West Sussex, United Kingdom Weather

  1. West Sussex, United Kingdom Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in West Sussex over the next 12 hours
  7. Temperature and possibility of rain in West Sussex in the coming days
  8. Rainfall in West Sussex in the coming days
  9. West Sussex Weather Summary
  10. Weather averages by month
  11. West Sussex's weather
  12. Frequently asked questions
  13. Comments
West Sussex, Weather
(Photo by Viktor Forgacs on Unsplash)

Current conditions

Updated:
5°C
41.0°F
°C °F

Condition: Fog

Pressure: 1,017 hPa

Feel like: 3 °C

Temperature: 5°C

Cloud: 100%

Humidity: 100%

Wind: WNW - 2 km/h

Visibility: 0.76 km

Weather forecast

Mon
09 Nov
2°C / 10°C
Drizzle
Tue
10 Nov
8°C / 12°C
Drizzle
Wed
11 Nov
12°C / 14°C
Slight Rain
Thu
12 Nov
8°C / 14°C
Slight Rain
Fri
13 Nov
7°C / 10°C
Overcast
Hourly forecast today:
04:00 AM
5° / 5°
5° / 5°
Fog
100% 5 km/h
05:00 AM
5° / 5°
5° / 5°
Overcast
99% 4 km/h
06:00 AM
5° / 5°
5° / 5°
Overcast
99% 5 km/h
07:00 AM
5° / 5°
5° / 5°
Overcast
99% 3 km/h
08:00 AM
6° / 6°
6° / 6°
Overcast
99% 4 km/h
09:00 AM
6° / 6°
6° / 6°
Overcast
97% 3 km/h
10:00 AM
6° / 7°
6° / 7°
Mainly Clear
93% 5 km/h
11:00 AM
7° / 9°
7° / 9°
Clear Sky
88% 4 km/h
12:00 PM
7° / 10°
7° / 10°
Clear Sky
79% 5 km/h
13:00 PM
6° / 11°
6° / 11°
Clear Sky
72% 7 km/h
14:00 PM
6° / 11°
6° / 11°
Clear Sky
68% 6 km/h

30 Day Averages and Extremes

  • Average high 10.7°C
  • Average low 4.27°C
  • Hottest day 16°C (26 October 2026)
  • Coldest day -2°C (16 November 2026)
  • Average humidity 79.93%
  • Days with precipitation 21 days
  • Highest precipitation 58 mm (11 November 2026)

Yesterday's Data

  • Max: 10°C
  • Min: 4°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in West Sussex over the next 12 hours

Temperature and possibility of rain in West Sussex in the coming days

Rainfall in West Sussex in the coming days

West Sussex Climate Summary

West Sussex features a Marine west coast, warm summer (Köppen classification: Cfb), with an average annual temperature of 11.97ºC (53.55ºF), which is about 1.22% higher than the national average for United Kingdom. Annually, the city experiences approximately 83.5 millimeters (3.29 inches) of rainfall, spread across 157.83 rainy days, accounting for 43.24% of the year.

Longitude 50.9280143
Latitude -0.4617075
Yearly high temperature 13.61ºC (56.5ºF)
Yearly low temperature 8.78ºC (47.8ºF)
Hottest month July 19.96ºC (67.93ºF)
Coldest month January 4.13ºC (39.43ºF)
Yearly precip 83.5mm (3.29in)
Days with rainfall 157.83 days (43.24%)
Driest month April (80.14%)
Wettest month October (81.09%)

Weather averages by month

Month High / Low (°C) Rain
January 7.72° / 4.13° 15.82 days
February 7.78° / 4.13° 14.09 days
March 9.86° / 5.03° 10.91 days
April 12.42° / 6.56° 9.73 days
May 14.81° / 8.96° 11.64 days
June 17.59° / 11.6° 12.18 days
July 19.96° / 13.87° 12.91 days
August 19.84° / 14.32° 12.91 days
September 18.22° / 12.87° 11.18 days
October 15.01° / 10.65° 14.73 days
November 11.19° / 7.58° 16.55 days
December 8.92° / 5.6° 15.18 days

West Sussex's weather

Frequently asked questions

1. What is the hottest month in West Sussex?

July has the highest average monthly temperature (daily mean of 19.96ºC) and January are the coolest (daily mean of 4.13ºC).

2. What should I wear in West Sussex today?

For today's cool weather in West Sussex, with temperatures between 8ºC to 11ºC (46.4ºF to 51.8ºF), you should consider wearing:
- Casual shoes or sneakers
- Light jacket or cardigan
- Cotton socks
- Comfortable pants or jeans

Temperature

Early
4°C / 5°C
Morning
6°C / 6°C
Afternoon
7°C / 11°C
Evening
5°C / 5°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 499
  • CO 297
  • NH3 1
  • NO2 29
  • O3 5
  • PM10 26
  • PM25 25
  • SO2 1
  • CH4 1,594

Sunrise / Sunset

07:05
16:24