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
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from an enjoyable 19°C (66.2°F) to a still refreshing 15.7°C (60.3°F). During September, the nighttime temperatures align closely with the daytime averages, measuring a still mild 13.3°C (55.9°F).Humidity
In Mässa, Estonia, the average relative humidity in September is 77%.Rainfall
In Mässa, during September, the rain falls for 14.3 days and regularly aggregates up to 31mm (1.22") of precipitation. Throughout the year, there are 129.6 rainfall days, and 278mm (10.94") of precipitation is accumulated.Snowfall
In Mässa, snow does not fall in June through September.Daylight
In Mässa, the average length of the day in September is 12h and 48min.On the first day of the month, sunrise is at 06:32 and sunset at 20:29. On the last day of September, in Mässa, sunrise is at 07:34 and sunset at 19:07 EEST.
Sunshine
In Mässa, the average sunshine in September is 7.8h.UV index
In Mässa, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 3 in September translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Mässa?
What is the average humidity in September in Mässa?
How much does it rain in Mässa in September?
When it does not snow in Mässa?
Does it snow in Mässa in September?
What is the average length of the day in September in Mässa?
When is the sunrise / sunset in September in Mässa?
How long on average sun shines in September in Mässa?
How high is the UV index in September in Mässa?
Average temperature in September
Mässa, Estonia
- Average high temperature in September: 15.7°C
The warmest month (with the highest average high temperature) is August (19°C).
The month with the lowest average high temperature is February (0.4°C).
- Average low temperature in September: 13.3°C
The month with the highest average low temperature is August (16.5°C).
The coldest month (with the lowest average low temperature) is February (-2.1°C).
Average pressure in September
Mässa, Estonia
- Average pressure in September: 1014.4mbar
The month with the highest atmospheric pressure is May (1015.4mbar).
The month with the lowest atmospheric pressure is December (1009.5mbar).
Average wind speed in September
Mässa, Estonia
- Average wind speed in September: 24.4km/h
The windiest month (with the highest average wind speed) is December (30.6km/h).
The calmest month (with the lowest average wind speed) is May (18.9km/h).
Average humidity in September
Mässa, Estonia
- Average humidity in September: 77%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Mässa, Estonia
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is July (34mm).
The driest month (with the least rainfall) is April (9mm).
Average rainfall days in September
Mässa, Estonia
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is August (14.6 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in September
Mässa, Estonia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (53mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Mässa, Estonia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mässa, Estonia
- Average daylight in September: 12h and 5min
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 36min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 54min).
Average sunshine days in September
Mässa, Estonia
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is May (19.8 days).
The month with the least sunshine days is December (9 days).
Average UV index in September
Mässa, Estonia
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Mässa, 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
Mässa, Estonia
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
