Climate Insights for Oued Sly

The climate in Oued Sly is warm and mild. The average annual temperature is 19°C and approximately 378mm of precipitation falls per year. March is the wettest month, receiving around 72mm of rainfall. Oued Sly is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to 5°C.

Temperatures in Oued Sly vary considerably across the year, with a 33°C difference between the coldest and warmest months. July is the hottest month, with daytime highs reaching 38°C and an average of 30°C. January is the coolest month, with minimum temperatures around 5°C and an average of 10°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.

Oued Sly is a quite dry location, receiving approximately 378mm of precipitation annually, which averages out to around 31mm per month. The wettest month is March, averaging 72mm of rainfall. November and January also tend to see above-average precipitation. The driest month is July, with just 2mm. That's 70mm less than March, 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.

Oued Sly is mildly breezy, with an average annual wind speed of 14km/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 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 12km/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 spring in Oued Sly, which began on March 20, 2026. Oued Sly 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 July at around 38°C, while the coldest stretch bottoms out in January near 5°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Oued Sly is during April, May, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 35mm per month. By contrast, July can be uncomfortably hot with highs reaching 38°C, while January is the coldest period with lows dropping to 5°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 Oued Sly 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.