Best Time to Visit Hermosillo, Sonora, Mexico
Hermosillo is at its sunniest and driest in January–December.
The best time to visit Hermosillo for sunny, dry weather is October–June — 9 months of the year fit our sunny profiles at this specific location. The drier stretch runs through February–June and October–November; the wetter half falls in July–September and December–January. At the city itself, monthly average temperatures range from 15°C / 59°F in January to 31.6°C / 88.9°F in July, with rainfall from 3 mm / 0.1 in (April) to 82 mm / 3.2 in (July). These are point-value climate normals sampled at Hermosillo, Sonora, Mexico's coordinates — usually more actionable for travellers than the country-wide average. Hermosillo's climate is broadly seasonal. The full month-by-month table below lets you match your travel window against our five weather profiles.
Recommended months
| Month | Temp | Rain | Feels like |
|---|---|---|---|
| January | 15°C59°F | 20 mm0.8″ | Sunny & Mild |
| February | 16.3°C61.3°F | 15 mm0.6″ | Sunny & Mild |
| March | 18.4°C65.1°F | 6 mm0.2″ | Sunny & Mild |
| April | 21.4°C70.5°F | 3 mm0.1″ | Sunny & Warm, Sunny & Mild |
| May | 24.8°C76.6°F | 3 mm0.1″ | Sunny & Warm |
| June | 29.3°C84.7°F | 6 mm0.2″ | Sunny & Hot |
| October | 25°C77°F | 12 mm0.5″ | Sunny & Hot, Sunny & Warm |
| November | 19.2°C66.6°F | 10 mm0.4″ | Sunny & Mild |
| December | 15.3°C59.5°F | 23 mm0.9″ | Sunny & Mild |
Frequently asked questions
When is the best time to visit Hermosillo?
The best time to visit Hermosillo for sunny, dry weather is January, February, March, April, May, June, October, November, December. At the city itself, the warmest month is July averaging 31.6°C / 88.9°F, and the driest is April with about 3 mm / 0.1 in of rain. These are point-value climate normals sampled at Hermosillo's coordinates.
When is the rainy season in Hermosillo?
The rainy season at Hermosillo, Sonora runs through July–September and December–January, when monthly rainfall exceeds the annual median of about 15 mm / 0.6 in. The wettest single month is July (82 mm / 3.2 in).
What is the driest month in Hermosillo?
The driest month in Hermosillo is April, averaging about 3 mm / 0.1 in of rainfall. Temperature that month averages 21.4°C / 70.5°F.
What months should I avoid visiting Hermosillo?
The least comfortable months for travel to Hermosillo — based on point-value climate at the city — are January, February, March, July, August, September, December. These are the wettest or coolest months at this location. Rainfall peaks at 82 mm / 3.2 in in July, and the coldest month averages 15°C / 59°F.
Is Hermosillo climate different from Mexico overall?
Yes, usually. Our Hermosillo figures are point-value climate normals sampled at the city itself, while our Mexico figures are area-weighted averages across the whole country. The two can diverge substantially in geographically diverse or elevation-varied countries. The month-by-month table below reflects Hermosillo specifically — usually the more actionable data for a traveller planning to spend time in the city.