Weather in September
Temperature
In September, the average high-temperature marginally drops from an enjoyable 19°C (66.2°F) in August to a mild 15°C (59°F). In Haapsalu, Estonia, the average low-temperature is 9°C (48.2°F).Rainfall
September is the month with the most rainfall. Rain falls for 16 days and accumulates 70mm (2.76") of precipitation.Sea temperature
In September, the average sea temperature is 14°C (57.2°F).Note: Swimming in 14°C (57.2°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
Daylight
In September, the average length of the day is 12h and 50min.On the first day of the month, sunrise is at 06:23 and sunset at 20:28. On the last day of September, in Haapsalu, Estonia, sunrise is at 07:27 and sunset at 19:04 EEST.
Sunshine
The average sunshine in September in Haapsalu is 5h.UV index
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 3 in September transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
FAQ
What is the temperature in September in Haapsalu?
What is the wettest month in Haapsalu?
How many days does it rain in September in Haapsalu?
How cold is the water in September in Haapsalu?
What is the average length of the day in September in Haapsalu?
When is the sunrise / sunset in September in Haapsalu?
How many hours of sunshine does Haapsalu have in September?
What is the UV index reading in September in Haapsalu?
Average temperature in September
Haapsalu, Estonia
- Average high temperature in September: 15°C
The warmest month (with the highest average high temperature) is July (20°C).
The months with the lowest average high temperature are January and February (-2°C).
- Average low temperature in September: 9°C
The months with the highest average low temperature are July and August (13°C).
The coldest month (with the lowest average low temperature) is February (-8°C).
Average rainfall in September
Haapsalu, Estonia
- Average rainfall in September: 70mm
The wettest month (with the highest rainfall) is September (70mm).
The driest months (with the least rainfall) are February and March (27mm).
Average rainfall days in September
Haapsalu, Estonia
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is December (20 days).
The months with the least rainy days are May and June (10 days).
Average sea temperature in September
Haapsalu, Estonia
- Average sea temperature in September: 14°C
The best month for swimming (with the highest average sea temperature) is August (17°C).
The coldest months (with the lowest average sea temperature) are February and March (1°C).
Average daylight in September /
Average sunshine in September
Haapsalu, Estonia
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in September: 5h
The month with the most sunshine is June (Average sunshine: 10h).
The months with the least sunshine are January, November and December (Average sunshine: 1h).
Average UV index in September
Haapsalu, 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, November and December (UV index 0).
Weather forecast for your location
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