Climate averages 1991–2020
Salina Cruz weather
by month.
See how the year changes. May has the highest average daily maximum; February has the lowest average monthly rainfall.
Pleasant-weather months by our simple rule: JanuaryDecember
Long-term climate patterns, not a forecast for a particular trip.
Across the year Salina Cruz averages a daytime high of 30.7°C and a nighttime low of 23.8°C, with about 909 mm of rain on roughly 86 days. May is the warmest month (average high 32.5°C) and January the coolest (28.5°C). June is the wettest month with 233 mm; February is the driest with 2.6 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 and December. This looks at temperature and rain only, not humidity, wind, sea temperature or crowds.
The annual picture
A year in Salina Cruz
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
Salina Cruz climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.5°C21.1°C | 21.1°C | 3.0 | 0.8 | 11.311 h |
| February | 29.7°C21.6°C | 21.6°C | 2.6 | 0.8 | 11.612 h |
| March | 30.9°C22.8°C | 22.8°C | 3.8 | 1.0 | 12.012 h |
| April | 32.1°C24.4°C | 24.4°C | 6.2 | 1.7 | 12.512 h |
| May | 32.5°C25.4°C | 25.4°C | 67 | 9.9 | 12.913 h |
| June | 31.0°C25.1°C | 25.1°C | 233 | 17.7 | 13.113 h |
| July | 31.9°C25.5°C | 25.5°C | 122 | 11.5 | 13.013 h |
| August | 31.9°C25.4°C | 25.4°C | 163 | 14.5 | 12.713 h |
| September | 30.5°C24.9°C | 24.9°C | 206 | 17.3 | 12.212 h |
| October | 30.2°C24.4°C | 24.4°C | 84 | 8.6 | 11.812 h |
| November | 29.6°C23.2°C | 23.2°C | 15 | 1.7 | 11.411 h |
| December | 29.0°C22.0°C | 22.0°C | 3.8 | 0.8 | 11.211 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
- Heroica Ciudad de Juchitán de ZaragozaMexico · 34 kmHigh 30.8°C · Low 23.2°C · 798 mm rain a year
- OaxacaMexico · 191 kmHigh 25.6°C · Low 14.1°C · 762 mm rain a year
- MinatitlánMexico · 214 kmHigh 29.0°C · Low 22.4°C · 1,879 mm rain a year
- TuxtlaMexico · 231 kmHigh 29.3°C · Low 20.1°C · 1,774 mm rain a year
- CoatzacoalcosMexico · 233 kmHigh 28.7°C · Low 23.0°C · 1,890 mm rain a year
- TuxtepecMexico · 235 kmHigh 29.6°C · Low 22.0°C · 2,349 mm rain a year
- San Cristóbal de las CasasMexico · 279 kmHigh 21.0°C · Low 11.8°C · 2,193 mm rain a year
- Cárdenas, MexicoMexico · 280 kmHigh 30.2°C · Low 22.5°C · 1,632 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-6, 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 16.20°, -95.20° (3 km from the city centre), adjusted up by 0.1°C for the difference between the city's elevation (8 m) and the cell's (20 m). Rain comes from the 0.25° cell at 16.25°, -95.25°. 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.