Overall on the next 14 days there will be 1 days with snow in Riihimaki and a total of 0.1 cm of snow.
It will be snowy on the following days:
°F °C
Riihimaki 
Weather in December 2025
Overall on the next 14 days there will be 1 days with snow in Riihimaki and a total of 0.1 cm of snow.
It will be snowy on the following days:
The weather in Riihimaki in December is very cold with temperatures between -5°C and -1°C, warm clothes are a must.
You can expect rain for roughly half of the month of December 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.
You can expect a few days of snow in Riihimaki during December. It’s important to get out your snow boots and warm mittens to stay warm while you explore Riihimaki.
Our weather forecast can give you a great sense of what weather to expect in Riihimaki in December 2025.
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.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -3° / -8° | 12 | 14 | 5 | 48 mm | Awful | Riihimaki in January |
| February | -3° / -7° | 10 | 13 | 5 | 41 mm | Awful | Riihimaki in February |
| March | 1° / -5° | 9 | 17 | 5 | 42 mm | Awful | Riihimaki in March |
| April | 8° / 0° | 6 | 22 | 2 | 40 mm | Bad | Riihimaki in April |
| May | 15° / 6° | 8 | 23 | 0 | 57 mm | Ok | Riihimaki in May |
| June | 20° / 10° | 10 | 20 | 0 | 70 mm | Ok | Riihimaki in June |
| July | 22° / 13° | 10 | 21 | 0 | 76 mm | Ok | Riihimaki in July |
| August | 21° / 12° | 10 | 21 | 0 | 70 mm | Ok | Riihimaki in August |
| September | 15° / 8° | 8 | 22 | 0 | 55 mm | Ok | Riihimaki in September |
| October | 8° / 3° | 7 | 24 | 0 | 52 mm | Bad | Riihimaki in October |
| November | 3° / 0° | 8 | 21 | 1 | 47 mm | Bad | Riihimaki in November |
| December | -1° / -5° | 11 | 16 | 4 | 53 mm | Awful | Riihimaki in December |
