Climate Insights for Şimleu Silvaniei

The climate in Şimleu Silvaniei is temperate. The average annual temperature is 11°C and approximately 795mm of precipitation falls per year. Şimleu Silvaniei receives a notable amount of rainfall throughout the year, including during its driest month. Şimleu Silvaniei 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, February, December, when temperatures can drop to -3°C. Snowfall occurs from January to December, with around 67cm accumulating over the season.

Temperatures in Şimleu Silvaniei vary considerably across the year, with a 31°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 28°C and the mean temperature sits around 22°C. The coldest month is January, when overnight lows fall to -3°C and the daily average is 0°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 6°C shift in average temperatures.

Şimleu Silvaniei is a relatively dry area, receiving approximately 795mm of precipitation annually, which averages out to around 66mm per month. The wettest month is July, averaging 95mm of rainfall. June and May also tend to see above-average precipitation. The driest month is October, with just 49mm. That's 46mm less than July, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 67cm accumulating over the season. January typically sees the most snow at around 22cm.

Şimleu Silvaniei is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.

It is currently autumn in Şimleu Silvaniei, which began on September 23, 2026. Şimleu Silvaniei 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 28°C, while the coldest stretch bottoms out in January near -3°C. Winter is next, beginning on December 21, 2026 (87 days from now).

The best time to visit Şimleu Silvaniei is during May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 81mm per month. By contrast, January can be quite cold with temperatures dropping to -3°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 Şimleu Silvaniei 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.