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:
22°C
71.6°F
°C °F

Condition: Clear Sky

Pressure: 1,022 hPa

Feel like: 23 °C

Temperature: 22°C

Cloud: 0%

Humidity: 76%

Wind: NE - 11 km/h

Visibility: 27.24 km

Weather forecast

Tue
23 Jun
17°C / 36°C
Slight Thunderstorm
Wed
24 Jun
20°C / 35°C
Slight Thunderstorm
Thu
25 Jun
17°C / 22°C
Moderate Drizzle
Fri
26 Jun
16°C / 21°C
Overcast
Sat
27 Jun
14°C / 22°C
Partly Cloudy
Hourly forecast today:
08:00 AM
17° / 22°
17° / 22°
Clear Sky
76% 23 km/h
09:00 AM
18° / 24°
18° / 24°
Clear Sky
68% 26 km/h
10:00 AM
18° / 26°
18° / 26°
Clear Sky
61% 28 km/h
11:00 AM
18° / 27°
18° / 27°
Clear Sky
57% 30 km/h
12:00 PM
18° / 29°
18° / 29°
Clear Sky
53% 30 km/h
13:00 PM
18° / 30°
18° / 30°
Clear Sky
50% 32 km/h
14:00 PM
18° / 30°
18° / 30°
Clear Sky
49% 30 km/h
15:00 PM
18° / 30°
18° / 30°
Clear Sky
50% 35 km/h
16:00 PM
18° / 29°
18° / 29°
Clear Sky
52% 32 km/h
17:00 PM
19° / 28°
19° / 28°
Clear Sky
56% 31 km/h
18:00 PM
19° / 27°
19° / 27°
Overcast
60% 24 km/h

30 Day Averages and Extremes

  • Average high 20.53°C
  • Average low 12.5°C
  • Hottest day 36°C (23 June 2026)
  • Coldest day 0°C (05 July 2026)
  • Average humidity 69.5%
  • Days with precipitation 21 days
  • Highest precipitation 64 mm (07 June 2026)

Yesterday's Data

  • Max: 30°C
  • Min: 16°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 33ºC (91.4ºF), consider wearing:
- Lightweight, loose-fitting shorts
- Sleeveless tops or vests
- Light, natural fabrics (like cotton or linen)
- Broad-brimmed sun hat

Temperature

Early
16°C / 17°C
Morning
18°C / 24°C
Afternoon
18°C / 30°C
Evening
17°C / 22°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 440
  • CO 108
  • NH3 1
  • NO2 3
  • O3 67
  • PM10 8
  • PM25 4
  • SO2 0
  • CH4 1,404

Sunrise / Sunset

03:48
20:20