Restaurant Terrace Sunlight: Plan Your Outdoor Seating

To plan restaurant terrace sunlight, check the exact seating area during the hours you serve, repeat the check for different seasons, and verify the predicted shade on site. Divide the terrace into recognisable zones so staff can explain the choices to guests. A terrace’s compass direction alone cannot tell you when a particular table will be sunny.

Begin with the sun calculator for the sun’s direction and height at each service, then inspect the actual tables, neighbouring structures and shade equipment.

Plan sunlight around service, not around noon. A café serving breakfast, a restaurant opening for lunch and a hotel terrace used for evening drinks need different checks, even if they share the same orientation.

What does “a sunny terrace” actually mean?

The phrase can describe several different things: direct morning sun beside the windows, a bright open sky at lunchtime, or a short patch of evening light near the street. Those experiences are not interchangeable for guests or the people arranging seating.

Start by making the promise specific. Which part of the terrace are you describing, in which season, and during which service? A photograph of one sunny table is not enough evidence for every table throughout the day.

A practical terrace plan records:

Where direct sun is possible during each service period.
Where buildings or terrain are expected to cast shade.
Which areas depend on movable or seasonal shade equipment.
What has been observed on site and what remains a prediction.
Which alternative tables can be offered when conditions change.

That turns a broad selling point into information the team can use when seating guests.

1. Start with how the terrace is used

Write down the actual service periods before examining the map. Include setup and waiting areas where they affect the arrangement, but keep the customer seating question separate from other operational requirements.

A breakfast terrace might prioritise an inviting morning position. A lunch service may need a mix of direct sun and shade. An evening venue may care about the last light on a particular view rather than maximum sunlight over the whole day.

The RHS recommends choosing outdoor seating positions according to how a space will be used and the desired sun or shade in its garden-design guidance. The guidance is written for gardens; applying it to a terrace is our own suggestion.

List the decisions you expect sunlight information to support:

Decision	Useful sunlight question
Breakfast layout	Which tables have potential morning sun during service?
Lunch seating	Where does building shade move while guests are eating?
Evening drinks	Which area keeps direct light later, if the sky is clear?
Seasonal reopening	Does the spring layout work differently from the summer one?
Private events	What changes during the full booking, not just at arrival?

Do not assume that the sunniest option is automatically best. Offer a useful choice where the space allows it, and let the operating team decide which arrangement fits service and guest needs.

2. Mark the real seating zones

Use a simple plan of the terrace and divide it into areas that staff can recognise. Existing table numbers are ideal; otherwise use stable descriptions such as “beside the façade”, “courtyard centre” and “street edge”.

Avoid labels like “sunny side” as the only identifier. They can become wrong later in the day. The physical zone should remain the same while its sunlight status changes.

Place the map at the actual terrace rather than the building’s general address. A hotel can have several outdoor spaces facing different directions, and a restaurant on a corner may have two quite distinct seating areas.

Walk each zone and note:

Nearby building walls and rooflines.
Overhangs, balconies and awnings.
Trees, hedges and other vegetation.
Temporary screens or structures.
The positions and usable coverage of movable shade.

Buildings usually appear in map data; awnings, umbrellas and trees usually do not. The walk tells you where a map prediction needs a second look. Sunlight is one input into the layout, alongside circulation, access and service.

3. Check the date and the service window

Choose a representative operating date and inspect the terrace from the beginning to the end of service. Then compare other dates that matter to your business, such as the start, middle and end of the outdoor season.

NASA’s explanation of seasonal sun paths and shadows shows why a layout checked in summer should not be assumed to behave identically in spring or autumn. The useful question is how that seasonal change intersects with your service hours.

Set local time carefully. If an owner, designer or manager is checking a venue remotely, use the venue’s time zone rather than the viewer’s. NOAA’s solar calculator highlights the importance of time-zone and daylight-saving settings.

For a first pass, inspect the opening, middle and closing parts of the service period. Add closer checks where a shadow transition appears relevant. You are looking for the changes that alter seating choices, rather than collecting a large set of nearly identical screenshots.

Keep a consistent comparison:

Fix the table zone and service period.
Inspect the planned date.
Change the date while retaining the same local service times.
Note which zones change character.
Revisit the actual site to check the assumptions.

This gives you a seasonal working picture that is easier to maintain than a vague annual claim about the terrace’s orientation.

4. Follow building shadows at table level

Explore mapped building and terrain shadows through the service window. Watch the specific area where guests sit, not just whether the surrounding street looks bright.

