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 a pleasant 20.4°C (68.7°F) in August to a refreshing 16°C (60.8°F). During September nights, Mustamäe records an average temperature of 10.5°C (50.9°F).Humidity
In September, the average relative humidity in Mustamäe is 80%.Rainfall
In Mustamäe, in September, during 19.3 rainfall days, 53mm (2.09") of precipitation is typically accumulated. In Mustamäe, during the entire year, the rain falls for 177 days and collects up to 580mm (22.83") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Mustamäe, the average length of the day in September is 12h and 51min.On the first day of the month, sunrise is at 06:19 and sunset at 20:23. On the last day of September, sunrise is at 07:25 and sunset at 18:56 EEST.
Sunshine
The average sunshine in September is 7.1h.UV index
In Mustamäe, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 3 during September translates into the following guidance:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Mustamäe in September?
What is the average humidity in September in Mustamäe?
How many days does it rain in September in Mustamäe?
When it does not snow in Mustamäe?
Does it snow in Mustamäe in September?
What is the average length of the day in September in Mustamäe?
What time are sunrise and sunset in September in Mustamäe?
How long on average sun shines in September in Mustamäe?
What is the UV index intensity in September in Mustamäe?
Average temperature in September
Mustamäe, Estonia
- Average high temperature in September: 16°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
Mustamäe, 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 (1009.1mbar).
Average wind speed in September
Mustamäe, 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
Mustamäe, 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
Mustamäe, Estonia
- Average rainfall in September: 53mm
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
Mustamäe, Estonia
- Average rainfall days in September: 19.3 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
Mustamäe, 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
Mustamäe, 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
Mustamäe, 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 July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).
Average sunshine days in September
Mustamäe, Estonia
- Average sunshine days in September: 7.8 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
Mustamäe, 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
Mustamäe, 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
Mustamäe, 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).
