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
September's onset brings a negligible change in high-temperatures, falling from a comfortable 19.8°C (67.6°F) in August to a mild 15.5°C (59.9°F). Arju's nocturnal readings in September exhibit minimal variation from the daytime temperatures, averaging at a fresh 12.1°C (53.8°F).Humidity
In September, the average relative humidity in Arju is 78%.Rainfall
In September, the rain falls for 14.5 days. Throughout September, 38mm (1.5") of precipitation is accumulated. Throughout the year, in Arju, there are 149.1 rainfall days, and 430mm (16.93") of precipitation is accumulated.Snowfall
In Arju, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 49min.On the first day of the month, sunrise is at 06:28 and sunset at 20:28. On the last day of September, in Arju, sunrise is at 07:31 and sunset at 19:04 EEST.
Sunshine
The average sunshine in September is 7.6h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 3 translates into these guidelines:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Arju in September?
What is the average humidity in September in Arju?
How many days does it rain in September in Arju?
When it does not snow in Arju?
Does it snow in Arju in September?
What is the average length of the day in September in Arju?
When is the sunrise / sunset in September in Arju?
How long on average sun shines in September in Arju?
What is the UV index reading in September in Arju?
Average temperature in September
Arju, Estonia
- Average high temperature in September: 15.5°C
The warmest months (with the highest average high temperature) are July and August (19.8°C).
The month with the lowest average high temperature is February (-0.4°C).
- Average low temperature in September: 12.1°C
The months with the highest average low temperature are July and August (15.3°C).
The coldest month (with the lowest average low temperature) is February (-3.2°C).
Average pressure in September
Arju, Estonia
- Average pressure in September: 1013.9mbar
The month with the highest atmospheric pressure is May (1015.2mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).
Average wind speed in September
Arju, Estonia
- Average wind speed in September: 19.1km/h
The windiest month (with the highest average wind speed) is December (23.8km/h).
The calmest month (with the lowest average wind speed) is May (15.6km/h).
Average humidity in September
Arju, Estonia
- Average humidity in September: 78%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are May, June, July and August (75%).
Average rainfall in September
Arju, Estonia
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is December (53mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in September
Arju, Estonia
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is November (17.8 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in September
Arju, Estonia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (145mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Arju, Estonia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Arju, Estonia
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 12min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in September: 7h and 4min
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 48min).
Average sunshine days in September
Arju, Estonia
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is May (19.6 days).
The month with the least sunshine days is December (3.6 days).
Average UV index in September
Arju, Estonia
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).
Average cloud cover in September
Arju, Estonia
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 77).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
Arju, 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, February and December (8km).
Arju, Estonia
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