September weather forecastNivala, Finland

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Nivala, Finland, with an average temperature ranging between max 13.3°C (55.9°F) and min 6.4°C (43.5°F).

Temperature

The transition into September indicates a reduction in the average high-temperature, down to a still refreshing 13.3°C (55.9°F) from August's 19.1°C (66.4°F). An average nighttime temperature of 6.4°C (43.5°F) is noted in Nivala during the month of September.

Humidity

In Nivala, the average relative humidity in September is 84%.

Rainfall

In September, in Nivala, Finland, the rain falls for 12.1 days. Throughout September, 28mm (1.1") of precipitation is accumulated. Throughout the year, in Nivala, there are 118.8 rainfall days, and 391mm (15.39") of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Nivala.

Daylight

The average length of the day in September in Nivala is 13h and 1min.
On the first day of the month, sunrise is at 06:04 and sunset at 20:35. On the last day of September, in Nivala, sunrise is at 07:27 and sunset at 18:52 EEST.

Sunshine

In Nivala, Finland, the average sunshine in September is 6.2h.

UV index

In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 3 in September translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.

Frequently asked questions

In Nivala, in September, the average high-temperature is 13.3°C (55.9°F), and the average low-temperature is 6.4°C (43.5°F).

The average relative humidity in September in Nivala is 84%.

In Nivala, in September, during 12.1 rainfall days, 28mm (1.1") of precipitation is typically accumulated.

In Nivala, snow does not fall in June through September.

In Nivala, Finland, in September, it doesn't snow. In October, it regularly snows.

The average day length in September in Nivala, Finland, is 13h and 1min.

On the first day of September in Nivala, sunrise is at 06:04 and sunset at 20:35. On the last day of the month, sunrise is at 07:27 and sunset at 18:52 EEST.

In Nivala, the average sunshine duration in September is 6.2h.

In Nivala, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Nivala, Finland

  • Average high temperature in September: 13.3°C

The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (-5.8°C).

  • Average low temperature in September: 6.4°C

The month with the highest average low temperature is July (11.4°C).
The coldest month (with the lowest average low temperature) is January (-10°C).

Average pressure in September
Nivala, Finland

  • Average pressure in September: 1011.8mbar

The month with the highest atmospheric pressure is May (1014.2mbar).
The month with the lowest atmospheric pressure is December (1006mbar).

Average wind speed in September
Nivala, Finland

  • Average wind speed in September: 10.2km/h

The windiest month (with the highest average wind speed) is December (11.5km/h).
The calmest month (with the lowest average wind speed) is July (8.9km/h).

Average humidity in September
Nivala, Finland

  • Average humidity in September: 84%

The month with the highest relative humidity is January (96%).
The month with the lowest relative humidity is June (67%).

Average rainfall in September
Nivala, Finland

  • Average rainfall in September: 28mm

The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (23mm).

Average rainfall days in September
Nivala, Finland

  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is February (3.3 days).

Average snowfall in September
Nivala, Finland

  • Average snowfall in September: 0mm

The month with the highest snowfall is December (200mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Nivala, Finland

  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (21.6 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Nivala, Finland

  • Average daylight in September: 13h and 0min

The month with the longest days is June (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 4h and 30min).

  • Average sunshine in September: 6h and 12min

The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 0h and 54min).

Average sunshine days in September
Nivala, Finland

  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is May (17.2 days).
The month with the least sunshine days is December (8.5 days).

Average UV index in September
Nivala, 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
Nivala, Finland

  • Average cloud cover in September: 61

The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is June (Cloud cover 47).

Average visibility in September
Nivala, Finland

  • Average visibility in September: 7km

The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January and February (5km).