Climate Insights for Silvan

The climate in Silvan is temperate. The average annual temperature is 17°C and approximately 739mm of precipitation falls per year. December is the wettest month, receiving around 153mm of rainfall. Silvan is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, November, when temperatures can drop to -2°C. Snowfall occurs from January to December, with around 51cm accumulating over the season.

Silvan has a wide annual temperature range, spanning 42°C from the coldest to warmest months. August is the hottest month, with daytime highs reaching 40°C and an average of 32°C. The coldest month is January, when overnight lows fall to -2°C and the daily average is 2°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 10°C shift in average temperatures.

Silvan is a relatively dry area, receiving approximately 739mm of precipitation annually, which averages out to around 62mm per month. The wettest month is December, averaging 153mm of rainfall. January and March also tend to see above-average precipitation. The driest month is July, with just 0mm. That's 153mm less than December, 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. Snowfall is a regular feature from January to December, with around 51cm accumulating over the season. January typically sees the most snow at around 35cm.

Silvan is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.

It is currently summer in Silvan, which began on June 21, 2026. Silvan 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 40°C, while the coldest stretch bottoms out in January near -2°C. Autumn is next, beginning on September 23, 2026 — 52 days from now.

The best time to visit Silvan is during April, May, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 39mm per month. By contrast, August can be uncomfortably hot with highs reaching 40°C, while January is the coldest period with lows dropping to -2°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Silvan 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.