September weather forecastKiiu, Estonia
September
Weather in September
September, the first month of the autumn in Kiiu, is still a mild month, with an average temperature ranging between max 15.9°C (60.6°F) and min 10.5°C (50.9°F).Temperature
Kiiu's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's pleasant 20.4°C (68.7°F) to a refreshing 15.9°C (60.6°F). Throughout September, Kiiu witnesses a nighttime temperature average of 10.5°C (50.9°F).Humidity
In Kiiu, the average relative humidity in September is 80%.Rainfall
In Kiiu, in September, during 18.9 rainfall days, 51mm (2.01") of precipitation is typically accumulated. Throughout the year, in Kiiu, Estonia, there are 176.6 rainfall days, and 578mm (22.76") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 51min.On the first day of September, sunrise is at 06:16 and sunset at 20:20. On the last day of the month, sunrise is at 07:22 and sunset at 18:54 EEST.
Sunshine
In Kiiu, the average sunshine in September is 7.3h.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 UV index of 3 during September leads to these advisories:
Heed the precautions - Suggestions to avoid sunburn are made. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kiiu, Estonia
- Average high temperature in September: 15.9°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (-1.9°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is July (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (-5.3°C).
Average pressure in September
Kiiu, Estonia
- Average pressure in September: 1013.9mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).
Average wind speed in September
Kiiu, Estonia
- Average wind speed in September: 16.1km/h
The windiest month (with the highest average wind speed) is December (19.6km/h).
The calmest month (with the lowest average wind speed) is May (13.2km/h).
Average humidity in September
Kiiu, Estonia
- Average humidity in September: 80%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Kiiu, Estonia
- Average rainfall in September: 51mm
The wettest month (with the highest rainfall) is July (69mm).
The driest month (with the least rainfall) is April (30mm).
Average rainfall days in September
Kiiu, Estonia
- Average rainfall days in September: 18.9 days
The months with the highest number of rainy days are July and August (19.6 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in September
Kiiu, Estonia
- Average snowfall in September: 0mm
The month with the highest snowfall is February (178mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Kiiu, Estonia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Kiiu, Estonia
- Average daylight in September: 12h and 48min
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 18min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).
Average sunshine days in September
Kiiu, Estonia
- Average sunshine days in September: 7.9 days
The month with the most sunshine days is May (13.6 days).
The month with the least sunshine days is December (3.9 days).
Average UV index in September
Kiiu, Estonia
- 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
Kiiu, Estonia
- Average cloud cover in September: 49
The month with the most cloud cover is December (Cloud cover 78).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in September
Kiiu, Estonia
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March and December (8km).





