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
The arrival of September suggests a slight decrease in the average high-temperature, moving from an enjoyable 18.2°C (64.8°F) in August to a moderate 13.5°C (56.3°F). A modest nighttime temperature average of 8.6°C (47.5°F) characterizes September.Humidity
In Halsua, the average relative humidity in September is 81%.Rainfall
April and September are months with the least rain in Halsua when the rain falls for 11.8 days and typically aggregates up to 23mm (0.91") of rain.Snowfall
June through September are months without snowfall in Halsua.Daylight
In Halsua, the average length of the day in September is 12h and 59min.On the first day of the month, sunrise is at 06:09 and sunset at 20:36. On the last day of September, sunrise is at 07:30 and sunset at 18:56 EEST.
Sunshine
The average sunshine in September is 7.2h.UV index
In Halsua, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In September, the UV index of 3 transforms into the following advice:
Undertake precautions - Obligation exists to protect against skin and eye damage. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Halsua?
What is the average humidity in September in Halsua?
What is the driest month in Halsua?
How much does it rain in Halsua in September?
When it does not snow in Halsua?
Does it snow in Halsua in September?
How many hours of daylight does Halsua have in September?
When is the sunrise / sunset in September in Halsua?
How long on average sun shines in September in Halsua?
What is the UV index reading in September in Halsua?
Average temperature in September
Halsua, Finland
- Average high temperature in September: 13.5°C
The warmest month (with the highest average high temperature) is July (19.4°C).
The month with the lowest average high temperature is January (-4.2°C).
- Average low temperature in September: 8.6°C
The month with the highest average low temperature is July (12.6°C).
The coldest months (with the lowest average low temperature) are January and February (-7.6°C).
Average pressure in September
Halsua, Finland
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is May (1014.2mbar).
The month with the lowest atmospheric pressure is December (1005.6mbar).
Average wind speed in September
Halsua, Finland
- Average wind speed in September: 14.3km/h
The windiest month (with the highest average wind speed) is December (16.3km/h).
The calmest month (with the lowest average wind speed) is July (11.7km/h).
Average humidity in September
Halsua, Finland
- Average humidity in September: 81%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is June (70%).
Average rainfall in September
Halsua, Finland
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is July (42mm).
The driest months (with the least rainfall) are April and September (23mm).
Average rainfall days in September
Halsua, Finland
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is August (14.7 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in September
Halsua, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (185mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Halsua, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (21 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Halsua, Finland
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 24min).
The month with the shortest days is December (Average daylight: 4h and 42min).
- Average sunshine in September: 7h and 1min
The month with the most sunshine is June (Average sunshine: 12h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 12min).
Average sunshine days in September
Halsua, Finland
- Average sunshine days in September: 15.9 days
The months with the most sunshine days are May and June (17.3 days).
The month with the least sunshine days is December (6.5 days).
Average UV index in September
Halsua, 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, November and December (UV index 1).
Average cloud cover in September
Halsua, Finland
- Average cloud cover in September: 50
The months with the most cloud cover are January and February (Cloud cover 73).
The month with the least cloud cover is June (Cloud cover 39).
Average visibility in September
Halsua, Finland
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February and March (7km).
