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:
25°C
77.0°F
°C °F

Condition: Partly Cloudy

Pressure: 1,015 hPa

Feel like: 25 °C

Temperature: 25°C

Cloud: 76%

Humidity: 45%

Wind: NW - 5 km/h

Visibility: 31.5 km

Weather forecast

Tue
11 Aug
15°C / 31°C
Overcast
Wed
12 Aug
17°C / 34°C
Clear Sky
Thu
13 Aug
20°C / 30°C
Moderate Drizzle
Fri
14 Aug
17°C / 23°C
Drizzle
Sat
15 Aug
14°C / 24°C
Overcast
Hourly forecast today:
12:00 PM
12° / 25°
12° / 25°
Partly Cloudy
45% 17 km/h
13:00 PM
12° / 25°
12° / 25°
Partly Cloudy
43% 19 km/h
14:00 PM
12° / 26°
12° / 26°
Partly Cloudy
41% 17 km/h
15:00 PM
15° / 24°
15° / 24°
Overcast
58% 32 km/h
16:00 PM
15° / 24°
15° / 24°
Clear Sky
55% 30 km/h
17:00 PM
15° / 24°
15° / 24°
Clear Sky
56% 28 km/h
18:00 PM
15° / 23°
15° / 23°
Overcast
58% 23 km/h
19:00 PM
14° / 22°
14° / 22°
Clear Sky
64% 17 km/h
20:00 PM
14° / 19°
14° / 19°
Clear Sky
76% 11 km/h
21:00 PM
16° / 19°
16° / 19°
Clear Sky
84% 33 km/h
22:00 PM
15° / 18°
15° / 18°
Clear Sky
84% 19 km/h

30 Day Averages and Extremes

  • Average high 23.93°C
  • Average low 13.47°C
  • Hottest day 34°C (12 August 2026)
  • Coldest day 0°C (23 August 2026)
  • Average humidity 59.17%
  • Days with precipitation 12 days
  • Highest precipitation 17 mm (21 August 2026)

Yesterday's Data

  • Max: 26°C
  • Min: 14°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 very hot weather in West Sussex, with the high temperatures above 26ºC (78.8ºF), consider wearing:
- Open-toed sandals or light sneakers
- Thin, moisture-wicking socks
- Wide-brimmed sun hat
- Lightweight t-shirt or tank top

Temperature

Early
13°C / 15°C
Morning
13°C / 22°C
Afternoon
15°C / 24°C
Evening
16°C / 19°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 433
  • CO 126
  • NH3 2
  • NO2 1
  • O3 78
  • PM10 6
  • PM25 4
  • SO2 0
  • CH4 1,361

Sunrise / Sunset

04:43
19:31