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
In September, the meteorological conditions change slightly, with the average high-temperature moving from a refreshing 19.7°C (67.5°F) in August to a mild 15.2°C (59.4°F). Maintaining close parity with daytime warmth, the average nocturnal temperature in Ongassaare, Estonia, during September stays at a fresh 11.2°C (52.2°F).Humidity
The average relative humidity in September is 79%.Rainfall
In September, in Ongassaare, the rain falls for 17.2 days. Throughout September, 43mm (1.69") of precipitation is accumulated. Throughout the year, in Ongassaare, there are 151.8 rainfall days, and 510mm (20.08") of precipitation is accumulated.Snowfall
In Ongassaare, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 50min.On the first day of September in Ongassaare, sunrise is at 06:08 and sunset at 20:11. On the last day of the month, sunrise is at 07:14 and sunset at 18:46 EEST.
Sunshine
In September, the average sunshine in Ongassaare is 7.2h.UV index
In September, the average daily maximum UV index in Ongassaare is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The UV index of 3 during September translates into the following guidance:
Undertake protective steps - Recommendations to avoid sunburn are issued. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What is the average September temperature in Ongassaare?
What is the average humidity in September in Ongassaare?
How much does it rain in Ongassaare in September?
When it does not snow in Ongassaare?
Does it snow in Ongassaare in September?
What is the average length of the day in September in Ongassaare?
When are sunrise and sunset in September in Ongassaare?
How long on average sun shines in September in Ongassaare?
What is the UV index intensity in September in Ongassaare?
Average temperature in September
Ongassaare, Estonia
- Average high temperature in September: 15.2°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-2.8°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is July (14.8°C).
The coldest months (with the lowest average low temperature) are January and February (-6°C).
Average pressure in September
Ongassaare, Estonia
- Average pressure in September: 1014.1mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1010mbar).
Average wind speed in September
Ongassaare, Estonia
- Average wind speed in September: 17.4km/h
The windiest month (with the highest average wind speed) is December (20.8km/h).
The calmest month (with the lowest average wind speed) is May (13.4km/h).
Average humidity in September
Ongassaare, Estonia
- Average humidity in September: 79%
The month with the highest relative humidity is February (92%).
The months with the lowest relative humidity are May and June (73%).
Average rainfall in September
Ongassaare, Estonia
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is August (65mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in September
Ongassaare, Estonia
- Average rainfall days in September: 17.2 days
The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Ongassaare, Estonia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (164mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Ongassaare, Estonia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ongassaare, Estonia
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in September: 7h and 1min
The month with the most sunshine is June (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).
Average sunshine days in September
Ongassaare, Estonia
- Average sunshine days in September: 9.8 days
The month with the most sunshine days is May (16 days).
The month with the least sunshine days is December (4.6 days).
Average UV index in September
Ongassaare, 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
Ongassaare, Estonia
- Average cloud cover in September: 51
The month with the most cloud cover is December (Cloud cover 81).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in September
Ongassaare, Estonia
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is February (7km).
Ongassaare, Estonia
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