A neighbouring building may shade one end of the terrace while leaving another end exposed. The venue’s own façade or overhang can also matter. A large map view can conceal the distinction, so inspect the relevant area closely and compare it with the real site.

Our guide to when a patio will be in shade explains how location, date and obstructions interact. For hospitality, add the duration of a typical visit: a table that starts in shade may be in direct sun before the meal ends.

Record the change that staff need to understand. For example, “the façade-side zone is expected to become shaded during the later part of lunch” is more useful than “the sun is west”. Add actual checked times only after investigating your location.

Map observation	Follow-up on site
Shadow reaches a seating zone	Check the wall or building casting it and the real seating position
A zone appears sunny throughout service	Look for small overhangs, trees or other missing obstacles
Shadow moves across the terrace	Check which table groups it reaches first
Different dates give different results	Identify whether a seasonal layout or briefing is useful

A simulated shadow edge tells you when to go and look. It cannot promise the minute a particular chair goes into shade.

5. Check awnings, umbrellas and trees in person

A terrace often relies on features that are not fully represented in a map model. Open the real awning where permitted, inspect the intended umbrella positions and ask whether seasonal planting changes the space.

A sun-path overlay helps you understand the direction from which light approaches. It does not automatically calculate every gap in a canopy or predict the changing density of foliage. Inspect these details while standing in the affected zone.

If you are considering new shade equipment, use sunlight information to develop the brief. Describe the area and service period you want to cover, then discuss the actual equipment, positioning and installation with the supplier and venue team. Our guide to planning shade under a pergola or patio cover shows how to work out how far a canopy needs to reach.

The RHS’s guidance on creating a calm outdoor space recommends seating in both sun and shade. For a terrace, the practical adaptation is to preserve choice where possible instead of making every table depend on one condition.

Check these questions before approving a layout:

Which shade features will actually be present during service?
Can they be used in the conditions expected that day?
Does the useful shade fall on the seats as well as the tabletop?
What changes if a table moves or the seating arrangement is expanded?
Which alternative area can staff offer if the preferred zone is unavailable?

6. Verify the model with an observation log

Visit during a relevant service period and record what happens at the marked zones. Note the date, local time and whether cloud prevents you from seeing a clear direct-sun pattern.

Use photographs and short notes if that fits your existing operations process. The important part is repeatability: another person should be able to identify the same area and understand what was observed.

Separate two statements in the log:

Prediction: the map suggests a building shadow will reach this zone during service.
Observation: direct sun was visible or blocked at this zone when checked on site.

If the results disagree, investigate the inputs before changing the entire plan. Check location, date, time zone, map coverage and any local obstacle missing from the model. Also check whether cloud, rather than a building, caused the apparent loss of direct sun.

NOAA’s calculation details explain why observed solar conditions can differ from calculated events. At a terrace, local structures add another reason to use a planning estimate together with a site visit.

Repeat the observation when the season or physical layout changes materially. You do not need to rebuild the plan every day, but a new awning, neighbouring construction or a substantially different service time can make older notes less useful.

7. Give staff a usable briefing

Translate the findings into the existing table plan or service briefing. A manager should not have to interpret an astronomical diagram while guests are arriving.

Use plain, conditional language: “These tables often receive direct sun during early lunch in this season, weather permitting.”

Record any practical action the team has agreed. That might be offering a choice between two zones, checking an alternative before seating a group, or explaining that a table’s sunlight may change during the visit.

A compact working sheet can use these columns:

Field	Example content to record
Zone	Existing table numbers or a stable area name
Date range checked	The actual dates used in the planning exercise
Service period	Breakfast, lunch, evening or a named event
Expected pattern	Potential direct sun and the relevant building-shadow change
Verification	Date and notes from the on-site check
Alternative	Another suitable zone, subject to availability

Keep the full reasoning available to the person maintaining the plan, while giving front-of-house staff the shorter version. The briefing should support a conversation with guests, not make every server responsible for operating a sun calculator.

A worked example: a café terrace in Lisbon

Take a café in central Lisbon (38.72° N, 9.14° W) with tables on the pavement and four-storey buildings, roughly 12 metres tall, around it. The sun angles below come from SunCast’s sun calculator in local time (WEST); the shadow column is the ground shadow of a 12-metre building.

