Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
A modest decline in the average high-temperature is seen during September, decreasing from 17.4°C (63.3°F) in August to a still refreshing 13.7°C (56.7°F). Throughout September, a minimal difference from peak daytime temperatures is noted, marking a steady low-temperature average of 9.5°C (49.1°F).Humidity
The average relative humidity in September is 78%.Rainfall
In September, the rain falls for 8.8 days. Throughout September, 23mm (0.91") of precipitation is accumulated. Throughout the year, there are 93.9 rainfall days, and 304mm (11.97") of precipitation is accumulated.Snowfall
In Geresta, snow does not fall in June through September.Daylight
In Geresta, the average length of the day in September is 12h and 58min.On the first day of the month, sunrise is at 05:36 and sunset at 20:00. On the last day of September, sunrise is at 06:55 and sunset at 18:21 CEST.
Sunshine
In Geresta, the average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Geresta have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Geresta, Sweden
- Average high temperature in September: 13.7°C
The warmest month (with the highest average high temperature) is July (18.2°C).
The month with the lowest average high temperature is February (-1.8°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is February (-5°C).
Average pressure in September
Geresta, Sweden
- Average pressure in September: 1011.8mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1005.8mbar).
Average wind speed in September
Geresta, Sweden
- Average wind speed in September: 15.7km/h
The windiest month (with the highest average wind speed) is December (18.8km/h).
The calmest months (with the lowest average wind speed) are May and August (13.9km/h).
Average humidity in September
Geresta, Sweden
- Average humidity in September: 78%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is June (71%).
Average rainfall in September
Geresta, Sweden
- Average rainfall in September: 23mm
The wettest months (with the highest rainfall) are January and December (36mm).
The driest months (with the least rainfall) are April and June (15mm).
Average rainfall days in September
Geresta, Sweden
- Average rainfall days in September: 8.8 days
The month with the highest number of rainy days is July (10.4 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Geresta, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (150mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Geresta, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Geresta, Sweden
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 6min).
The month with the shortest days is December (Average daylight: 4h and 54min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is June (Average sunshine: 13h and 6min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in September
Geresta, Sweden
- Average sunshine days in September: 19.9 days
The month with the most sunshine days is June (21.8 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in September
Geresta, Sweden
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in September
Geresta, Sweden
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in September
Geresta, Sweden
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September and October (10km).
The month with the lowest visibility is January (8km).
