Forssa Temperature by Month
Forssa in Southern Finland, Finland sees significant seasonal temperature differences, with daytime highs between -1°C (30°F) in February and 23°C (73°F) in July, averaging 10°C (50°F) annually. Explore the full monthly breakdown below.
Forssa Monthly Temperatures
Visitors to Forssa will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 12°C (54°F) in July to -9°C (16°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Forssa by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. July, the warmest month, averages 247 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Forssa vs Finland
The map below shows the annual temperature across Finland. You can also select individual months if you want to compare a specific time of year.
very warm
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pleasant
moderate
cold
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Forssa vs World: Temperature Compared
Forssa'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.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Forssa's weather — including monthly rainfall, sunshine hours, and humidity — visit our Forssa climate page.
