Climate averages 1991–2020
Heroica Guaymas weather
in July.
A hot, very dry month: the 2nd warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Heroica Guaymas: daytime highs average 33.8°C and nights cool to about 28.1°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 9.8 mm of rain on roughly 2 days, which makes July a very dry month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 44 min on an average July day.
The nearest other city in this atlas is Ciudad Obregón (106 km away). In July its highs average 37.3°C, 3.5°C warmer than Heroica Guaymas, with 57 mm of rain.
Among the 153 cities listed in Mexico, Heroica Guaymas ranks joint 21st of 153 for the warmest July highs and 6th of 153 for the driest July (rainfall, lowest first). The mean July high of those 153 cities is 28.0°C; Heroica Guaymas is 5.8°C warmer than that mean.
From July to August, average highs rise by 0.1°C to 33.9°C, and monthly rainfall rises from 9.8 mm to 26 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Heroica Guaymas climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 21.9°C12.8°C | 12.8°C | 8.4 | 1.3 | 10.611 h |
| February | 22.6°C13.5°C | 13.5°C | 11 | 1.5 | 11.211 h |
| March | 24.7°C15.2°C | 15.2°C | 5.4 | 0.5 | 12.012 h |
| April | 27.0°C17.6°C | 17.6°C | 1.3 | 0.2 | 12.813 h |
| May | 29.8°C20.8°C | 20.8°C | 0.3 | 0.1 | 13.514 h |
| June | 32.7°C25.1°C | 25.1°C | 1.2 | 0.2 | 13.914 h |
| July, selected | 33.8°C28.1°C | 28.1°C | 9.8 | 2.4 | 13.714 h |
| August | 33.9°C28.5°C | 28.5°C | 26 | 4.5 | 13.113 h |
| September | 32.7°C27.0°C | 27.0°C | 59 | 5.5 | 12.312 h |
| October | 30.6°C22.8°C | 22.8°C | 17 | 2.2 | 11.512 h |
| November | 26.1°C17.5°C | 17.5°C | 12 | 1.3 | 10.811 h |
| December | 22.0°C13.5°C | 13.5°C | 12 | 1.5 | 10.410 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Ciudad Obregón in JulyMexico · 106 kmHigh 37.3°C · Low 26.6°C · 57 mm rain
- Hermosillo in JulyMexico · 130 kmHigh 38.3°C · Low 26.6°C · 40 mm rain
- Navojoa in JulyMexico · 172 kmHigh 36.8°C · Low 26.4°C · 64 mm rain
- Los Mochis in JulyMexico · 303 kmHigh 35.1°C · Low 26.6°C · 52 mm rain
- Guasave in JulyMexico · 356 kmHigh 34.8°C · Low 25.9°C · 70 mm rain
- Nogales in JulyMexico · 377 kmHigh 32.6°C · Low 20.4°C · 94 mm rain
- Guamúchil in JulyMexico · 392 kmHigh 34.5°C · Low 25.4°C · 130 mm rain
- Cuauhtémoc in JulyMexico · 399 kmHigh 25.7°C · Low 14.9°C · 119 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Heroica Guaymas) is explained once on the Heroica Guaymas year overview and on the Sources, method and limits page.