September weather forecastHalujärvi, Finland
September
Weather in September
September, the first month of the autumn in Halujärvi, is still a mild month, with an average temperature ranging between min 10.7°C (51.3°F) and max 15°C (59°F).Temperature
With the commencement of September, Halujärvi records a moderate temperature decline, with the average high easing from August's comfortable 19.7°C (67.5°F) to a mild 15°C (59°F). September nights in Halujärvi, Finland, document an average temperature reading of 10.7°C (51.3°F).Humidity
The average relative humidity in September is 80%.Rainfall
In Halujärvi, in September, it is raining for 15.4 days, with typically 42mm (1.65") of accumulated precipitation. In Halujärvi, during the entire year, the rain falls for 154.7 days and collects up to 499mm (19.65") of precipitation.Snowfall
June through September are months without snowfall in Halujärvi.Daylight
In September, the average length of the day in Halujärvi is 12h and 52min.On the first day of the month, sunrise is at 06:17 and sunset at 20:25. On the last day of September, sunrise is at 07:26 and sunset at 18:56 EEST.
Sunshine
In Halujärvi, the average sunshine in September is 7.7h.UV index
In September, the average daily maximum UV index in Halujärvi, Finland, is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 3 in September suggests the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Halujärvi, Finland
- Average high temperature in September: 15°C
The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-2.1°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is July (14.3°C).
The coldest month (with the lowest average low temperature) is January (-5.7°C).
Average pressure in September
Halujärvi, Finland
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).
Average wind speed in September
Halujärvi, Finland
- Average wind speed in September: 16.1km/h
The windiest month (with the highest average wind speed) is December (20.1km/h).
The calmest month (with the lowest average wind speed) is May (13.2km/h).
Average humidity in September
Halujärvi, Finland
- 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
Halujärvi, Finland
- Average rainfall in September: 42mm
The wettest months (with the highest rainfall) are July and October (52mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in September
Halujärvi, Finland
- Average rainfall days in September: 15.4 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in September
Halujärvi, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (157mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Halujärvi, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Halujärvi, Finland
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in September: 7h and 42min
The month with the most sunshine is June (Average sunshine: 12h and 24min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in September
Halujärvi, Finland
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is May (16.5 days).
The month with the least sunshine days is December (5.6 days).
Average UV index in September
Halujärvi, Finland
- 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 and December (UV index 1).
Average cloud cover in September
Halujärvi, Finland
- Average cloud cover in September: 46
The month with the most cloud cover is December (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in September
Halujärvi, Finland
- 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).
