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
September is characterized by a mild reduction in the average high-temperature, from an enjoyable 19.5°C (67.1°F) in August to a moderate 15.5°C (59.9°F). An average low-temperature of 12.1°C (53.8°F) is witnessed throughout the month of September in Osmussaare, a mere drop from the daytime peak.Humidity
In September, the average relative humidity in Osmussaare is 78%.Rainfall
In September, in Osmussaare, Estonia, the rain falls for 14.7 days. Throughout September, 42mm (1.65") of precipitation is accumulated. In Osmussaare, during the entire year, the rain falls for 153.7 days and collects up to 471mm (18.54") of precipitation.Snowfall
In Osmussaare, Estonia, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 50min.On the first day of the month, sunrise is at 06:24 and sunset at 20:28. On the last day of September, in Osmussaare, sunrise is at 07:30 and sunset at 19:02 EEST.
Sunshine
In September, the average sunshine in Osmussaare is 7.7h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 3 during September leads to these instructions:
Take precautions - Protection against sun damage is advised. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Osmussaare?
What is the average humidity in September in Osmussaare?
How many days does it rain in September in Osmussaare?
When it does not snow in Osmussaare?
Does it snow in Osmussaare in September?
What is the average length of the day in September in Osmussaare?
When are sunrise and sunset in September in Osmussaare?
How many hours of sunshine does Osmussaare have in September?
How high is the UV index in September in Osmussaare?
Average temperature in September
Osmussaare, Estonia
- Average high temperature in September: 15.5°C
The warmest month (with the highest average high temperature) is July (19.6°C).
The month with the lowest average high temperature is February (-0.9°C).
- Average low temperature in September: 12.1°C
The months with the highest average low temperature are July and August (15.3°C).
The coldest month (with the lowest average low temperature) is February (-3.6°C).
Average pressure in September
Osmussaare, Estonia
- Average pressure in September: 1013.8mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).
Average wind speed in September
Osmussaare, Estonia
- Average wind speed in September: 20.7km/h
The windiest month (with the highest average wind speed) is December (26.1km/h).
The calmest month (with the lowest average wind speed) is May (16.3km/h).
Average humidity in September
Osmussaare, Estonia
- Average humidity in September: 78%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are May and August (75%).
Average rainfall in September
Osmussaare, Estonia
- Average rainfall in September: 42mm
The wettest month (with the highest rainfall) is December (56mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Osmussaare, Estonia
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is November (18 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in September
Osmussaare, Estonia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (120mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Osmussaare, Estonia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Osmussaare, Estonia
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in September
Osmussaare, Estonia
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is May (18 days).
The month with the least sunshine days is December (3.1 days).
Average UV index in September
Osmussaare, Estonia
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Osmussaare, Estonia
- Average cloud cover in September: 46
The month with the most cloud cover is December (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Osmussaare, Estonia
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February and December (8km).
