September weather forecastPoonhaven, Netherlands
September
Weather in September
September, the first month of the autumn in Poonhaven, is also an enjoyable month, with an average temperature fluctuating between 19°C (66.2°F) and 12.8°C (55°F).Temperature
Poonhaven experiences an average high-temperature of a refreshing 19°C (66.2°F) with the onset of September, subtly varied from August's 21.9°C (71.4°F). Poonhaven sees an average low-temperature of 12.8°C (55°F) during September.Humidity
In Poonhaven, the average relative humidity in September is 77%.Rainfall
In Poonhaven, Netherlands, during September, the rain falls for 8.8 days and regularly aggregates up to 12mm (0.47") of precipitation. In Poonhaven, during the entire year, the rain falls for 131.1 days and collects up to 188mm (7.4") of precipitation.Snowfall
In Poonhaven, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 38min.On the first day of September in Poonhaven, sunrise is at 06:58 and sunset at 20:30. On the last day of the month, sunrise is at 07:44 and sunset at 19:23 CEST.
Sunshine
The average sunshine in September is 7.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Undertake precautions - It is suggested to shield oneself from sunburn. Around midday, solar radiation is most harmful; hence, exposure should be limited. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Poonhaven, Netherlands
- Average high temperature in September: 19°C
The warmest month (with the highest average high temperature) is August (21.9°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 12.8°C
The month with the highest average low temperature is August (15.1°C).
The coldest month (with the lowest average low temperature) is February (2.4°C).
Average pressure in September
Poonhaven, Netherlands
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1011.8mbar).
Average wind speed in September
Poonhaven, Netherlands
- Average wind speed in September: 14.7km/h
The windiest month (with the highest average wind speed) is December (20.2km/h).
The calmest month (with the lowest average wind speed) is July (13.8km/h).
Average humidity in September
Poonhaven, Netherlands
- Average humidity in September: 77%
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Poonhaven, Netherlands
- Average rainfall in September: 12mm
The wettest months (with the highest rainfall) are July and December (20mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in September
Poonhaven, Netherlands
- Average rainfall days in September: 8.8 days
The months with the highest number of rainy days are July and December (12.4 days).
The month with the least rainy days is September (8.8 days).
Average snowfall in September
Poonhaven, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (12mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Poonhaven, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Poonhaven, Netherlands
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Poonhaven, Netherlands
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is April (17.8 days).
The month with the least sunshine days is June (14.2 days).
Average UV index in September
Poonhaven, Netherlands
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Poonhaven, Netherlands
- Average cloud cover in September: 41
The month with the most cloud cover is December (Cloud cover 63).
The months with the least cloud cover are April and August (Cloud cover 38).
Average visibility in September
Poonhaven, Netherlands
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).





