Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
October
Weather in October
Temperature
October's arrival correlates with a reduction in the average high-temperature, down from a moderate 14.9°C (58.8°F) in September to a chilly 8°C (46.4°F). October in Harjavalta, Finland, witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 4.1°C (39.4°F).Humidity
In Harjavalta, the average relative humidity in October is 82%.Rainfall
In Harjavalta, Finland, during October, the rain falls for 14.9 days and regularly aggregates up to 49mm (1.93") of precipitation. In Harjavalta, during the entire year, the rain falls for 154.3 days and collects up to 508mm (20") of precipitation.Snowfall
Months with snowfall in Harjavalta are January through May, October through December. October is the first month it typically snows in Harjavalta. Throughout October, in the average 2.5 snowfall days, it receives 11mm (0.43") of snow. In Harjavalta, Finland, during the entire year, snow falls for 82.2 days and aggregates up to 699mm (27.52") of snow.Daylight
The average length of the day in October is 10h and 1min.On the first day of October in Harjavalta, sunrise is at 07:39 and sunset at 19:02 EEST. On the last day of the month, sunrise is at 07:58 and sunset at 16:31 EET.
Note: On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends, and the time zone changes from EEST to EET. Daylight Saving Time starts again on Sunday, 30. March 2025, at 03:00; consequently, the time zone reverts from EET to EEST.
Sunshine
In Harjavalta, the average sunshine in October is 4.2h.UV index
In October, the average daily maximum UV index in Harjavalta is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in October interprets into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature in Harjavalta?
What is the average humidity in October in Harjavalta?
How much does it rain in Harjavalta in October?
When does it start to snow in Harjavalta?
What is the average length of the day in October in Harjavalta?
When are sunrise and sunset in October in Harjavalta?
When does Daylight Saving Time (DST) end in October in Harjavalta?
How long on average sun shines in October in Harjavalta?
What is the UV index intensity in October in Harjavalta?
Average temperature in October
Harjavalta, Finland
- Average high temperature in October: 8°C
The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is January (-2.3°C).
- Average low temperature in October: 4.1°C
The month with the highest average low temperature is July (13.4°C).
The coldest month (with the lowest average low temperature) is January (-6°C).
Average pressure in October
Harjavalta, Finland
- Average pressure in October: 1013.3mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1006.8mbar).
Average wind speed in October
Harjavalta, Finland
- Average wind speed in October: 14.8km/h
The windiest month (with the highest average wind speed) is December (16.6km/h).
The calmest month (with the lowest average wind speed) is July (12.6km/h).
Average humidity in October
Harjavalta, Finland
- Average humidity in October: 82%
The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is May (69%).
Average rainfall in October
Harjavalta, Finland
- Average rainfall in October: 49mm
The wettest month (with the highest rainfall) is July (63mm).
The driest months (with the least rainfall) are March and April (31mm).
Average rainfall days in October
Harjavalta, Finland
- Average rainfall days in October: 14.9 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in October
Harjavalta, Finland
- Average snowfall in October: 11mm
The month with the highest snowfall is February (163mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in October
Harjavalta, Finland
- Average snowfall days in October: 2.5 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Harjavalta, Finland
- Average daylight in October: 10h and 0min
The month with the longest days is June (Average daylight: 19h and 12min).
The month with the shortest days is December (Average daylight: 5h and 36min).
- Average sunshine in October: 4h and 1min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in October
Harjavalta, Finland
- Average sunshine days in October: 11.9 days
The month with the most sunshine days is May (14.2 days).
The month with the least sunshine days is November (8.5 days).
Average UV index in October
Harjavalta, Finland
- Average UV index in October: 2
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 December (UV index 1).
Average cloud cover in October
Harjavalta, Finland
- Average cloud cover in October: 57
The months with the most cloud cover are January, February and December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in October
Harjavalta, Finland
- Average visibility in October: 9km
The month with the highest visibility is June (10km).
The month with the lowest visibility is February (7km).
