Last updated: August 27, 2025
In September, the average temperature in Forssjoe, Sweden hovers around 13°C (55°F), with lows dipping to 0°C (33°F) and highs reaching up to 25°C (77°F). Expect some rain, as 63 mm (2.5 in) of precipitation typically falls over 11 days, accompanied by a relatively high average humidity of 83%.
In September in Forssjoe, the average temperature is 13°C (55°F), with maximums reaching 25°C (77°F) and minimums dropping as low as 0°C (33°F). It's a great time to pack layers for your travels, as the weather can vary significantly throughout the day.
In Forssjoe in September, the precipitation amount is 63 mm (2.5 in) during a total of 11 days.
In Forssjoe in September humidity is 83%. With an average temperature of 13°C (55°F), this humidity feels like a damp embrace, often leaving travelers feeling slightly sticky and in need of frequent breaks in the shade.
In Forssjoe in September, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Forssjoe for better planning.
UV Risk Categories
Weather in Forssjoe varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Forssjoe, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 0°C (32°F) | 37 mm (1.4 inches) | 91% | low |
February Weather | -1°C (31°F) | 31 mm (1.2 inches) | 89% | low |
March Weather | 2°C (36°F) | 42 mm (1.7 inches) | 88% | moderate |
April Weather | 6°C (42°F) | 30 mm (1.2 inches) | 82% | moderate |
May Weather | 11°C (52°F) | 59 mm (2.3 inches) | 71% | moderate |
June Weather | 17°C (63°F) | 50 mm (2.0 inches) | 69% | high |
July Weather | 18°C (65°F) | 63 mm (2.5 inches) | 67% | high |
August Weather | 17°C (62°F) | 71 mm (2.8 inches) | 72% | high |
September Weather | 13°C (55°F) | 63 mm (2.5 inches) | 83% | moderate |
October Weather | 8°C (47°F) | 71 mm (2.8 inches) | 89% | low |
November Weather | 4°C (39°F) | 48 mm (1.9 inches) | 91% | low |
December Weather | 1°C (33°F) | 55 mm (2.2 inches) | 90% | low |