Selsey weather
Loading live data…Cloudy,much the same tomorrow
Met Office, the European and the American model agree on a high near 18° in Selsey today. Tomorrow looks cloudy around 20°, with a 23% chance of rain.
CheckWeather.io on iPhoneFree. No ads, no account.Selsey weather warnings
Met Office yellow, amber and red warnings for London & South East EnglandChecking the Met Office for warnings in force for London & South East England…
Selsey weather in numbers
measured normals and 10 years of recorded weatherSelsey swings 16°C across the year, from 20°C highs in June to 4°C lows in January, and September is usually the wettest month in a year that brings about 1077 mm of precipitation. Over 10 years of recorded weather it averages 5 days a year at 25°C or above, 13 frost nights, and rain on 145 days.
Day counts are from the ERA5 reanalysis for Selsey’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.
The weather map: all three models at once
Met Office, European, American side by side around Selsey and nearby towns.Live rain radar →Selsey hourly forecast: next 14 hours
consensus of the three modelsRain in the next 24 hours, model by model
each model's own hourly precipitation, side by sideLoading the three models…
Selsey 10-day forecast, out to 14 days
where the models agree, and where they splitSelsey, England is at its warmest in Jun (average highs near 20°C) and coldest in Jan (lows around 4°C), with roughly 1077 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Selsey right now, and see exactly where they disagree.
We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United Kingdom before you trust any single number.
Selsey climate by month
average daytime high and overnight low across a typical yearWhich forecast is most accurate in Selsey?
CheckWeather Score, graded against the weather that actually happened
The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1887 cities. Lower error means a higher score. See which forecast model is most accurate in United Kingdom, how we measure forecast accuracy, or which model each weather app uses.
What do you think of the forecasts?
your vote countsThe accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United Kingdom? Give each 1 to 5 stars.
One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.
Where the models disagree
temperature and rain, judged separatelyThe models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.