Sussex Climate and Average Weather
Climate of Sussex: average temperatures, rainfall and seasons month by month.
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° | 40° | 4,3 in | ★★★☆☆ |
| March | 53° | 40° | 2,0 in | ★★★☆☆ |
| April | 58° | 43° | 1,5 in | ★★★★☆ |
| May | 64° | 49° | 2,0 in | ★★★★☆ |
| June | 69° | 54° | 2,0 in | ★★★★★ |
| July | 73° | 58° | 2,2 in | ★★★★☆ |
| August | 73° | 57° | 1,9 in | ★★★★☆ |
| September | 66° | 53° | 2,8 in | ★★★★☆ |
| October | 60° | 49° | 3,0 in | ★★★★☆ |
| November | 53° | 42° | 3,6 in | ★★★☆☆ |
| December | 50° | 42° | 3,4 in | ★★★☆☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Recent extremes in Sussex
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Sussex compares with nearby places
Annual averages, and the difference against Sussex.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| London Heathrow Airport | 37 mi | 54°F | +33°F warmer | 30 in |
| Hampshire | 38 mi | 53°F | about the same | 34 in |
| Kensington | 41 mi | 55°F | +33°F warmer | 28 in |
| Notting Hill | 42 mi | 55°F | +33°F warmer | 28 in |
| Westminster | 42 mi | 55°F | +33°F warmer | 28 in |
Climate by airport in Sussex
1 airports mapped in this atlas
Climate by city in Sussex
1 cities mapped in this atlas
Best time to visit Sussex
Go in May, June, July, August and September. 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.
What this means for Sussex
Today is about average for October. The forecast high of 62°F is in line with the 60°F typical for this month.
A 100% chance means rain is expected over most of the area. Plan indoor alternatives.
Gusts to 42 mph will push high-sided vehicles on exposed roads and bridges. Wet roads are likely; braking distances roughly double in heavy rain.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 57°F.
What to pack, what to skip
- Normal seasonal clothing - nothing unusual is needed this week
- Avoid exposed ridgelines, small boats and rooftop viewpoints while gusts stay above 42 mph.
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
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 61°F (16°C) in Sussex with overcast. It feels like 55°F. Today runs from 47°F to 62°F. Chance of precipitation is 100%. Sightseeing conditions score 6.4/10 - fair - plan around the weather.
The best time to visit Sussex is May, June, July, August and September. 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 about average for October. The forecast high of 62°F is in line with the 60°F typical for this month. The best window to be outside is roughly 1 PM to 4 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Sussex today at 8.1/10. Gusts to 42 mph will push high-sided vehicles on exposed roads and bridges. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Sussex
| Type | County |
|---|---|
| Region | England |
| Country | United Kingdom |
| Continent | Europe |
| Coordinates | 50°55′40.8″N 0°27′42.1″W (50.928, -0.4617) |
| Population | 1.700.000 |
| Local time | 1:36 PM (UTC+00:00) |
| Best months | May, June, July, August and September |
| Climate | Temperate |
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.
Explore Sussex
Every topic we hold for this place, and the same topic for the places around it.
Climate 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 61°F (16°C) with overcast. Humidity is 85% and wind is 19 mph.
When is the best time to visit Sussex?
May, June, July, August and September 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+00:00). The local time is 1:36 PM.
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 October 28, 2026 at 1:36 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
