Hermosillo
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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.

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

Hermosillo Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Hermosillo - and find the best time to visit.

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 records 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 2026, 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

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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.

  • Swimming
    10/10
  • Camping
    9/10

Hermosillo 3-Day Forecast

More climate data for Hermosillo

Popular in July

Where to go in July - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.