Hermosillo Weather in July
Hermosillo in July sees extremely high temperatures, with highs around 39°C (102°F) and overnight lows of 27°C (81°F). Around 48 mm (1.9 in) of rainfall is typical, so a light rain jacket is a sensible addition to your bag.
Rainfall in Hermosillo in July
You can expect rain on around 8 days based on historical patterns, with 48 mm (1.9 in) average for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Hermosillo in July
In July, expect extremely high temperatures in Hermosillo, with highs of 39°C (102°F) and lows of 27°C (81°F) at night. For most visitors, the main thing to prepare for is the heat during the day. With overnight lows of 27°C (81°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.
Sunshine in Hermosillo in July
The month enjoys around 271 hours of sunshine, creating mostly sunny days with good weather conditions.July in Hermosillo has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Hermosillo's climate page.
Hermosillo Temperature in July
Min Temperature
27°C (81°F)
Max Temperature
39°C (102°F)
Chance of Rain
27%
Precipitation
48 mm (1.9 in)
Rainy days
8 days
Humidity
49%
Sunshine
271 hours
Percentage Sunshine
Daily Historical Temperatures
48-year average (1976-2025)
Based on our historical records, temperatures in Hermosillo typically stay consistent throughout July, with daily highs averaging around 39°C (102°F). Nights are warm, with lows around 27°C (81°F).
Average temperatures in July
Daily Historical Precipitation
48-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Historical weather for Hermosillo in July
Browse day-by-day weather records for Hermosillo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hermosillo historical weather extremes in July
Based on weather observations in Hermosillo between 2005 and 2025, these are the recorded extremes during July.
- On July 1, 2011, temperatures climbed to 48°C (118°F), marking the warmest July day on record.
- On July 23, 2005, Hermosillo saw its coldest July day with temperatures maxing out at 27°C (81°F).
- Hermosillo registered its coldest July night on July 23, 2025, with temperatures dropping to 23°C (73°F).
Best Places in Mexico in July
Find out more about the weather in Mexico and which places have the best travel conditions in this month. See all of Mexico in July →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Hermosillo in July
Get ready for hot weather in July! Lightweight, breathable fabrics are your best friend during this month. Cotton and linen shirts, shorts, sundresses, and sandals will keep you comfortable. Light colors help reflect the heat, avoid wearing black. Rain is likely on several days, so bring a good rain jacket. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Hermosillo in July
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Hermosillo's climate page.
Temperature Rainfall Sunshine Humidity
See the full Hermosillo climate overview or explore weather in Mexico.
