South Holland (Rotterdam)
September
Weather in South Holland for September 2026
Your guide to South Holland weather in September - trends and predictions
Until now, September 2026 in South Holland is slightly cooler than the historical average by 1.4 °C.
Expect cooler weather in the next days in South Holland with the forecast suggesting a temperature of 22.2 °C, lower than the historical average.
In general, the average temperature in South Holland at the beginning of September is 24.3 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 22.4 °C by the end of September.
The climate of South Holland in September is notably wet, with an average of 13 rainy days, and a total of 88.6 mm of precipitation.
Temperatures
Rain 🌧️
17
Dry days
13
Rainy days
0
Snow days
21°/13°
Temperatures
20 km/h
Avg max wind
70 %
Avg humidity
South Holland Weather September
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What’s the Weather Like in South Holland This September?
Discover the average temperatures and weather trends across South Holland’s cities this September.
Temperatures trend during September in South Holland
See the weather trend as well as the moving average line
September weather in South Holland day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 23° /14° | 1.3 mm | 5 | |
| 2 Sept. |  Fog | 24° /15° | 2.8 mm | 4 | |
| 3 Sept. |  Partly cloudy | 23° /15° | 1.9 mm | 4 | |
| 4 Sept. | Light rain shower | 22° /15° | 1.8 mm | 4 | |
| 5 Sept. |  Sunny | 24° /14° | 0.3 mm | 6 | |
| 6 Sept. | Sunny | 26° /14° | 2.2 mm | 5 | |
| 7 Sept. | Sunny | 28° /15° | 0 mm | 6 | |
| 8 Sept. | Patchy rain possible | 23° /15° | 5.5 mm | 5 | |
| 9 Sept. |  Cloudy | 21° /14° | 3.2 mm | 4 | |
| 10 Sept. | Sunny | 23° /13° | 1.9 mm | 5 | |
| 11 Sept. | Light rain shower | 20° /13° | 5.8 mm | 4 | |
| 12 Sept. | Partly cloudy | 19° /12° | 8.8 mm | 4 | |
| 13 Sept. | Light rain shower | 18° /11° | 7 mm | 4 | |
| 14 Sept. | Patchy rain possible | 20° /11° | 1.3 mm | 4 | |
| 15 Sept. | Partly cloudy | 22° /13° | 1.3 mm | 4 | |
| 16 Sept. | Partly cloudy | 19° /13° | 2.2 mm | 4 | |
| 17 Sept. |  Overcast | 20° /13° | 2.1 mm | 4 | |
| 18 Sept. | Light rain shower | 21° /14° | 2.7 mm | 4 | |
| 19 Sept. | Patchy rain possible | 23° /14° | 1.2 mm | 4 | |
| 20 Sept. | Patchy rain possible | 22° /14° | 1.6 mm | 4 | |
| 21 Sept. | Light rain shower | 20° /12° | 3.7 mm | 4 | |
| 22 Sept. | Patchy rain possible | 18° /11° | 2.5 mm | 4 | |
| 23 Sept. | Light rain shower | 18° /12° | 4.1 mm | 3 | |
| 24 Sept. | Overcast | 17° /10° | 0.4 mm | 3 | |
| 25 Sept. | Sunny | 23° /10° | 0 mm | 3.3 | |
| 26 Sept. | Overcast | 20° /14° | 0 mm | 2.6 | |
| 27 Sept. | Overcast | 23° /13° | 0 mm | 2.9 | |
| 28 Sept. | Overcast | 24° /15° | 0 mm | 2.5 | |
| 29 Sept. | Overcast | 23° /14° | 0 mm | 5 | |
| 30 Sept. | Overcast | 27° /17° | 0 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for South Holland in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the South Holland forecast closer to your planned date for the most up-to-date weather information.
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South Holland in September - FAQ
What are the expected maximum and minimum temperatures in South Holland during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in South Holland during September?
Moderate rainfall is anticipated in South Holland during September, with a total of 88.6 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in South Holland during September?
The average wind speed in South Holland during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in South Holland
Explore the daily rainfall trends and prepare for South Hollands September weather 💧
Typically, South Holland has 13 rainy days in September with a total of 88.6 mm of rainfall.
UV exposure in South Holland during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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