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When to go · Hermosillo

Hermosillo in September

Avoid month. Listed as a month to avoid: Jun–Sep (extreme heat, 40 °C+).

Key facts

Verdict
Avoid
Temperature
38°C / 25°C
average high / low
Rain days
5
Crowds
Low
Mexico overall
Prices
Low
Mexico overall

Verdict

AvoidBest and avoid months for Hermosillo

Listed as a month to avoid: Jun–Sep (extreme heat, 40 °C+).

Weather in September

Long-term averages
  • HermosilloHighs around 37.5 °C, lows around 24.6 °C, rain on about 5 days

Crowds and prices

Crowds · Mexico overall
Low
Prices · Mexico overall
Low

Mexico overall: Peak hurricane month on both coasts; Independence Day (16 Sep) parties.

What to pack

  • Light, breathable clothes, a sun hat and sunscreen

Build the full packing list for your trip →

Across Mexico in September →