Climate Insights for Mersa

The climate in Mersa is warm and mild. The average annual temperature is 19°C and approximately 1085mm of precipitation falls per year. April is the wettest month, receiving around 222mm of rainfall. Mersa is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: June, July, May. The coldest months are December, January, November, when temperatures can drop to 10°C.

Mersa sees moderate temperature variation throughout the year, ranging from 10°C to 28°C. The warmest month is June, when average highs reach 28°C and the mean temperature sits around 22°C. December is the coolest month, with minimum temperatures around 10°C and an average of 16°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs.

Mersa is a moderately rainy area, receiving approximately 1085mm of precipitation annually, which averages out to around 90mm per month. The wettest month is April, averaging 222mm of rainfall. August and July also tend to see above-average precipitation. The driest month is December, with just 6mm. That's 216mm less than April, 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.

Mersa is relatively calm, with an average annual wind speed of 1km/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 April, 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 spring in Mersa, which began on March 20, 2026. Mersa 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 December near 10°C. Summer is next, beginning on June 21, 2026 — 3 days from now.

The best time to visit Mersa is during January, February, May, June, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 40mm 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 Mersa 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.