Climate averages 1991–2020
Guamúchil weather
by month.
See how the year changes. June has the highest average daily maximum; May has the lowest average monthly rainfall.
Pleasant-weather months by our simple rule: JanuaryFebruaryDecember
Long-term climate patterns, not a forecast for a particular trip.
Across the year Guamúchil averages a daytime high of 32.0°C and a nighttime low of 18.7°C, with about 584 mm of rain on roughly 63 days. June is the warmest month (average high 36.2°C) and December the coolest (27.3°C). August is the wettest month with 166 mm; May is the driest with under 1 mm.
Months with pleasant weather by a simple rule (average high between 18°C and 29°C, average low of at least 5°C and at most 8 rain days): January, February and December. This looks at temperature and rain only, not humidity, wind, sea temperature or crowds.
The annual picture
A year in Guamúchil
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
Guamúchil climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.4°C12.0°C | 12.0°C | 19 | 1.9 | 10.711 h |
| February | 28.5°C12.7°C | 12.7°C | 16 | 1.8 | 11.311 h |
| March | 30.7°C14.2°C | 14.2°C | 4.0 | 0.6 | 12.012 h |
| April | 33.1°C16.3°C | 16.3°C | 1.3 | 0.3 | 12.713 h |
| May | 35.4°C19.3°C | 19.3°C | 0.7 | 0.3 | 13.413 h |
| June | 36.2°C24.2°C | 24.2°C | 15 | 2.8 | 13.714 h |
| July | 34.5°C25.4°C | 25.4°C | 130 | 15.1 | 13.614 h |
| August | 33.4°C25.3°C | 25.3°C | 166 | 17.5 | 13.013 h |
| September | 32.6°C24.5°C | 24.5°C | 131 | 14.0 | 12.312 h |
| October | 33.8°C21.7°C | 21.7°C | 35 | 4.0 | 11.612 h |
| November | 31.1°C16.7°C | 16.7°C | 44 | 2.2 | 10.911 h |
| December | 27.3°C12.8°C | 12.8°C | 22 | 2.1 | 10.611 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
Nearby cities
- GuasaveMexico · 41 kmHigh 31.7°C · Low 19.1°C · 416 mm rain a year
- Los MochisMexico · 99 kmHigh 31.1°C · Low 19.7°C · 333 mm rain a year
- CuliacánMexico · 100 kmHigh 32.0°C · Low 19.0°C · 638 mm rain a year
- NavojoaMexico · 225 kmHigh 32.6°C · Low 18.4°C · 371 mm rain a year
- La Paz, MexicoMexico · 269 kmHigh 29.6°C · Low 19.8°C · 151 mm rain a year
- Hidalgo del ParralMexico · 291 kmHigh 25.3°C · Low 10.7°C · 497 mm rain a year
- Ciudad ObregónMexico · 292 kmHigh 32.4°C · Low 18.2°C · 329 mm rain a year
- MazatlánMexico · 300 kmHigh 28.5°C · Low 20.9°C · 689 mm rain a year
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 limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC-7, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 25.50°, -108.10° (5 km from the city centre). Rain comes from the 0.25° cell at 25.50°, -108.00°. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.