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 decrease in the average high-temperature is observed during September, shifting from a pleasant 21.5°C (70.7°F) in August to an enjoyable 16.1°C (61°F). Throughout September, Arjassaare records an average temperature of 7.9°C (46.2°F) at night.Humidity
In September, the average relative humidity is 83%.Rainfall
In Arjassaare, in September, during 17.3 rainfall days, 37mm (1.46") of precipitation is typically accumulated. In Arjassaare, Estonia, during the entire year, the rain falls for 168.2 days and collects up to 528mm (20.79") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Arjassaare, the average length of the day in September is 12h and 49min.On the first day of the month, sunrise is at 06:16 and sunset at 20:17. On the last day of September, in Arjassaare, sunrise is at 07:20 and sunset at 18:53 EEST.
Sunshine
In September, the average sunshine is 6.9h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 3 during September leads to these instructions:
Heed the precautions - Suggestions to avoid sunburn are made. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Stay sun-safe with clothing that is both closely woven and worn loosely.
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 much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Arjassaare have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Arjassaare have in September?
What is the UV index reading in September?
Average temperature in September
Arjassaare, Estonia
- Average high temperature in September: 16.1°C
The warmest month (with the highest average high temperature) is July (22.9°C).
The month with the lowest average high temperature is January (-3°C).
- Average low temperature in September: 7.9°C
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-7.5°C).
Average pressure in September
Arjassaare, Estonia
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is May (1015.2mbar).
The month with the lowest atmospheric pressure is December (1009.9mbar).
Average wind speed in September
Arjassaare, Estonia
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is December (13.2km/h).
The calmest month (with the lowest average wind speed) is August (10.4km/h).
Average humidity in September
Arjassaare, Estonia
- Average humidity in September: 83%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Arjassaare, Estonia
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is July (60mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in September
Arjassaare, Estonia
- Average rainfall days in September: 17.3 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in September
Arjassaare, Estonia
- Average snowfall in September: 0mm
The month with the highest snowfall is February (215mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Arjassaare, Estonia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Arjassaare, Estonia
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 18min).
The month with the shortest days is December (Average daylight: 6h and 24min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).
Average sunshine days in September
Arjassaare, Estonia
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is May (13.7 days).
The month with the least sunshine days is December (5.3 days).
Average UV index in September
Arjassaare, Estonia
- Average UV index in September: 3
The months with the highest UV index are June and 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
Arjassaare, Estonia
- Average cloud cover in September: 57
The month with the most cloud cover is December (Cloud cover 81).
The month with the least cloud cover is May (Cloud cover 41).
Average visibility in September
Arjassaare, Estonia
- Average visibility in September: 8km
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January and February (6km).
