September weather forecastKoki, Estonia
September
Weather in September
September, the first month of the autumn in Koki, is still a mild month, with an average temperature ranging between min 13.5°C (56.3°F) and max 15.3°C (59.5°F).Temperature
The beginning of September subtly marks a decrease in the average high-temperature, transitioning from an enjoyable 18.8°C (65.8°F) in August to a mild 15.3°C (59.5°F). Koki's nocturnal readings in September exhibit minimal variation from the daytime temperatures, averaging at a still moderate 13.5°C (56.3°F).Humidity
In Koki, the average relative humidity in September is 78%.Rainfall
In September, the rain falls for 14 days. Throughout September, 42mm (1.65") of precipitation is accumulated. In Koki, during the entire year, the rain falls for 153.3 days and collects up to 470mm (18.5") of precipitation.Snowfall
June through September are months without snowfall in Koki, Estonia.Daylight
In September, the average length of the day is 12h and 49min.On the first day of the month, sunrise is at 06:32 and sunset at 20:30. On the last day of September, sunrise is at 07:34 and sunset at 19:07 EEST.
Sunshine
In September, the average sunshine is 7.7h.UV index
In Koki, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Koki, Estonia
- Average high temperature in September: 15.3°C
The warmest month (with the highest average high temperature) is August (18.8°C).
The month with the lowest average high temperature is February (0.4°C).
- Average low temperature in September: 13.5°C
The month with the highest average low temperature is August (16.6°C).
The coldest month (with the lowest average low temperature) is February (-2°C).
Average pressure in September
Koki, Estonia
- Average pressure in September: 1014.1mbar
The month with the highest atmospheric pressure is May (1015.3mbar).
The month with the lowest atmospheric pressure is December (1009mbar).
Average wind speed in September
Koki, Estonia
- Average wind speed in September: 23.8km/h
The windiest month (with the highest average wind speed) is December (29.8km/h).
The calmest month (with the lowest average wind speed) is May (18.4km/h).
Average humidity in September
Koki, Estonia
- Average humidity in September: 78%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Koki, Estonia
- Average rainfall in September: 42mm
The wettest month (with the highest rainfall) is December (59mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in September
Koki, Estonia
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is November (17.5 days).
The month with the least rainy days is February (8.4 days).
Average snowfall in September
Koki, Estonia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (109mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Koki, Estonia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Koki, Estonia
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 6min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in September: 7h and 42min
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 54min).
Average sunshine days in September
Koki, Estonia
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is May (20 days).
The month with the least sunshine days is December (3.4 days).
Average UV index in September
Koki, Estonia
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January and March (UV index 1).
Average cloud cover in September
Koki, Estonia
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Koki, 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 and December (8km).
