Weather in Groningen - 14-day forecast

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

Forecast for the next days in Groningen

today🌧️ 18°💧 0.8 mm

Sun🌤️ 20°💧 0.2 mm

Mon☁️ 26°💧 9.2 mm

Tue🌧️ 17°💧 3.1 mm

Wed🌧️ 16°💧 4.3 mm

Thu🌧️ 19°💧 1.4 mm

Fri🌧️ 17°💧 4.7 mm

Sat🌧️ 17°💧 4 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

Monday 7 Sept in Groningen, the forecast high is 26°C. Typical daytime temperatures at this time of year range from 17°C to 22°C, so it will be exceptionally warm. It is warmer than 95% of similar days.

Saturday 5 Sept

18°Cnear normal

usually 17°C–22°C

night: near normal rain: typical rainfall wind: stronger than usual

Sunday 6 Sept

20°Cnear normal

usually 17°C–22°C

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

Monday 7 Sept

26°Cexceptionally warm

usually 17°C–22°C

warmer than 95% of similar days

night: exceptionally warm rain: exceptionally wet wind: typical

Tuesday 8 Sept

17°Ccooler than usual

usually 17°C–22°C

cooler than 81% of similar days

night: near normal rain: more rain than usual wind: typical

Wednesday 9 Sept

16°Ccooler than usual

usually 17°C–22°C

cooler than 88% of similar days

night: cooler than usual rain: more rain than usual wind: stronger than usual

Thursday 10 Sept

19°Cnear normal

usually 17°C–22°C

night: warmer than usual rain: typical rainfall wind: typical

Friday 11 Sept

17°Ccooler than usual

usually 17°C–22°C

cooler than 71% of similar days

night: warmer than usual 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 20°C by day. The coolest year was 1986 (15°C) and the warmest was 2023 (28°C). The current forecast averages 19°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Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window.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.

Weather warnings - Groningen

No active weather warnings for Groningen (region: Groningen). The national weather service is not forecasting dangerous conditions.

14-day forecast - Groningen

Groningen - 14-day weather forecast infographic

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

Next 16 days · forecast

21°

around 15° at night · days with rain: 8

Weeks 3-4 · avg for September

19°

around 9° at night · rain chance 57%

Weeks 5-7 · avg for October

15°

around 7° at night · rain chance 68%

The 30 & 45-day outlook for Groningen: the next 16 days are a numerical forecast updated daily - on average 21° by day and 15° at night. Further out we rely on multi-year climate averages: around 19° in September, and about 15° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Groningen

Saturday5 September 2026

🌧️18°light rain

sunrise 06:49 · sunset 20:15 · night 12° · evening 17° · rain 0.81 mm · humidity 58% · wind 9 m/s · clouds 28%

Sunday6 September 2026

🌤️20°scattered clouds

sunrise 06:51 · sunset 20:12 · night 17° · evening 20° · rain 0.21 mm · humidity 48% · wind 4 m/s · clouds 41%

Monday7 September 2026

☁️26°overcast clouds

sunrise 06:53 · sunset 20:10 · night 15° · evening 22° · rain 9.15 mm · humidity 34% · wind 7 m/s · clouds 100%

Tuesday8 September 2026

🌧️17°light rain

sunrise 06:55 · sunset 20:07 · night 12° · evening 14° · rain 3.05 mm · humidity 83% · wind 6 m/s · clouds 100%

Wednesday9 September 2026

🌧️16°light rain

sunrise 06:56 · sunset 20:05 · night 10° · evening 14° · rain 4.25 mm · humidity 71% · wind 9 m/s · clouds 72%

Thursday10 September 2026

🌧️19°light rain

sunrise 06:58 · sunset 20:03 · night 13° · evening 15° · rain 1.44 mm · humidity 51% · wind 6 m/s · clouds 87%

Friday11 September 2026

🌧️17°light rain

sunrise 07:00 · sunset 20:00 · night 14° · evening 13° · rain 4.74 mm · humidity 79% · wind 8 m/s · clouds 94%

Saturday12 September 2026

🌧️17°light rain

sunrise 07:01 · sunset 19:58 · night 12° · evening 14° · rain 3.96 mm · humidity 71% · wind 8 m/s · clouds 100%

Sunday13 September 2026

☁️19°overcast clouds

sunrise 07:03 · sunset 19:55 · night 14° · evening 16° · rain 2.4 mm · humidity 49% · wind 6 m/s · clouds 98%

Monday14 September 2026

🌧️19°light rain

sunrise 07:05 · sunset 19:53 · night 10° · evening 13° · rain 0.39 mm · humidity 53% · wind 4 m/s · clouds 97%

Tuesday15 September 2026

☁️22°overcast clouds

sunrise 07:07 · sunset 19:50 · night 14° · evening 19° · rain 0.33 mm · humidity 41% · wind 3 m/s · clouds 91%

Wednesday16 September 2026

☁️19°broken clouds

sunrise 07:08 · sunset 19:48 · night 14° · evening 17° · rain 0.15 mm · humidity 52% · wind 7 m/s · clouds 68%

Thursday17 September 2026

🌧️21°light rain

sunrise 07:10 · sunset 19:46 · night 14° · evening 15° · rain 2.31 mm · humidity 58% · wind 8 m/s · clouds 96%

Friday18 September 2026

☁️24°broken clouds

sunrise 07:12 · sunset 19:43 · night 19° · evening 20° · rain 0.3 mm · humidity 44% · wind 7 m/s · clouds 63%

Saturday19 September 2026

☀️29°clear sky

sunrise 07:14 · sunset 19:41 · night 21° · evening 23° · humidity 38% · wind 6 m/s · clouds 90%

Sunday20 September 2026

☁️32°broken clouds

sunrise 07:15 · sunset 19:38 · night 25° · evening 25° · humidity 31% · wind 5 m/s · clouds 77%

UV index in Groningen - is it safe to sunbathe?

Today the UV index in Groningen is 4 (moderate) - unprotected fair skin can burn in about 50 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.

Pollen in Groningen - info for allergy sufferers

Today grasses pollen is highest in Groningen - about 7 grains/m³, low level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.

Air quality and smog in Groningen

Air quality in Groningen is currently very good. Fine particulate PM2.5: 3.8 µg/m³, PM10: 11.3 µg/m³.

City	PM2.5 (µg/m³)	PM10 (µg/m³)	Air quality
Groningen	3.8	11.3	very good

Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 03:00).

Groningen weather through the year

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

Upcoming public holidays in Netherlands: Christmas Day — 25 December · St. Stephen's Day — 26 December · New Year's Day — 1 January.

Nearby and related places

AmsterdamHaarlemCuraçaoMaastrichtArubaRotterdam

FAQ - Groningen weather

What is the weather like in Groningen today?

Today it is about 18° during the day and 12° at night, light rain.

How far ahead can I check the forecast for Groningen?

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.