Groningen Weather in September
September in Groningen sees daytime temperatures around 20°C (68°F) and lows of 11°C (52°F) at night. With around 77 mm (3 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Groningen in September
Expect around 17 days of rain based on historical data, with 77 mm (3 in) average. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Groningen in September
Groningen in September has excellent weather. Days reach 20°C (68°F) and nights cool to 11°C (52°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 11°C (52°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Groningen in September
The month brings about 152 hours of sunlight, offering a comfortable mix of sun and overcast.
Wind Speed in Groningen in September
In September, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Groningen.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the Netherlands, check out our Groningen's climate page.
Groningen Temperature in September
Min Temperature
11°C (52°F)
Max Temperature
20°C (68°F)
Chance of Rain
57%
Precipitation
77 mm (3 in)
Rainy days
17 days
Humidity
87% *
Windspeed
4 m/s (8 knots) *
Sunshine
152 hours *
Percentage Sunshine
38% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Groningen typically stay consistent throughout September, with daily highs averaging around 20°C (68°F). Nights are cool, with lows typically ranging from 9°C (48°F) to 12°C (54°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Groningen in September
Browse day-by-day weather records for Groningen spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Groningen historical weather extremes in September
Based on 49 years of weather observations in Groningen between 1976 and 2025, these are the recorded extremes.
- The hottest September day on record in Groningen reached 30°C (86°F) (September 13, 2016).
- On September 30, 1995, Groningen saw its coldest September day with temperatures maxing out at 11°C (52°F).
- The lowest overnight temperature recorded in September was 1°C (34°F) (September 13, 1986).
Best Places in the Netherlands in September
Find out more about the weather in the Netherlands and which places have the best travel conditions in this month. See all of the Netherlands in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Groningen in September
For Groningen in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Groningen in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the Netherlands, check out our Groningen's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Groningen climate overview or explore weather in the Netherlands.
