The temperatures in Riihimaki in August are comfortable with low of 12°C and and high up to 21°C.
You can expect rain for roughly half of the month of August in Riihimaki. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Riihimaki in August 2026.
If you’re planning to visit Riihimaki in the near future, we highly recommend that you review the 14 day weather forecast for Riihimaki before you arrive.
Temperatures
21° / 12°
Rainy Days
10
Snowy Days
0
Dry Days
21
Rainfall
70
mm
Sun Hours
5.5
Hrs
