Skip to main content
Every UK forecast, compared
checkweather.io
CheckWeather UKPortishead
Forecast confidence: Medium · models disagree by 3°C

Portishead weather

Loading live data…

Light drizzle,rain likely tomorrow

Met Office, the European and the American model put Portishead's high today between 23° and 26°, a 3° split. Tomorrow looks light drizzle around 20°, with a 70% chance of rain.

25°14°
20°16°
18°13°
18°13°
19°13°
21°14°
Todaysplit ±3°Tomorrowmodels agreeTuesdaymodels agreeWednesdaymodels agreeThursdaymodels agreeFridaysplit ±2°
Met OfficeUKMO model
26°
Light drizzle
Today 26°·Low 15°·Rain -
EuropeanECMWF
23°
Light drizzle
Today 23°·Low 15°·Rain 88%
AmericanNOAA GFS
26°
Drizzle
Today 26°·Low 13°·Rain 42%

The weather map: all three models at once

Met Office, European, American side by side around Portishead and nearby towns.Live rain radar →
Loading the three model maps…

Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split
Today
Light drizzle
25° 14°
±3°
Tomorrow
Light drizzle
20° 16°
models agree
Tue
Light rain
18° 13°
models agree
Wed
Cloudy
18° 13°
models agree
Thu
Light drizzle
19° 13°
models agree
Fri
Light drizzle
21° 14°
±2°
Sat
Drizzle
20° 11°
±5°
Sun
Drizzle
21° 16°
±4°
Mon
Cloudy
20° 15°
±3°
Tue
Light rain
20° 14°
models agree
Wed
Light rain
19° 11°
±6°
Thu
Light drizzle
19° 11°
±5°
Fri
Heavy drizzle
18° 14°
models agree
Sat
Light drizzle
18° 12°
±4°

Portishead, England is at its warmest in Jun (average highs near 20°C) and coldest in Jan (lows around 4°C), with roughly 1249 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Portishead 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.

Portishead climate by month

average daytime high and overnight low across a typical year
Jan
Feb
10°
Mar
10°
Apr
12°
May
17°
10°
Jun
20°
13°
Jul
19°
15°
Aug
20°
15°
Sep
19°
14°
Oct
15°
11°
Nov
11°
Dec
10°

Which forecast is most accurate in Portishead?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
97
/100rank #1
94±0.3°C97±0.9 mph100100% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
Met Office logo
Met Office
79
/100rank #2
71±1.6°C97±0.8 mph7687% hitMet Office (United Kingdom)Exeter, United Kingdom
American logo
American
74
/100rank #3
49±2.9°C94±2.0 mph8994% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 1880 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.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±3°23° to 26°±46%42% to 88% chance
Tomorrow±2°19° to 20°±58%12% to 70% chance
Tue±1°18° to 19°±16%84% to 100% chance
Wed±2°18° to 19°±2%3% to 5% chance
Thu±1°19° to 20°±7%23% to 30% chance

The 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.

Sunrise and sunset in Portishead

today, local time
Sunrise
06:31
Sunset
19:46
Daylight
13h 15m

Common questions

What's the weather in Portishead today?
On this page we show what Met Office, European, American each forecast for Portishead today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Portishead today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Met Office, European, American for Portishead and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Portishead?
Over the last 30 days, the European model has been the most accurate for Portishead (CheckWeather Score 97/100), ahead of the Met Office at 79. We grade every model against the recorded weather. See the UK accuracy scoreboard for the full method.
What is the warmest month in Portishead?
June is typically the warmest month in Portishead, with average highs around 20°C.
How cold does Portishead get?
The coldest month in Portishead is January, when overnight lows average about 4°C.
How much rain does Portishead get?
Portishead sees roughly 1249 mm of precipitation a year, with September usually the wettest month.

Nearby

More UK weather