Weather and the best time to visit
November to March is mild; May to October is very hot, and July to September brings rain. What to expect in each season.
Sunset on the southern Sonora coast. · Photo: OCV Navojoa (video promocional)
Southern Sonora is warm and dry most of the year. Over the year, temperatures usually range from about 10 °C (50 °F) to 37 °C (99 °F). The figures in this guide are averages for Navojoa; the coast and the sierra may differ.
November to March: the mild season
Sunny, pleasant days, ideal for walking around the towns, watching the sunset at the beach and birdwatching on the coast when migratory species arrive. December and January nights can drop to about 10 °C (50 °F): bring a light jacket.
April to June: dry heat
It gets warmer every week, and from mid-May highs are above 34 °C (93 °F). Plan outdoor activities for early morning or sunset.
July to September: heat and rain
July is the hottest month, with average highs of 36 °C (97 °F). It is also the rainy season: July and August are the wettest months, with afternoon storms.
October
The heat starts to ease by mid-month and pleasant days return.
Tips
Drink water often and wear a hat and sunscreen all year round.
In summer, avoid long walks around midday.
In the rainy season, check the forecast before you go: some dirt roads can become impassable.
Source: Navojoa climate averages published by Weather Spark.