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
As September begins, there is a minor decrease in the average high-temperature, softly falling from a pleasant 20.4°C (68.7°F) in August to a refreshing 15.9°C (60.6°F). During the month of September, the temperature in Kopli falls to an average of 10.5°C (50.9°F).Humidity
In September, the average relative humidity is 80%.Rainfall
In September, in Kopli, the rain falls for 18.9 days. Throughout September, 51mm (2.01") of precipitation is accumulated. Throughout the year, there are 176.6 rainfall days, and 578mm (22.76") of precipitation is accumulated.Snowfall
In Kopli, snow does not fall in June through September.Daylight
In Kopli, Estonia, the average length of the day in September is 12h and 51min.On the first day of the month, sunrise is at 06:18 and sunset at 20:23. On the last day of September, in Kopli, sunrise is at 07:25 and sunset at 18:56 EEST.
Sunshine
In September, the average sunshine in Kopli is 7.3h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 3 during September leads to these instructions:
Take precautions - Protection against skin and eye damage is obliged. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What are September temperatures in Kopli?
What is the average humidity in September in Kopli?
How much does it rain in Kopli in September?
When it does not snow in Kopli?
Does it snow in Kopli in September?
What is the average length of the day in September in Kopli?
When are sunrise and sunset in September in Kopli?
How long on average sun shines in September in Kopli?
How high is the UV index in September in Kopli?
Average temperature in September
Kopli, 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
Kopli, 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
Kopli, 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
Kopli, 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
Kopli, 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
Kopli, 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
Kopli, 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
Kopli, 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
Kopli, 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 2min
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
Kopli, 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
Kopli, 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
Kopli, 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
Kopli, 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).
Kopli, Estonia
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