Groningen Weather: September
 |
Average Day Temperature: | 66.8°F |
|
Average Night Temperature: | 55.2°F |
|
Sea Water Temperature: | 63.7°F |
|
Number of Sunny Days: | 8 days |
| Sunshine Hours: | 11.7 - 13.7 hours | |
|
Number of Rainy Days: | 3 days |
| Precipitation Totals: | 1.7 in | |
| detailed information | ||
forecast
| Groningen |
Temperature
| Groningen |
Air Temperature in September, °F
The highest day temperature in September 2025 was 80°F. The lowest night temperature was 44°F. The average values for day and night temperatures during September were 66.6°F и 55.4°F respectivly.
Groningen Water Sea Temperature in September, °F
The average sea surface temperature in September 2025 for Groningen was 62.6°F. The maximum and minimum values were 57.0°F and 67.0°F respectively.
You can expect various weather conditions during September. Be ready for sunny, cloudy or even gloomy days.
Precipitation Totals in September, in
Precipitation total in September for Groningen is 1.7 in.
The average wind speed in September is 9.3 mph. It makes September one of the most windless months of the year for Groningen.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Groningen in September is 6.6 hours.
Groningen on the Weather Map
| Amsterdam |  |
+36 |
| Aruba |  |
+84 |
| Breda | |
+36 |
| Eindhoven | |
+36 |
| Groningen | |
+40 |
| Hague | |
+40 |
| Maastricht |  |
+38 |
| Rotterdam | |
+36 |
| Utrecht | |
+36 |
| 1200 |  |
44°F | N 6 mph |
| 1500 | |
44°F | N 6 mph |
| 1800 |  |
38°F | N 7 mph |
| 2100 | |
38°F | N 10 mph |
| 0000 |  |
38°F | N 14 mph |
| 0300 |  |
40°F | N 17 mph |
| 0600 | |
40°F | N 20 mph |
| 0900 | |
42°F | N 19 mph |