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 sea temperature 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
September in Sillamäe reveals a small adjustment in temperature, transitioning from an average high of an enjoyable 19.7°C (67.5°F) in August to a still refreshing 15.2°C (59.4°F). Throughout September, Sillamäe observes a steady low-temperature average of 11.2°C (52.2°F), reflecting a minor dip from daytime highs.Humidity
In Sillamäe, the average relative humidity in September is 79%.Rainfall
In September, in Sillamäe, the rain falls for 17.2 days. Throughout September, 43mm (1.69") of precipitation is accumulated. Throughout the year, there are 151.8 rainfall days, and 510mm (20.08") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Sea temperature
In September, the average sea temperature is 15.3°C (59.5°F).Note: Swimming is not a pleasant activity for most individuals in 15.3°C (59.5°F). Breathing becomes increasingly challenging to control as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in September in Sillamäe is 12h and 51min.On the first day of the month, sunrise is at 06:06 and sunset at 20:10. On the last day of September, sunrise is at 07:12 and sunset at 18:44 EEST.
Sunshine
The average sunshine in September in Sillamäe, Estonia, is 7.2h.UV index
The average daily maximum UV index in September in Sillamäe is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
What is the temperature in September in Sillamäe?
What is the average humidity in September in Sillamäe?
How many days does it rain in September in Sillamäe?
When it does not snow in Sillamäe?
Does it snow in Sillamäe in September?
How cold is the water in September in Sillamäe?
What is the average length of the day in September in Sillamäe?
When are sunrise and sunset in September in Sillamäe?
How many hours of sunshine does Sillamäe have in September?
What is the UV index intensity in September in Sillamäe?
Average temperature in September
Sillamäe, 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
Sillamäe, 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
Sillamäe, 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
Sillamäe, 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
Sillamäe, 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
Sillamäe, 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
Sillamäe, 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
Sillamäe, 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 sea temperature in September
Sillamäe, Estonia
- Average sea temperature in September: 15.3°C
The best month for swimming (with the highest average sea temperature) is July (19.9°C).
The coldest month (with the lowest average sea temperature) is February (-0.6°C).
Average daylight in September /
Average sunshine in September
Sillamäe, 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 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
Sillamäe, 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
Sillamäe, 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
Sillamäe, 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
Sillamäe, 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).
Sillamäe, Estonia
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