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
Weather in September
Temperature
The commencement of September indicates a gentle shift in the average high-temperature, receding from August's enjoyable 16.6°C (61.9°F) to a cool 12.5°C (54.5°F). In Sandön, September is characterized by an average low-temperature of 8.6°C (47.5°F), indicating a minor drop from daytime highs.Humidity
In Sandön, Sweden, the average relative humidity in September is 79%.Rainfall
In September, the rain falls for 12.5 days. Throughout September, 36mm (1.42") of precipitation is accumulated. In Sandön, Sweden, during the entire year, the rain falls for 110.8 days and collects up to 409mm (16.1") of precipitation.Snowfall
June through September are months without snowfall in Sandön.Daylight
In Sandön, the average length of the day in September is 13h and 5min.On the first day of the month, sunrise is at 05:10 and sunset at 19:51. On the last day of September, sunrise is at 06:39 and sunset at 18:01 CEST.
Sunshine
The average sunshine in September in Sandön is 7.3h.UV index
The average daily maximum UV index in September in Sandön is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 3 in September translates into these instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
What is the average September temperature in Sandön?
What is the average humidity in September in Sandön?
How many days does it rain in September in Sandön?
When it does not snow in Sandön?
Does it snow in Sandön in September?
How many hours of daylight does Sandön have in September?
What time are sunrise and sunset in September in Sandön?
How many hours of sunshine does Sandön have in September?
How high is the UV index in September in Sandön?
Average temperature in September
Sandön, Sweden
- Average high temperature in September: 12.5°C
The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is January (-5.7°C).
- Average low temperature in September: 8.6°C
The month with the highest average low temperature is July (13°C).
The coldest month (with the lowest average low temperature) is February (-10.6°C).
Average pressure in September
Sandön, Sweden
- Average pressure in September: 1010.9mbar
The month with the highest atmospheric pressure is May (1014mbar).
The month with the lowest atmospheric pressure is December (1004.8mbar).
Average wind speed in September
Sandön, Sweden
- Average wind speed in September: 16.4km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is April (13km/h).
Average humidity in September
Sandön, Sweden
- Average humidity in September: 79%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is June (70%).
Average rainfall in September
Sandön, Sweden
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is December (46mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Sandön, Sweden
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is August (13.9 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in September
Sandön, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is December (178mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sandön, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sandön, Sweden
- Average daylight in September: 13h and 1min
The month with the longest days is June (Average daylight: 22h and 24min).
The month with the shortest days is December (Average daylight: 3h and 30min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 18min).
Average sunshine days in September
Sandön, Sweden
- Average sunshine days in September: 15.1 days
The months with the most sunshine days are June and October (16.5 days).
The month with the least sunshine days is December (11.6 days).
Average UV index in September
Sandön, 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, February, March, November and December (UV index 1).
Average cloud cover in September
Sandön, Sweden
- Average cloud cover in September: 47
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in September
Sandön, Sweden
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March and April (7km).
Sandön, Sweden
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