Siren (WI) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Siren.
Climate overview of Siren
The climate in Siren, Wisconsin, United States of America, is marked by large temperature swings across the seasons, ranging from 27°C (81°F) in July to -6°C (21°F) in January.
Annual rain/snowfall is moderate at around 832 mm (33 in), with August being the wettest month. The city also has a distinct dry season from January to March, with warm summers and very cold winters.
Siren Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Siren - and find the best time to visit.
Monthly Temperature in Siren
In Siren, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 27°C (81°F) in July. In January, the coolest month of the year, temperatures drop to a very cold -6°C (21°F).
At night, temperatures range from around 15°C (59°F) in July to -16°C (3°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Siren
On average, Siren receives a reasonable amount of rain/snowfall, with an annual precipitation of 832 mm (33 in). Siren can be quite wet during August, receiving approximately 128 mm (5 in) of precipitation over 12 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 17 mm (0.7 in) of precipitation spread across 10 snowy days. For more details, please visit our Siren Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Siren
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: September
- Warmest weather: July and August
- Fewest rainy days: February and November
- Seasonal pattern: A distinct dry season from January to March, with warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -16°C (3°F).
Frequently asked questions about the climate in Siren
What is the best time to visit Siren?
September typically offers the most optimal weather in Siren. In contrast, January, February, March, November and December tend to have less optimal conditions. Siren has a distinct dry season from January to March, with warm summers and very cold winters.
What temperatures can I expect in Siren?
Daytime highs range from -6°C (21°F) in January to 27°C (81°F) in July. Nighttime lows range from -16°C (3°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Siren get?
Annual rainfall is around 832 mm (33 in). August is the wettest month with 128 mm (5 in), while January is the driest with 17 mm (0.7 in).
Siren 3-Day Forecast
Siren (WI) 3-Day Forecast
Siren on the map
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