Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August's presence in Riihimäki records an average high-temperature of a still agreeable 20.8°C (69.4°F), closely mirroring July's climate. The mean low-temperature during August nights is a cool 11.6°C (52.9°F).Humidity
The average relative humidity in August in Riihimäki is 75%.Rainfall
The month with the least rainfall in Riihimäki is August, when the rain falls for 11 days and typically collects 18mm (0.71") of precipitation.Snowfall
June through September are months without snowfall in Riihimäki.Daylight
The average length of the day in August in Riihimäki is 15h and 41min.On the first day of August, sunrise is at 04:58 and sunset at 21:56. On the last day of the month, sunrise is at 06:12 and sunset at 20:29 EEST.
Sunshine
In Riihimäki, the average sunshine in August is 9.4h.UV index
The average daily maximum UV index in August in Riihimäki is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during August translates into these guidelines:
Be vigilant - A duty to shield skin and eyes from injury exists. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Riihimäki in August?
What is the average humidity in August in Riihimäki?
What is the driest month in Riihimäki?
How much does it rain in Riihimäki in August?
When it does not snow in Riihimäki?
What is the average length of the day in August in Riihimäki?
What time are sunrise and sunset in August in Riihimäki?
How many hours of sunshine does Riihimäki have in August?
How high is the UV index in August in Riihimäki?
Average temperature in August
Riihimäki, Finland
- Average high temperature in August: 20.8°C
The warmest month (with the highest average high temperature) is July (22.2°C).
The month with the lowest average high temperature is January (-3.8°C).
- Average low temperature in August: 11.6°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is January (-8.3°C).
Average pressure in August
Riihimäki, Finland
- Average pressure in August: 1013.3mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.3mbar).
Average wind speed in August
Riihimäki, Finland
- Average wind speed in August: 9.1km/h
The windiest month (with the highest average wind speed) is December (11.4km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).
Average humidity in August
Riihimäki, Finland
- Average humidity in August: 75%
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is May (67%).
Average rainfall in August
Riihimäki, Finland
- Average rainfall in August: 18mm
The wettest month (with the highest rainfall) is December (44mm).
The driest month (with the least rainfall) is August (18mm).
Average rainfall days in August
Riihimäki, Finland
- Average rainfall days in August: 11 days
The month with the highest number of rainy days is November (13.5 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in August
Riihimäki, Finland
- Average snowfall in August: 0mm
The month with the highest snowfall is February (229mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in August
Riihimäki, Finland
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (22.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Riihimäki, Finland
- Average daylight in August: 15h and 4min
The month with the longest days is June (Average daylight: 19h and 0min).
The month with the shortest days is December (Average daylight: 5h and 48min).
- Average sunshine in August: 9h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days in August
Riihimäki, Finland
- Average sunshine days in August: 19 days
The month with the most sunshine days is June (20.8 days).
The month with the least sunshine days is February (6.5 days).
Average UV index in August
Riihimäki, Finland
- Average UV index in August: 4
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, November and December (UV index 1).
Average cloud cover in August
Riihimäki, Finland
- Average cloud cover in August: 42
The months with the most cloud cover are January and February (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in August
Riihimäki, Finland
- Average visibility in August: 8km
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January and February (5km).
Riihimäki, Finland
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