Järfälla Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Järfälla.
Climate overview of Järfälla
Järfälla, Stockholm county, Sweden, sees big temperature differences between seasons, with July peaking at 23°C (73°F) and January dropping to 2°C (36°F).
The city receives around 637 mm (25 in) of rain/snowfall per year. It experiences a distinct dry season from February to April, with warm summers and very cold winters. August is the wettest month and March the driest. The sunniest month is July, with 9.4 hours of sunshine per day on average.
Järfälla Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Järfälla - and find the best time to visit.
Monthly Temperature in Järfälla
Visitors to Järfälla can expect significant temperature changes throughout the year. On average, daytime temperatures range from a comfortable 23°C (73°F) in July to a very cold 2°C (36°F) in January.
Nighttime temperatures range from 13°C (55°F) in July to -5°C (23°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Järfälla
Generally, Järfälla experiences moderate precipitation patterns, averaging 637 mm (25 in) yearly. The seasons in Järfälla bring significant changes in precipitation. The wettest month, August, receives moderate rainfall, with an average of 76 mm (3 in) of precipitation. This rainfall is distributed across 13 rainy days.
In contrast, the driest month, March, experiences much less snow/rainfall, totaling 35 mm (1.4 in) over 12 snowy/rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Järfälla Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Järfälla
In Järfälla, summer days are longer and more sunny, with daily sunshine hours peaking at 9.4 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.1 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Water Temperature in Järfälla
The mean water temperature over the year ranges from 1°C (34°F) in March to 19°C (66°F) in August.
Water temperature over the year
Humidity in Järfälla by Month
The relative humidity is high throughout the year in Järfälla.
The city experiences its highest humidity in November, reaching 87%. In May, the humidity drops to its lowest level at 60%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Järfälla
The mean wind speed varies between 3 m/s (6 knots) and 4 m/s (8 knots) throughout the year. It is lowest in January, February, March, April, July, August, September, November and December and highest during May, June and October. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Järfälla
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July and August
- Warmest weather: July and August
- Most sunshine: May, June and July
- Fewest rainy days: March, April, May and June
- Warmest water temperature: August, although the water may still feel cool.
- Seasonal pattern: A distinct dry season from February to April, with warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -5°C (23°F).
Frequently asked questions about the climate in Järfälla
What is the best time to visit Järfälla?
June, July and August typically offer the most optimal weather in Järfälla. In contrast, January, February, March, November and December tend to have less optimal conditions. Järfälla has a distinct dry season from February to April, with warm summers and very cold winters.
What temperatures can I expect in Järfälla?
Daytime highs range from 2°C (36°F) in January to 23°C (73°F) in July. Nighttime lows range from -5°C (23°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Järfälla get?
Annual rainfall is around 637 mm (25 in). August is the wettest month with 76 mm (3 in), while March is the driest with 35 mm (1.4 in).
How sunny is Järfälla?
Järfälla receives around 1,917 hours of sunshine per year. July is the sunniest month with 283 hours, while December is the cloudiest with just 32 hours.
Järfälla 3-Day Forecast
Järfälla on the map
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