Weather in London - 14-day forecast

Detailed weather forecast for London, United Kingdom: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in London

today☁️ 20°💧 0.2 mm

Sun☁️ 24°💧 1.7 mm

Mon☁️ 22°💧 13.4 mm

Tue🌧️ 20°💧 0.5 mm

Wed☁️ 19°💧 16.2 mm

Thu🌧️ 19°💧 0.5 mm

Fri☁️ 21°💧 3.5 mm

Sat🌧️ 14°💧 0.7 mm

Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Sunday 6 Sept in London, the forecast high is 24°C. Typical daytime temperatures at this time of year range from 18°C to 23°C, so it will be warmer than usual. It is warmer than 85% of similar days.

Saturday 5 Sept

20°Cnear normal

usually 18°C–23°C

night: exceptionally warm rain: typical rainfall wind: lighter than usual

Sunday 6 Sept

24°Cwarmer than usual

usually 18°C–23°C

warmer than 85% of similar days

night: exceptionally warm rain: more rain than usual wind: lighter than usual

Monday 7 Sept

22°Cwarmer than usual

usually 18°C–23°C

warmer than 77% of similar days

night: exceptionally warm rain: exceptionally wet wind: typical

Tuesday 8 Sept

20°Cnear normal

usually 18°C–23°C

night: exceptionally warm rain: typical rainfall wind: typical

Wednesday 9 Sept

19°Cnear normal

usually 18°C–23°C

night: exceptionally warm rain: exceptionally wet wind: typical

Thursday 10 Sept

19°Cnear normal

usually 18°C–23°C

night: exceptionally warm rain: typical rainfall wind: lighter than usual

Friday 11 Sept

21°Cwarmer than usual

usually 17°C–22°C

warmer than 71% of similar days

night: exceptionally warm rain: more rain than usual wind: typical

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 21°C by day. The coolest year was 1986 (17°C) and the warmest was 2023 (28°C). The current forecast averages 21°C - close to the historical median.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - London

London - 14-day weather forecast infographic

London 30 & 45-day weather - long-range outlook

Next 16 days · forecast

21°

around 18° at night · days with rain: 5

Weeks 3-4 · avg for September

19°

around 11° at night · rain chance 39%

Weeks 5-7 · avg for October

16°

around 9° at night · rain chance 46%

The 30 & 45-day outlook for London: the next 16 days are a numerical forecast updated daily - on average 21° by day and 18° at night. Further out we rely on multi-year climate averages: around 19° in September, and about 16° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for London

Saturday5 September 2026

☁️20°broken clouds

sunrise 06:19 · sunset 19:39 · night 17° · evening 20° · rain 0.15 mm · humidity 45% · wind 4 m/s · clouds 53%

Sunday6 September 2026

☁️24°overcast clouds

sunrise 06:20 · sunset 19:37 · night 20° · evening 24° · rain 1.74 mm · humidity 36% · wind 5 m/s · clouds 89%

Monday7 September 2026

☁️22°broken clouds

sunrise 06:22 · sunset 19:34 · night 17° · evening 21° · rain 13.35 mm · humidity 53% · wind 5 m/s · clouds 66%

Tuesday8 September 2026

🌧️20°light rain

sunrise 06:24 · sunset 19:32 · night 15° · evening 18° · rain 0.45 mm · humidity 40% · wind 5 m/s · clouds 14%

Wednesday9 September 2026

☁️19°broken clouds

sunrise 06:25 · sunset 19:30 · night 16° · evening 18° · rain 16.17 mm · humidity 40% · wind 5 m/s · clouds 53%

Thursday10 September 2026

🌧️19°light rain

sunrise 06:27 · sunset 19:27 · night 18° · evening 20° · rain 0.48 mm · humidity 72% · wind 5 m/s · clouds 99%

Friday11 September 2026

☁️21°broken clouds

sunrise 06:28 · sunset 19:25 · night 16° · evening 20° · rain 3.45 mm · humidity 42% · wind 6 m/s · clouds 53%

Saturday12 September 2026

🌧️14°light rain

sunrise 06:30 · sunset 19:23 · night 14° · evening 14° · rain 0.66 mm · humidity 69% · wind 4 m/s · clouds 100%

Sunday13 September 2026

☀️20°clear sky

sunrise 06:31 · sunset 19:21 · night 16° · evening 18° · humidity 40% · wind 4 m/s · clouds 45%

Monday14 September 2026

☀️21°clear sky

sunrise 06:33 · sunset 19:18 · night 16° · evening 18° · rain 0.21 mm · humidity 43% · wind 4 m/s · clouds 2%

Tuesday15 September 2026

☁️19°overcast clouds

sunrise 06:35 · sunset 19:16 · night 18° · evening 19° · rain 6.87 mm · humidity 53% · wind 2 m/s · clouds 100%

Wednesday16 September 2026

🌧️20°light rain

sunrise 06:36 · sunset 19:14 · night 17° · evening 18° · rain 0.36 mm · humidity 61% · wind 7 m/s · clouds 83%

Thursday17 September 2026

☁️21°overcast clouds

sunrise 06:38 · sunset 19:11 · night 18° · evening 19° · humidity 49% · wind 6 m/s · clouds 96%

Friday18 September 2026

🌧️24°light rain

sunrise 06:39 · sunset 19:09 · night 21° · evening 23° · rain 0.27 mm · humidity 60% · wind 8 m/s · clouds 80%

Saturday19 September 2026

🌧️28°light rain

sunrise 06:41 · sunset 19:07 · night 22° · evening 24° · rain 0.15 mm · humidity 37% · wind 5 m/s · clouds 52%

Sunday20 September 2026

🌤️26°a few clouds

sunrise 06:43 · sunset 19:04 · night 25° · evening 25° · humidity 47% · wind 3 m/s · clouds 22%

UV index in London - is it safe to sunbathe?

Today the UV index in London is 4 (moderate) - unprotected fair skin can burn in about 55 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.

Pollen in London - info for allergy sufferers

Today grasses pollen is highest in London - about 1 grains/m³, low level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.

London weather through the year

Warmest, driest months on average: May, June, July, August.

Upcoming public holidays in United Kingdom: Christmas Day — 25 December · Boxing Day — 28 December · New Year's Day — 1 January.

Nearby and related places

ManchesterLiverpoolNewcastleJerseySheffieldCoventry

FAQ - London weather

What is the weather like in London today?

Today it is about 20° during the day and 17° at night, broken clouds.

How far ahead can I check the forecast for London?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.