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Exploring Koisjärvi

The city of Koisjärvi has some interesting things to see and do. Popular attractions in and around Koisjärvi include:

• Tytyri Mine Museum
• Lohja Museo
• Johannes Virolainen Monument
• PuuhaPark
• Vihti Golf
• Market Square, Lohja
• Lohjantähti Shopping Center

When is the Best Time to Explore Koisjärvi?

If you're curious when is the best time of year to visit Koisjärvi, you may find this information about seasonal weather helpful when you are organising your getaway. The warmest months in Koisjärvi are typically July and August, whereas the coldest months are usually January and February. The months with the most rain are July and August, whereas April and March have the least.

Here's a rundown on how much rain you can expect and what the temperatures are going to be like:

• From January to March, the average daytime temperature is 1°C and at night it is -7°C. Seasonal average rainfall is 133 mm.
• If you visit between April and June, you can expect an average temp of 19°C during the day and 0°C at night. Average rainfall during this season is 161 mm.
• The daytime average temp from July to September is 21°C and the night-time average is 9°C. Average precipitation for this season is 217 mm.
• Between October and December, the average temp during the day is 8°C and -4°C at night. Seasonal average rain is 160 mm.
• The annual rainfall average in Koisjärvi is 671 mm.