Climate averages 1991–2020
Mazatlán weather
in December.
A warm, very dry month: the 10th warmest and the 4th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Mazatlán: daytime highs average 26.0°C and nights cool to about 17.6°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 9.3 mm of rain on roughly 1 day, which makes December a very dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 44 min on an average December day.
The nearest other city in this atlas is Victoria de Durango (200 km away). In December its highs average 20.8°C, 5.2°C cooler than Mazatlán, with 9.7 mm of rain.
Among the 153 cities listed in Mexico, Mazatlán ranks joint 28th of 153 for the warmest December highs and 60th of 153 for the driest December (rainfall, lowest first). The mean December high of those 153 cities is 22.7°C; Mazatlán is 3.3°C warmer than that mean.
From December to January, average highs fall by 0.4°C to 25.5°C, and monthly rainfall rises from 9.3 mm to 15 mm.
The annual picture
December 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
Mazatlán climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.5°C16.5°C | 16.5°C | 15 | 1.5 | 10.911 h |
| February | 25.9°C16.5°C | 16.5°C | 15 | 1.2 | 11.411 h |
| March | 26.8°C17.0°C | 17.0°C | 3.2 | 0.4 | 12.012 h |
| April | 28.4°C18.3°C | 18.3°C | 0.7 | 0.2 | 12.713 h |
| May | 30.2°C20.7°C | 20.7°C | 0.6 | 0.2 | 13.213 h |
| June | 31.2°C24.2°C | 24.2°C | 25 | 3.1 | 13.514 h |
| July | 30.7°C25.3°C | 25.3°C | 132 | 14.3 | 13.413 h |
| August | 30.2°C25.4°C | 25.4°C | 184 | 18.8 | 12.913 h |
| September | 29.7°C25.1°C | 25.1°C | 205 | 19.0 | 12.312 h |
| October | 29.6°C23.8°C | 23.8°C | 65 | 6.7 | 11.612 h |
| November | 28.1°C20.5°C | 20.5°C | 35 | 2.0 | 11.011 h |
| December, selected | 26.0°C17.6°C | 17.6°C | 9.3 | 1.4 | 10.711 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
December in nearby cities
- Victoria de Durango in DecemberMexico · 200 kmHigh 20.8°C · Low 4.9°C · 9.7 mm rain
- Culiacán in DecemberMexico · 202 kmHigh 28.0°C · Low 13.4°C · 17 mm rain
- Tepic in DecemberMexico · 247 kmHigh 25.4°C · Low 13.7°C · 31 mm rain
- Guamúchil in DecemberMexico · 300 kmHigh 27.3°C · Low 12.8°C · 22 mm rain
- Puerto Vallarta in DecemberMexico · 315 kmHigh 28.5°C · Low 19.5°C · 25 mm rain
- Guasave in DecemberMexico · 333 kmHigh 27.0°C · Low 13.4°C · 15 mm rain
- San José del Cabo in DecemberMexico · 336 kmHigh 26.2°C · Low 16.6°C · 9.2 mm rain
- Cabo San Lucas in DecemberMexico · 359 kmHigh 25.7°C · Low 19.3°C · 9.8 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 Mazatlán) is explained once on the Mazatlán year overview and on the Sources, method and limits page.