Climate averages 1991–2020
Heroica Guaymas weather
in August.
A hot, fairly dry month: the warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Heroica Guaymas: daytime highs average 33.9°C and nights cool to about 28.5°C. By daytime temperature it is the warmest month of the year.
Expect about 26 mm of rain on roughly 5 days, which makes August a fairly dry month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 08 min on an average August day.
The nearest other city in this atlas is Ciudad Obregón (106 km away). In August its highs average 36.4°C, 2.5°C warmer than Heroica Guaymas, with 84 mm of rain.
Among the 153 cities listed in Mexico, Heroica Guaymas ranks joint 17th of 153 for the warmest August highs and 7th of 153 for the driest August (rainfall, lowest first). The mean August high of those 153 cities is 27.9°C; Heroica Guaymas is 6.0°C warmer than that mean.
From August to September, average highs fall by 1.2°C to 32.7°C, and monthly rainfall rises from 26 mm to 59 mm.
The annual picture
August 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 | 33.8°C28.1°C | 28.1°C | 9.8 | 2.4 | 13.714 h |
| August, selected | 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
August in nearby cities
- Ciudad Obregón in AugustMexico · 106 kmHigh 36.4°C · Low 26.5°C · 84 mm rain
- Hermosillo in AugustMexico · 130 kmHigh 37.6°C · Low 26.6°C · 51 mm rain
- Navojoa in AugustMexico · 172 kmHigh 35.6°C · Low 26.2°C · 104 mm rain
- Los Mochis in AugustMexico · 303 kmHigh 34.4°C · Low 26.5°C · 92 mm rain
- Guasave in AugustMexico · 356 kmHigh 34.0°C · Low 25.8°C · 114 mm rain
- Nogales in AugustMexico · 377 kmHigh 31.4°C · Low 19.5°C · 92 mm rain
- Guamúchil in AugustMexico · 392 kmHigh 33.4°C · Low 25.3°C · 166 mm rain
- Cuauhtémoc in AugustMexico · 399 kmHigh 24.5°C · Low 14.4°C · 105 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.