Hermosillo weather by month & the best time to visit
Mexico · city break · semi-arid climate
The best time to visit Hermosillo is April — its sunniest month (Sunshine Score 100/100), with February and March close behind. Hermosillo averages about 3,844 hours of sunshine a year. Daytime highs around 32°C / 90°F and roughly 2 mm of rain in April.
When is the best time to visit Hermosillo?
For sunshine, the best time to visit Hermosillo is April, then February and March. The dullest month is June (20/100, 12 mm of rain). The full month-by-month picture is in the table below.
How sunny is Hermosillo?
Hermosillo is one of the sunniest places on Earth: about 3,844 hours of sunshine a year. 80 Sunshine Score points separate April (100) from June (20), so the month you pick matters. It ranks #2 of 62 destinations in Mexico for annual sunshine, above the national median of 3,138 hours. Rain is strongly seasonal here: roughly 75% of the year's 383 mm falls in the three months around August.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 97 | 23° / 73°F | 8° / 46°F | 16 mm | 4 |
| February | 98 | 25° / 77°F | 9° / 48°F | 13 mm | 6 |
| March | 98 | 29° / 84°F | 12° / 54°F | 9 mm | 8 |
| April | 100 | 32° / 90°F | 14° / 57°F | 2 mm | 10 |
| May | 70 | 35° / 95°F | 18° / 64°F | 1 mm | 11 |
| June | 20 | 40° / 104°F | 23° / 73°F | 12 mm | 11 |
| July | 40 | 37° / 99°F | 26° / 79°F | 110 mm | 11 |
| August | 49 | 36° / 97°F | 25° / 77°F | 99 mm | 10 |
| September | 51 | 36° / 97°F | 23° / 73°F | 80 mm | 9 |
| October | 88 | 33° / 91°F | 18° / 64°F | 14 mm | 7 |
| November | 97 | 28° / 82°F | 13° / 55°F | 15 mm | 5 |
| December | 98 | 23° / 73°F | 9° / 48°F | 12 mm | 4 |
Nearest destinations
Head-to-head
How Hermosillo compares month by month: Hermosillo vs Tucson · Hermosillo vs Ciudad Obregón · Hermosillo vs Los Mochis · all comparisons
Hermosillo: questions and answers
What kind of destination is Hermosillo?
Hermosillo is a city break in Mexico with a semi-arid climate.
How many hours of sunshine does Hermosillo get a year?
Hermosillo gets about 3,844 hours of sunshine a year, at its best around April.
When is the best time to visit Hermosillo?
The sunniest time to visit Hermosillo is April, when the Sunshine Score peaks at 100/100 (with February and March close behind). Expect daytime highs around 32°C / 90°F.
What is the least sunny month in Hermosillo?
June is the least sunny month in Hermosillo, scoring 20/100 with about 12 mm of rain.
How strong is the sun in Hermosillo?
The typical midday UV index in Hermosillo peaks around 11 (extreme) in May, easing to about 4 (moderate) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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