Sussex Weather Forecast
Sussex weather: 69°F, mainly clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Sussex is a county in England. Sussex is a county or metropolitan area in the United Kingdom. It has a population of about 1.7 million.
Right now it is 69°F (20°C) in Sussex with mainly clear. It feels like 65°F. Today runs from 57°F to 80°F. Chance of precipitation is 14%. Sightseeing conditions score 9.1/10 - excellent - go now.
The best time to visit Sussex is May, June, July and August. The climate is temperate. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 73°F, while January is the coldest with lows near 36°F.
The closest major airport is London Gatwick Airport (LGW), about 20 mi away. Nearby highlights include Big Ben and the Houses of Parliament, River Thames, British Museum and Tower of London.
In plain terms. Today is warmer than average for August. The forecast high of 80°F is 9.4°F above the 71°F typical for this month. The best window to be outside is roughly 6 PM to 9 PM, when temperature, rain chance and wind line up best. photography is the strongest bet in Sussex today at 9.4/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Weather in Sussex right now
Source: Open-Meteo. Updated 10:09 AM, Aug 25 local time.
See the Sussex forecast by time range
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Sussex
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Tue, Aug 25 | ☁️ Overcast | 80° / 57° | 14% | 11 mph | 5 |
| Wed, Aug 26 | 🌧️ Rain | 76° / 62° | 39% · 0,2 in | 9 mph | 4 |
| Thu, Aug 27 | ☁️ Overcast | 72° / 61° | 77% · 0,0 in | 16 mph | 5 |
| Fri, Aug 28 | 🌦️ Light drizzle | 69° / 58° | 62% · 0,0 in | 18 mph | 5 |
| Sat, Aug 29 | 🌦️ Light rain | 68° / 60° | 71% · 0,4 in | 20 mph | 5 |
| Sun, Aug 30 | 🌦️ Drizzle | 69° / 59° | 60% · 0,1 in | 15 mph | 4 |
| Mon, Aug 31 | 🌧️ Heavy drizzle | 68° / 59° | 38% · 0,5 in | 17 mph | 5 |
| Tue, Sep 1 | ☁️ Overcast | 66° / 52° | 18% | 8 mph | 5 |
| Wed, Sep 2 | 🌦️ Light drizzle | 69° / 56° | 47% · 0,0 in | 13 mph | 5 |
| Thu, Sep 3 | 🌦️ Light drizzle | 69° / 57° | 25% · 0,0 in | 15 mph | 5 |
| Fri, Sep 4 | ☁️ Overcast | 71° / 62° | 22% | 13 mph | 4 |
| Sat, Sep 5 | ⛅ Partly cloudy | 75° / 61° | 29% | 10 mph | 4 |
| Sun, Sep 6 | 🌦️ Drizzle | 68° / 59° | 18% · 0,1 in | 13 mph | 4 |
| Mon, Sep 7 | ☁️ Overcast | 66° / 54° | 22% | 13 mph | 5 |
| Tue, Sep 8 | ☁️ Overcast | 66° / 50° | — | 11 mph | 4 |
| Wed, Sep 9 | ☀️ Clear sky | -- / -- | — | -- | 5 |
Climate in Sussex month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 46° | 36° | 4,6 in | ★★☆☆☆ |
| February | 49° | 41° | 4,3 in | ★★★☆☆ |
| March | 53° | 40° | 2,0 in | ★★★☆☆ |
| April | 58° | 44° | 1,5 in | ★★★★☆ |
| May | 64° | 49° | 2,0 in | ★★★★☆ |
| June | 69° | 54° | 2,0 in | ★★★★★ |
| July | 73° | 58° | 2,2 in | ★★★★☆ |
| August | 71° | 56° | 1,5 in | ★★★★★ |
| September | 67° | 54° | 3,1 in | ★★★★☆ |
| October | 60° | 50° | 4,3 in | ★★★☆☆ |
| November | 52° | 43° | 3,6 in | ★★★☆☆ |
| December | 50° | 42° | 3,4 in | ★★★☆☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Weather map for Sussex
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in Sussex
Pollen today
Pollen is modelled for Europe only; other regions show no values.
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Sussex
Go in May, June, July and August. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
Weather by airport in Sussex
1 airports mapped in this atlas
Weather by city in Sussex
1 cities mapped in this atlas
Explore Sussex
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Sussex?
Sussex is a county in England. Its coordinates are 50.928, -0.4617. It lies in Europe.
What is the weather like in Sussex right now?
It is currently 69°F (20°C) with mainly clear. Humidity is 60% and wind is 10 mph.
When is the best time to visit Sussex?
May, June, July and August offer the most comfortable conditions in Sussex, which has a temperate climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Sussex in?
Sussex observes Europe/London (UTC+01:00). The local time is 10:09 AM.
How many people live in Sussex?
Sussex has a population of approximately 1.7 million.
What is the nearest airport to Sussex?
The closest airports are London Gatwick Airport (LGW), 20 mi away, London Heathrow Airport (LHR), 37 mi away and Paris Charles de Gaulle Airport (CDG), 188 mi away.
What are the top things to do in Sussex?
Popular options include Big Ben and the Houses of Parliament, River Thames, British Museum, Tower of London, Stonehenge, Avebury and Associated Sites and Stonehenge.
What places are in Sussex?
Sussex covers 2 places in this atlas, including London Gatwick Airport and Brighton.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (uk-regions) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 25, 2026 at 10:09 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
