Riihimäki Temperature by Month

The average annual maximum temperature in Riihimäki, Southern Finland, Finland is 10°C (50°F), with daytime highs ranging from -1°C (30°F) in February to 23°C (73°F) in July. This page covers monthly averages, day-night differences, and how Riihimäki compares to cities worldwide.

Depending on the time of the year, temperatures range from warm to very cold in Riihimäki. Nighttime lows follow the same pattern, ranging from 13°C (55°F) to -9°C (16°F).

The chart below illustrates the average maximum day and minimum night temperatures in Riihimäki by month:

Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. July, the city's warmest month, sees 291 hours of sunshine.

The chart below shows the average temperature throughout the year:

Riihimäki's average annual maximum temperature is 10°C (50°F). To put that in context, here's how it compares to a few well-known destinations:

Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.

Glasgow, Scotland averages 13°C (55°F) a year, mild but often grey, with cold winters and rarely hot summers.

Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.

In Riihimäki, February is the coolest month, with average highs of -1°C (30°F) and humidity around 86%, considered very high. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Riihimäki this rarely lasts long on the ground.

For more on Riihimäki's weather, including monthly rainfall, sunshine hours, and humidity, visit our Riihimäki climate page.