Climate Insights for Sil-li

The climate in Sil-li is temperate. The average annual temperature is 11°C and approximately 1182mm of precipitation falls per year. July is the wettest month, receiving around 265mm of rainfall. Sil-li is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, December, February, when temperatures can drop to -7°C. Light snow can occur between January and December.

Temperatures in Sil-li vary considerably across the year, with a 34°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 27°C and the mean temperature sits around 25°C. The coldest month is January, when overnight lows fall to -7°C and the daily average is -4°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between October and November, with a 8°C shift in average temperatures.

Sil-li is a moderately rainy area, receiving approximately 1182mm of precipitation annually, which averages out to around 98mm per month. The wettest month is July, averaging 265mm of rainfall. August and June also tend to see above-average precipitation. The driest month is January, with just 14mm. That's 251mm less than July, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and December, totalling around 23cm annually. December is the snowiest month with approximately 8cm.

Sil-li is moderately windy, with an average annual wind speed of 21km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 23km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in June, with average winds dropping to 19km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 23km/h in winter, 22km/h in spring, 19km/h in summer, 21km/h in autumn.

It is currently spring in Sil-li, which began on March 20, 2026. Sil-li is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 27°C, while the coldest stretch bottoms out in January near -7°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Sil-li is during September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 91mm per month. By contrast, August can be uncomfortably hot with highs reaching 27°C, while January is the coldest period with lows dropping to -7°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Sil-li based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.