Date	Sunset	Sun at 13:30	12 m shadow at 13:30	Sun at 19:00	12 m shadow at 19:00
15 May	20:42	70°, bearing 178°	4 m	18°, bearing 280°	37 m
21 June	21:05	75°, bearing 173°	3 m	22°, bearing 283°	30 m
15 September	19:47	54°, bearing 179°	9 m	8°, bearing 267°	84 m

At lunch from May to July the sun is almost overhead and due south. A 12-metre building throws only 3 to 4 metres of shade, so only the tables right against a north-facing wall stay shaded. Everyone else is in full sun, and umbrellas or an awning have to do the work. By mid-September the lunchtime shadow is 9 metres long, enough to shade the pavement and part of a narrow street on the north side of a block.

At 19:00 in June the sun is low in the west-north-west, and any building of that height to the west of the terrace and within 30 metres puts it in shade. A terrace with an open view west, such as a river or a square, keeps direct light past 20:00, when the sun is still 10° up. In mid-September the sun is only 8° high at 19:00 and sets at 19:47, so evening sun is effectively over before dinner service begins.

For this café, that suggests a seasonal briefing rather than new equipment: summer lunch needs shade more than sun, early-evening drinks in June and July can be sold on the light where the west is open, and the September evening offer should not depend on sunshine. Check those conclusions at the real site, including the café’s awning, before changing the layout.

Different hospitality businesses need different checks

Breakfast cafés

Focus on when guests actually arrive and how long they tend to occupy the outdoor space. Morning sun on the building does not necessarily reach tables underneath a deep overhang.

Check the entrance and ordering area as well as the seats. If customers choose a table before ordering, make the available sun and shade options easy for staff to describe without overstating how long they will last.

A breakfast-focused plan can be compact: a few well-understood zones, dates checked and a clear distinction between a sunny forecast and the potential sun path. Avoid adding evening analysis if the terrace is never used then.

Restaurants with long lunch service

Look at the transition through the whole service period. A group seated near the beginning may still be at the table when building shade moves away or reaches the zone.

Discuss that change when deciding how to describe the seating. If guests ask for shade throughout their meal, staff need to know which areas are worth checking rather than simply pointing to whichever table is shaded at arrival.

Coordinate sunlight choices with the restaurant’s actual booking and table-management process. The sun map should inform that process, not create a parallel seating system that conflicts with it.

Hotels and private-event venues

A hotel terrace may serve breakfast, afternoon drinks and evening functions on the same day. Check each use separately and name the areas consistently across departments.

For a private booking, repeat the analysis for the event date and its full schedule. A general summer terrace note may not answer the organiser’s question about a particular ceremony or reception.

Our outdoor event-planning solution and ceremony sunlight guide cover those date-specific decisions. Keep the handover clear between the people selling the space and those who will operate it.

Weather and comfort remain separate decisions

A sun map describes potential direct light and geometric shadow. It does not predict a guest’s experience from sunlight alone. Wind, air temperature, rain, cloud and the physical setting all deserve attention in the venue’s usual planning process.

The Met Office’s forecast guide shows these as distinct forecast variables. Review them together rather than assuming that a shaded table or a sunny sky settles the question of whether outdoor service will work well.

Also avoid interpreting a cloud percentage as the proportion of a meal that will be sunny. The Met Office’s map-layer guide defines cloud cover in terms of sky coverage. It is not a timetable for individual sun breaks over your terrace.

Keep these distinctions in public descriptions too. “Outdoor seating with morning-sun potential” and “guaranteed sunshine” are very different promises. Prefer details staff can stand behind for the season and location.

What SunCast contributes to the terrace plan

SunCast is an iPhone and iPad sunlight-planning app with AR sun paths, mapped building and terrain shadows, solar times and weather information, as listed on its App Store page. For a terrace, the AR view shows the sun’s path from the tables themselves, and the map compares building shadows across dates and service times. It does not model terrace furniture, awnings or thermal comfort.

If a proposed building is part of the question, SunCast for architects and renovators explains how Construction Mode can support an initial visual exploration. Keep that separate from a professional assessment where the decision requires one.

Put the findings into practice

Choose one service period and a few recognisable seating zones for your first pass. Check the planned date, compare the relevant season and verify the result on site before expanding the exercise.

Assign someone to maintain the notes. Add a review when service times change, the terrace layout is revised or a neighbouring structure affects the view of the sky. Keep dates on observations so the team can tell whether a note still describes the current space.

When several people share responsibility, agree which version is current. Keep the approved seating plan, its date assumptions and the latest observation together, so a new colleague can follow the zones and alternatives without a folder of unexplained screenshots.

Start by checking your terrace at your next service time with the sun calculator. Then walk the space and turn the predicted sun and shade into a seating plan your team can explain with confidence.