Climate Insights for Mersa

The climate in Mersa is warm and mild. The average annual temperature is 22°C and approximately 569mm of precipitation falls per year. April is the wettest month, receiving around 117mm 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 12°C.

Mersa sees moderate temperature variation throughout the year, ranging from 12°C to 32°C. The warmest month is June, when average highs reach 32°C and the mean temperature sits around 25°C. December is the coolest month, with minimum temperatures around 12°C and an average of 19°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs.

Mersa is a relatively dry area, receiving approximately 569mm of precipitation annually, which averages out to around 47mm per month. The wettest month is April, averaging 117mm of rainfall. March and August also tend to see above-average precipitation. The driest month is June, with just 1mm. That's 117mm 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 6km/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 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 5km/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 summer in Mersa, which began on June 21, 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 32°C, while the coldest stretch bottoms out in December near 12°C. Autumn is next, beginning on September 23, 2026 (10 days from now).

The best time to visit Mersa is during January, February, May, July, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 28mm per month. By contrast, June can be uncomfortably hot with temperatures reaching 32°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

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.