Saltillo climate
Saltillo (Coahuila, Mexico) has a hot semi-arid climate (Köppen BSh). The average temperature over the year is 19 °C66 °F, and about 371 mm15 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Saltillo climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 2067 | 439 | 1253 | 140.5 | 3 |
| Feb | 2373 | 643 | 1458 | 100.4 | 1 |
| Mar | 2678 | 947 | 1763 | 180.7 | 0 |
| Apr | 3085 | 1254 | 2170 | 110.4 | 0 |
| May | 3188 | 1560 | 2374 | 271.1 | 0 |
| Jun | 3289 | 1762 | 2476 | 391.5 | 0 |
| Jul | 3087 | 1661 | 2374 | 712.8 | 0 |
| Aug | 3087 | 1661 | 2374 | 512.0 | 0 |
| Sep | 2781 | 1458 | 2170 | 803.1 | 0 |
| Oct | 2680 | 1253 | 1966 | 271.1 | 0 |
| Nov | 2373 | 745 | 1559 | 140.6 | 1 |
| Dec | 2069 | 540 | 1254 | 90.3 | 2 |
| Year | 3289 | 439 | 1966 | 37115 | 7 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 51% | 48% | 4.0 | 10:43 |
| Feb | 44% | 45% | 4.9 | 11:16 |
| Mar | 41% | 45% | 5.7 | 11:57 |
| Apr | 37% | 47% | 6.4 | 12:44 |
| May | 45% | 46% | 6.5 | 13:22 |
| Jun | 52% | 42% | 6.8 | 13:43 |
| Jul | 57% | 47% | 6.4 | 13:34 |
| Aug | 58% | 41% | 6.4 | 13:01 |
| Sep | 66% | 52% | 5.2 | 12:16 |
| Oct | 61% | 37% | 5.0 | 11:31 |
| Nov | 57% | 38% | 4.2 | 10:52 |
| Dec | 51% | 44% | 3.8 | 10:34 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Saltillo is like
The warmest month is June, with an average high of 32 °C89 °F and a low of 17 °C62 °F. The coldest is January, when highs average 20 °C67 °F and lows 4 °C39 °F. There is a clear seasonal cycle, with 12.4 °C22.4 °F between the average temperature of the warmest and the coolest month.
It is dry, with about 371 mm15 in of precipitation per year. The wettest three-month stretch is July–September, which brings 54% of the annual total. Months with less than 20 mm0.8 in on average: November–April. The wettest month is September (80 mm3.1 in), the driest is December (9 mm0.3 in).
Relative humidity ranges from 37% in April to 66% in September. The clearest skies (lowest average cloud amount, 37%) are typical of October. Average wind speed near the ground ranges from 9 km/h (5 mph) in November to 11 km/h (7 mph) in May. Daylight lasts from about 10.6 hours in December to 13.7 hours in June.
Best time to visit Saltillo
Based on these averages, the most comfortable months for sightseeing and outdoor activities are September–April: average highs of 20 °C67 °F to 30 °C85 °F with 9 mm0.3 in to 80 mm3.1 in of precipitation per month.
The most challenging month is June, which is hot, with average highs of 32 °C89 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Saltillo
- Winter (December–February) — highs 2067 to 23 °C73 °F, lows 439 to 6 °C43 °F, about 11 mm0.4 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Spring (March–May) — highs 2678 to 31 °C88 °F, lows 947 to 15 °C60 °F, about 19 mm0.7 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 3087 to 32 °C89 °F, lows 1661 to 17 °C62 °F, about 54 mm2.1 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an extra layer for the cooler mornings and evenings.
- Autumn (September–November) — highs 2373 to 27 °C81 °F, lows 745 to 14 °C58 °F, about 40 mm1.6 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
How Saltillo compares
Compared with Monterrey, about 72 km to the northeast, Saltillo is on average 5.6 °C10.1 °F cooler and receives 30% less precipitation (371 mm15 in vs 530 mm21 in). The difference is largest in December (5.9 °C10.7 °F cooler).
Of the 96 places in Mexico covered by World Climates, Saltillo is the 68th warmest by annual mean temperature and the 83rd wettest by annual precipitation. See all of them on the Mexico climate page.
Places in other countries with the most similar temperature and rainfall pattern (seasons shifted for the other hemisphere where needed): Klerksdorp (South Africa, BSh), Kimberley (South Africa, BSh) and Virginia (South Africa, BSk).
Nearby places
- Monterrey 72 km · 24 °C76 °F · 530 mm21 in
- Guadalupe 77 km · 23 °C74 °F · 709 mm28 in
- Ciudad General Escobedo 78 km · 24 °C75 °F · 504 mm20 in
- Ciudad Apodaca 89 km · 23 °C74 °F · 636 mm25 in
- Monclova 170 km · 23 °C73 °F · 398 mm16 in
- Torreón 245 km · 22 °C71 °F · 274 mm11 in
- Gómez Palacio 253 km · 22 °C72 °F · 306 mm12 in
- Ciudad Victoria 264 km · 25 °C77 °F · 814 mm32 in
Frequently asked questions
What is the warmest month in Saltillo?
June is the warmest month in Saltillo, with an average high of 32 °C (89 °F) and an average low of 17 °C (62 °F).
What is the coldest month in Saltillo?
January is the coldest month, with an average high of 20 °C (67 °F) and an average low of 4 °C (39 °F).
When does it rain the most in Saltillo?
September is the wettest month with about 80 mm (3.1 in) of precipitation; December is the driest with about 9 mm (0.3 in).
What is the best time to visit Saltillo?
Judging by long-term averages, the most comfortable months are September–April.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.