Climate Insights for Guerrero Negro

The climate in Guerrero Negro is warm and mild. The average annual temperature is 20°C and approximately 72mm of precipitation falls per year. September is the wettest month, receiving around 17mm of rainfall. Guerrero Negro is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, September, July. The coldest months are January, December, February, when temperatures can drop to 11°C.

Guerrero Negro sees moderate temperature variation throughout the year, ranging from 11°C to 30°C. The warmest month is August, when average highs reach 30°C and the mean temperature sits around 24°C. January is the coolest month, with minimum temperatures around 11°C and an average of 16°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 3°C shift in average temperatures.

Guerrero Negro is a quite dry location, receiving approximately 72mm of precipitation annually, which averages out to around 6mm per month. The wettest month is September, averaging 17mm of rainfall. December and March also tend to see above-average precipitation. The driest month is May, with just 0mm. 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.

Guerrero Negro is moderately windy, with an average annual wind speed of 28km/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 32km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in December, with average winds dropping to 22km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 10km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 23km/h in winter, 31km/h in spring, 30km/h in summer, 26km/h in autumn.

It is currently spring in Guerrero Negro, which began on March 20, 2026. Guerrero Negro 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 August at around 30°C, while the coldest stretch bottoms out in January near 11°C. Summer is next, beginning on June 21, 2026 — 86 days from now.

The best time to visit Guerrero Negro is during January, February, March, April, May, June, July, August, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 6mm per month. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Guerrero Negro 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.