Climate Insights for Sīrē

The climate in Sīrē is temperate. The average annual temperature is 17°C and approximately 1434mm of precipitation falls per year. September is the wettest month, receiving around 333mm of rainfall. Sīrē sits near the equator, so seasonal temperature differences are minimal throughout the year.

Sīrē sees moderate temperature variation throughout the year, ranging from 9°C to 25°C. The warmest month is March, when average highs reach 25°C and the mean temperature sits around 19°C. December is the coolest month, with minimum temperatures around 9°C and an average of 16°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs.

Sīrē is a fairly wet location, receiving approximately 1434mm of precipitation annually, which averages out to around 119mm per month. The wettest month is September, averaging 333mm of rainfall. August and July also tend to see above-average precipitation. The driest month is December, with just 9mm. That's 324mm less than September, 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.

Sīrē 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 September, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months.

It is currently summer in Sīrē, which began on June 21, 2026. Sīrē sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in March at around 25°C, while the coldest stretch bottoms out in December near 9°C. Autumn is next, beginning on September 23, 2026 (10 days from now).

The best time to visit Sīrē is during January, February, March, June, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 35mm per month. 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 Sīrē 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. 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.