Saltillo, Coahuila Weather by Month and Climate Averages

Saltillo, Coahuila gets 304 mm of precipitation a year over about 54 rainy days. May is the warmest month (average high 31°C) and January the coldest (average low 4°C).

Saltillo climate at a glance

Desert climate

Saltillo, Coahuila has hot summers and warm winters. Daytime highs range from about 21°C in January to 30°C in May. July is usually the wettest month. The most comfortable time to visit is typically January to March and October to December, when daytime highs sit near 23°C.

How much rain does Saltillo get?

Saltillo gets 304 mm of precipitation in an average year, spread over about 54 days with measurable rain. That is fewer rainy days than 60% of Mexico.

July is the wettest month, with 59 mm. February is the driest, with 6 mm. July has the most rainy days, about 10.

The longest dry spell in the last five years lasted 61 days, to April 9, 2022.

Saltillo weather by month

Saltillo weather in January

In January, Saltillo averages a high of 21°C and a low of 4°C. It gets 9 mm of precipitation over about 2 rainy days. The sun is out about 61% of daylight hours. The January record high is 31°C (1982) and the record low is -9°C (1985). January is one of the most comfortable months to visit.

Saltillo weather in February

In February, Saltillo averages a high of 23°C and a low of 6°C. It gets 6 mm of precipitation over about 2 rainy days. The sun is out about 64% of daylight hours. The February record high is 33°C (1986) and the record low is -6°C (2016). February is one of the most comfortable months to visit.

Saltillo weather in March

In March, Saltillo averages a high of 25°C and a low of 8°C. It gets 11 mm of precipitation over about 3 rainy days. The sun is out about 63% of daylight hours. The March record high is 36°C (2020) and the record low is -5°C (1980). March is one of the most comfortable months to visit.

Saltillo weather in April

In April, Saltillo averages a high of 28°C and a low of 11°C. It gets 7 mm of precipitation over about 2 rainy days. The sun is out about 61% of daylight hours. The April record high is 39°C (2026) and the record low is 1°C (2025).

Saltillo weather in May

In May, Saltillo averages a high of 31°C and a low of 14°C. It gets 21 mm of precipitation over about 5 rainy days. The sun is out about 70% of daylight hours. The May record high is 41°C (2026) and the record low is 1°C (1997).

Saltillo weather in June

In June, Saltillo averages a high of 31°C and a low of 16°C. It gets 45 mm of precipitation over about 7 rainy days. The sun is out about 69% of daylight hours. The June record high is 41°C (1970) and the record low is 7°C (1991).

Saltillo weather in July

In July, Saltillo averages a high of 30°C and a low of 17°C. It gets 59 mm of precipitation over about 10 rainy days. The sun is out about 54% of daylight hours. The July record high is 41°C (2026) and the record low is 8°C (2019).

Saltillo weather in August

In August, Saltillo averages a high of 29°C and a low of 16°C. It gets 58 mm of precipitation over about 8 rainy days. The sun is out about 60% of daylight hours. The August record high is 41°C (2026) and the record low is 8°C (1988).

Saltillo weather in September

In September, Saltillo averages a high of 27°C and a low of 14°C. It gets 53 mm of precipitation over about 8 rainy days. The sun is out about 57% of daylight hours. The September record high is 38°C (1970) and the record low is 2°C (1989).

Saltillo weather in October

In October, Saltillo averages a high of 26°C and a low of 11°C. It gets 17 mm of precipitation over about 4 rainy days. The sun is out about 65% of daylight hours. The October record high is 37°C (1981) and the record low is -2°C (1997). October is one of the most comfortable months to visit.

Saltillo weather in November

In November, Saltillo averages a high of 23°C and a low of 7°C. It gets 10 mm of precipitation over about 2 rainy days. The sun is out about 67% of daylight hours. The November record high is 33°C (1996) and the record low is -5°C (1976). November is one of the most comfortable months to visit.

Saltillo weather in December

In December, Saltillo averages a high of 21°C and a low of 5°C. It gets 7 mm of precipitation over about 2 rainy days. The sun is out about 64% of daylight hours. The December record high is 33°C (2021) and the record low is -11°C (1983). December is one of the most comfortable months to visit.

Sunshine, humidity and wind in Saltillo

May is the sunniest month in Saltillo, with sunshine about 70% of daylight hours. July is the cloudiest, at 54%. Over the year the sun shines about 63% of daylight hours. Saltillo is sunnier than 82% of Mexico.

Humidity peaks in September at 68% and is lowest in March at 39%.

Saltillo has about 23 days a year above 32°C. Saltillo is cooler than 81% of Mexico.

First and last freeze in Saltillo

The first fall freeze in Saltillo typically comes around December 1, and the last spring freeze around February 16. That leaves a frost-free growing season of about 288 days.

Saltillo weather records

The hottest temperature on record at the Saltillo station is 41°C, on August 20, 2026. The coldest is -11°C, on December 24, 1983.

The wettest day on record brought 160 mm of rain, on September 16, 1988.

34 all-time records have been set at the station since 1970.

The best time to visit Saltillo

The most comfortable time to visit is typically January to March and October to December, when daytime highs sit near 23°C.

Winter (December–February) is warm, with average highs around 22°C and lows near 5°C.

Spring (March–May) is hot, with average highs around 28°C and lows near 11°C.

Summer (June–August) is hot, with average highs around 30°C and lows near 16°C.

Autumn (September–November) is warm, with average highs around 25°C and lows near 11°C.

Monthly climate

MonthPrecipRain daysHumiditySunshineRecord highRecord low
January9.4 mm250%61%31°-9°
February6.1 mm246%64%33°-6°
March11 mm339%63%36°-5°
April7.4 mm241%61%39°
May21 mm544%70%41°
June45 mm751%69%41°
July59 mm1062%54%41°
August58 mm862%60%41°
September53 mm868%57%38°
October17 mm463%65%37°-2°
November9.7 mm262%67%33°-5°
December7.4 mm254%64%33°-11°

From ERA5 reanalysis. Sunshine is estimated from cloud cover.

Saltillo climate questions

How much rain does Saltillo get?

Saltillo gets 304 mm of precipitation in an average year, over about 54 rainy days.

What is the wettest month in Saltillo?

July is the wettest month in Saltillo, with 59 mm. February is the driest, with 6 mm.

How many rainy days does Saltillo have a year?

Saltillo has about 54 days with measurable rain in an average year. July has the most, about 10.

What is the hottest month in Saltillo?

May is the warmest month in Saltillo, with an average high of 31°C.

What is the coldest month in Saltillo?

January is the coldest month in Saltillo, with an average low of 4°C.

What is the record high temperature in Saltillo?

The record high at the Saltillo station is 41°C, set on August 20, 2026. The record low is -11°C, on December 24, 1983.

What is the sunniest month in Saltillo?

May is the sunniest month in Saltillo, with sunshine about 70% of daylight hours. July is the cloudiest.

When is the first frost in Saltillo?

The first fall freeze in Saltillo typically comes around December 1. The last spring freeze is around February 16.

What is the best time to visit Saltillo?

The most comfortable time to visit is typically January to March and October to December, when daytime highs sit near 23°C.

Source: NOAA GHCN-Daily station SALTILLO (8 km away).

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Normals from NOAA GHCN-Daily station SALTILLO.