Climate Insights for Riāsi

The climate in Riāsi is temperate. The average annual temperature is 16°C and approximately 1681mm of precipitation falls per year. July is the wettest month, receiving around 415mm of rainfall. Riāsi is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: June, August, July. The coldest months are January, December, February, when temperatures can drop to 0°C. Light snow can occur between January and December.

Temperatures in Riāsi vary considerably across the year, with a 28°C difference between the coldest and warmest months. The warmest month is June, when average highs reach 28°C and the mean temperature sits around 23°C. January is the coolest month, with minimum temperatures around 0°C and an average of 5°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.

Riāsi is a fairly wet location, receiving approximately 1681mm of precipitation annually, which averages out to around 140mm per month. The wettest month is July, averaging 415mm of rainfall. August and June also tend to see above-average precipitation. The driest month is October, with just 29mm. That's 386mm 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 42cm annually. January is the snowiest month with approximately 22cm.

Riāsi is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 9km/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 2km/h between the calmest and windiest months.

It is currently spring in Riāsi, which began on March 20, 2026. Riāsi 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 June at around 28°C, while the coldest stretch bottoms out in January near 0°C. Summer is next, beginning on June 21, 2026 — 85 days from now.

The best time to visit Riāsi is during May and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 47mm per month. By contrast, June can be uncomfortably hot with highs reaching 28°C, while January is the coldest period with lows dropping to 0°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 Riāsi 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.