West Sussex, United Kingdom Weather
- West Sussex, United Kingdom Weather
- Current conditions
- Weather forecast
- Averages and extremes
- Yesterday's Data
- 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 Weather Summary
- Weather averages by month
- West Sussex's weather
- Frequently asked questions
- Comments
Current conditions
Updated:
Partly Cloudy
22°C
°C
°F
Condition: Partly Cloudy
Pressure: 1,020 hPa
Feel like: 21 °C
Temperature: 22°C
Cloud: 66%
Humidity: 51%
Wind: WNW - 14 km/h
Visibility: 39.52 km
Thu
24 Sep
11°C / 21°C
Overcast
Fri
25 Sep
9°C / 19°C
Overcast
Sat
26 Sep
7°C / 19°C
Overcast
Sun
27 Sep
8°C / 15°C
Drizzle
Mon
28 Sep
11°C / 20°C
Moderate Drizzle
Hourly forecast today:
15:00 PM
12° / 22°
12° / 22°
Partly Cloudy
51%
30 km/h
16:00 PM
12° / 22°
12° / 22°
Mainly Clear
52%
26 km/h
17:00 PM
12° / 21°
12° / 21°
Overcast
57%
16 km/h
18:00 PM
11° / 19°
11° / 19°
Overcast
61%
26 km/h
19:00 PM
9° / 17°
9° / 17°
Clear Sky
61%
22 km/h
20:00 PM
8° / 14°
8° / 14°
Clear Sky
67%
15 km/h
21:00 PM
8° / 13°
8° / 13°
Clear Sky
70%
16 km/h
22:00 PM
8° / 14°
8° / 14°
Mainly Clear
67%
15 km/h
23:00 PM
7° / 12°
7° / 12°
Mainly Clear
71%
16 km/h
00:00 AM
7° / 12°
7° / 12°
Partly Cloudy
71%
14 km/h
01:00 AM
8° / 11°
8° / 11°
Partly Cloudy
81%
12 km/h
30 Day Averages and Extremes
- Average high 18.1°C
- Average low 10.77°C
- Hottest day 23°C (21 September 2026)
- Coldest day 0°C (06 October 2026)
- Average humidity 75.43%
- Days with precipitation 20 days
- Highest precipitation 38 mm (29 September 2026)
Yesterday's Data
- Max: 23°C
- Min: 12°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
- London
- Birmingham
- Liverpool
- Sheffield
- Leeds
- Glasgow City
- Manchester
- Leicester
- Bradford
- City of Bristol
- City of Edinburgh
- Cardiff
- Cornwall
- Ards and North Down
- Buckinghamshire
- Camden
- Cheshire East
- Clackmannanshire
- Central Bedfordshire
- Carmarthenshire
- Akrotiri
- Bath and North East Somerset
- Blackpool
- Denbighshire
- Solihull
- South Ayrshire
- Kirklees
- Inverclyde
- Knowsley
- Halton
- North Somerset
- Luton
- Neath Port Talbot
- Nottingham
- Rotherham
- Hillingdon
- Nottinghamshire
- Hammersmith and Fulham
- Hackney
- Hounslow
- Lewisham
- Durham County
- Haringey
- Derbyshire
- Darlington
- Hartlepool
- Greenwich
- Isle of Wight
- Northumberland
- Dumfries and Galloway
- Harrow
- Dhekelia
- Essex
- Northamptonshire
- Derry City and Strabane
- Medway
- Renfrewshire
- East Riding of Yorkshire
- Salford
- Falkirk
- Hertfordshire
- Isles of Scilly
- Herefordshire
- Kingston upon Hull
- Lancashire
- Doncaster
- Gwynedd
- East Lothian
- Lisburn and Castlereagh
- Merthyr Tydfil
- Portsmouth
- Mid and East Antrim
- Middlesbrough
- Monmouthshire
- Newport
- Newham
- Norfolk
- North Tyneside
- Orkney Islands
- Reading
- Redcar and Cleveland
- Rochdale
- Moray
- Perth and Kinross
- Leicestershire
- Slough
- Rutland
- Shropshire
- East Dunbartonshire
- South Gloucestershire
- Sefton
- Dorset
- York
- Suffolk
- Telford and Wrekin
- Wiltshire
- South Tyneside
- Wirral
- Westminster
- Warrington
- Wakefield
- Tameside
- Stoke-on-Trent
- Sunderland
- Sutton
- Stirling
- Swansea
- Swindon
- Torbay
- Warwickshire
- West Berkshire
- Stockport
- Wokingham
- Trafford
- Worcestershire
- Waltham Forest
- North East Lincolnshire
- Scottish Borders
- Bromley
- Wolverhampton
- Somerset
- Aberdeen City
- Southampton
- Barking and Dagenham
- Brighton and Hove
- Dudley
- Conwy
- Cheshire West and Chester
- Hampshire
- Kent
- Newry, Mourne and Down
- Milton Keynes
- North Ayrshire
- Rhondda, Cynon, Taf
- Southend-on-Sea
- Stockton-on-Tees
- West Lothian
- Southwark
- Staffordshire
- Vale of Glamorgan
- Sandwell
- Shetland Islands
- Barnsley
- Dundee City
- Newcastle upon Tyne
- Armagh City, Banbridge and Craigavon
- Torfaen
- Antrim and Newtownabbey
- Oxfordshire
- West Dunbartonshire
- East Ayrshire
- Oldham
- Gateshead
- Blaenau Gwent
- Devon
- Thurrock
- Fife
- Walsall
- Bournemouth
- Bury
- Tower Hamlets
- Powys
- Caerphilly
- Croydon
- Aberdeenshire
- East Sussex
- Cumbria
- Derby
- Ealing
- St. Helens
- East Renfrewshire
- Wandsworth
- Enfield
- Bridgend
- Wigan
- Fermanagh and Omagh
- Havering
- Isle of Anglesey
- Islington
- Lambeth
- Angus
- Peterborough
- Bracknell Forest
- Lincolnshire
- Kingston upon Thames
- Merton
- Wrexham
- Mid Ulster
- Midlothian
- Na h-Eileanan an Iar
- Bedford
- Plymouth
- North Lincolnshire
- Highland
- Poole
- Redbridge
- Richmond upon Thames
- Flintshire
- North Yorkshire
- North Lanarkshire
- Pembrokeshire
- Bolton
- South Lanarkshire
- Gloucestershire
- Kensington and Chelsea
- Surrey
- Windsor and Maidenhead
- Argyll and Bute
- Belfast
- Brent
- Cambridgeshire
- Causeway Coast and Glens
- Ceredigion
- Barnet
- Coventry
- Blackburn with Darwen
- Calderdale
- Bexley
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 mild weather in West Sussex, with temperatures between 16ºC to 19ºC (60.8ºF to 66.2ºF), consider wearing:
- Cotton socks
- Light jacket (for cooler periods)
- Comfortable jeans or slacks
- Lightweight sweater or cardigan
Temperature
Early
13°C / 13°C
Morning
14°C / 19°C
Afternoon
12°C / 22°C
Evening
8°C / 13°C
Air quality
Moderate
Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals
- CO2 436
- CO 156
- NH3 1
- NO2 1
- O3 76
- PM10 5
- PM25 4
- SO2 0
- CH4 1,365
Sunrise / Sunset
05:51
17:55