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
The start of September signals a gentle decrease in the average high-temperature, transitioning from a pleasant 20.1°C (68.2°F) in August to a refreshing 15.3°C (59.5°F). Haili, during September nights, records a temperature marginally cooler than the daytime average, at a fresh 10.9°C (51.6°F).Humidity
In September, the average relative humidity in Haili is 79%.Rainfall
In Haili, during September, the rain falls for 13.5 days and regularly aggregates up to 28mm (1.1") of precipitation. Throughout the year, in Haili, there are 127.9 rainfall days, and 301mm (11.85") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Haili, Estonia.Daylight
In September, the average length of the day in Haili is 12h and 51min.On the first day of the month, sunrise is at 06:12 and sunset at 20:17. On the last day of September, in Haili, sunrise is at 07:19 and sunset at 18:50 EEST.
Sunshine
The average sunshine in September in Haili is 6.8h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 3 during September leads to these advisories:
Act with care - The suggestion to avoid sunburn is emphasized. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What is the average September temperature in Haili?
What is the average humidity in September in Haili?
How many days does it rain in September in Haili?
When it does not snow in Haili?
Does it snow in Haili in September?
How many hours of daylight does Haili have in September?
When is the sunrise / sunset in September in Haili?
How long on average sun shines in September in Haili?
How high is the UV index in September in Haili?
Average temperature in September
Haili, Estonia
- Average high temperature in September: 15.3°C
The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is February (-2.3°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is July (14.4°C).
The coldest month (with the lowest average low temperature) is February (-5.5°C).
Average pressure in September
Haili, Estonia
- Average pressure in September: 1014mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1009.6mbar).
Average wind speed in September
Haili, Estonia
- Average wind speed in September: 16.4km/h
The windiest month (with the highest average wind speed) is December (20.2km/h).
The calmest month (with the lowest average wind speed) is May (12.9km/h).
Average humidity in September
Haili, Estonia
- Average humidity in September: 79%
The month with the highest relative humidity is February (92%).
The months with the lowest relative humidity are May and June (72%).
Average rainfall in September
Haili, Estonia
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is August (39mm).
The driest months (with the least rainfall) are February and April (17mm).
Average rainfall days in September
Haili, Estonia
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is August (15.2 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in September
Haili, Estonia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (77mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Haili, Estonia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Haili, Estonia
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days in September
Haili, Estonia
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is May (17.5 days).
The months with the least sunshine days are January and December (10.4 days).
Average UV index in September
Haili, Estonia
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March and November (UV index 1).
Average cloud cover in September
Haili, Estonia
- Average cloud cover in September: 53
The month with the most cloud cover is December (Cloud cover 81).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in September
Haili, 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 and March (8km).
Haili, Estonia
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