Climate Insights for Santa Rosalía

The climate in Santa Rosalía is warm and mild. The average annual temperature is 23°C and approximately 144mm of precipitation falls per year. September is the wettest month, receiving around 62mm of rainfall. Santa Rosalía 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, December, February, when temperatures can drop to 12°C.

Temperatures in Santa Rosalía vary considerably across the year, with a 22°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 34°C and the mean temperature sits around 30°C. January is the coolest month, with minimum temperatures around 12°C and an average of 16°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between May and June, with a 5°C shift in average temperatures.

Santa Rosalía is a quite dry location, receiving approximately 144mm of precipitation annually, which averages out to around 12mm per month. The wettest month is September, averaging 62mm of rainfall. August and July also tend to see above-average precipitation. The driest month is May, with just 0mm. That's 62mm 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.

Santa Rosalía is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.

It is currently summer in Santa Rosalía, which began on June 21, 2026. Santa Rosalía 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 34°C, while the coldest stretch bottoms out in January near 12°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.

The best time to visit Santa Rosalía is during January, February, March, April, May, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 6mm per month. By contrast, July can be uncomfortably hot with temperatures reaching 34°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Santa Rosalía 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.