San Luis Río Colorado, Sonora Weather by Month and Climate Averages

How much rain does San Luis Río Colorado get?

San Luis Río Colorado gets 83 mm of precipitation in an average year, spread over about 17 days with measurable rain. That is fewer rainy days than 96% of the US.

September is the wettest month, with 17 mm. June is the driest, with 0 mm. January has the most rainy days, about 3.

The longest dry spell in the last five years lasted 163 days, to August 19, 2026.

San Luis Río Colorado weather by month

San Luis Río Colorado weather in January

In January, San Luis Río Colorado averages a high of 21°C and a low of 9°C. It gets 10 mm of precipitation over about 3 rainy days. The sun is out about 68% of daylight hours. The January record high is 31°C (2003) and the record low is -4°C (2007). January is one of the most comfortable months to visit.

San Luis Río Colorado weather in February

In February, San Luis Río Colorado averages a high of 23°C and a low of 11°C. It gets 10 mm of precipitation over about 2 rainy days. The sun is out about 74% of daylight hours. The February record high is 36°C (2026) and the record low is -1°C (2011). February is one of the most comfortable months to visit.

San Luis Río Colorado weather in March

In March, San Luis Río Colorado averages a high of 27°C and a low of 13°C. It gets 10 mm of precipitation over about 2 rainy days. The sun is out about 72% of daylight hours. The March record high is 43°C (2026) and the record low is 4°C (2023).

San Luis Río Colorado weather in April

In April, San Luis Río Colorado averages a high of 31°C and a low of 16°C. It gets 4 mm of precipitation over about 1 rainy days. The sun is out about 87% of daylight hours. The April record high is 43°C (1989) and the record low is 4°C (1984).

San Luis Río Colorado weather in May

In May, San Luis Río Colorado averages a high of 35°C and a low of 19°C. It gets 2 mm of precipitation over about 1 rainy days. The sun is out about 91% of daylight hours. The May record high is 49°C (1983) and the record low is 10°C (1995).

San Luis Río Colorado weather in June

In June, San Luis Río Colorado averages a high of 40°C and a low of 24°C. It gets 0 mm of precipitation over about 0 rainy days. The sun is out about 87% of daylight hours. The June record high is 51°C (1990) and the record low is 15°C (1993).

San Luis Río Colorado weather in July

In July, San Luis Río Colorado averages a high of 42°C and a low of 28°C. It gets 6 mm of precipitation over about 1 rainy days. The sun is out about 76% of daylight hours. The July record high is 51°C (1995) and the record low is 20°C (1982).

San Luis Río Colorado weather in August

In August, San Luis Río Colorado averages a high of 42°C and a low of 28°C. It gets 5 mm of precipitation over about 1 rainy days. The sun is out about 80% of daylight hours. The August record high is 48°C (1985) and the record low is 20°C (1992).

San Luis Río Colorado weather in September

In September, San Luis Río Colorado averages a high of 39°C and a low of 25°C. It gets 17 mm of precipitation over about 2 rainy days. The sun is out about 87% of daylight hours. The September record high is 49°C (2020) and the record low is 13°C (1986).

San Luis Río Colorado weather in October

In October, San Luis Río Colorado averages a high of 33°C and a low of 19°C. It gets 3 mm of precipitation over about 1 rainy days. The sun is out about 87% of daylight hours. The October record high is 45°C (2024) and the record low is 8°C (1996).

San Luis Río Colorado weather in November

In November, San Luis Río Colorado averages a high of 26°C and a low of 13°C. It gets 6 mm of precipitation over about 1 rainy days. The sun is out about 78% of daylight hours. The November record high is 36°C (2010) and the record low is 2°C (2010). November is one of the most comfortable months to visit.

San Luis Río Colorado weather in December

In December, San Luis Río Colorado averages a high of 20°C and a low of 8°C. It gets 11 mm of precipitation over about 2 rainy days. The sun is out about 69% of daylight hours. The December record high is 29°C (2021) and the record low is -1°C (1987). December is one of the most comfortable months to visit.

Sunshine, humidity and wind in San Luis Río Colorado

May is the sunniest month in San Luis Río Colorado, with sunshine about 91% of daylight hours. January is the cloudiest, at 68%. Over the year the sun shines about 80% of daylight hours. San Luis Río Colorado is sunnier than 99% of the US.

Humidity peaks in August at 34% and is lowest in April at 20%.

Wind averages 11 km/h over the year, and July is the windiest month at 14 km/h.

San Luis Río Colorado has about 174 days a year above 32°C. San Luis Río Colorado is hotter than 99% of the US.

Thunderstorms occur on about 10 days a year.

San Luis Río Colorado weather records

The hottest temperature on record at the San Luis Río Colorado station is 51°C, on July 28, 1995. The coldest is -4°C, on January 14, 2007.

The wettest day on record brought 101 mm of rain, on September 25, 1997.

40 all-time records have been set at the station since 1982.

The annual mean temperature has changed by +0.2°C per decade since 1982.

The best time to visit San Luis Río Colorado

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

Winter (December–February) is warm, with average highs around 22°C and lows near 9°C.

Spring (March–May) is hot, with average highs around 31°C and lows near 16°C.

Summer (June–August) is hot, with average highs around 41°C and lows near 27°C.

Autumn (September–November) is hot, with average highs around 32°C and lows near 19°C.

San Luis Río Colorado climate questions

How much rain does San Luis Río Colorado get?

San Luis Río Colorado gets 83 mm of precipitation in an average year, over about 17 rainy days.

What is the wettest month in San Luis Río Colorado?

September is the wettest month in San Luis Río Colorado, with 17 mm. June is the driest, with 0 mm.

How many rainy days does San Luis Río Colorado have a year?

San Luis Río Colorado has about 17 days with measurable rain in an average year. January has the most, about 3.

What is the hottest month in San Luis Río Colorado?

July is the warmest month in San Luis Río Colorado, with an average high of 42°C.

What is the coldest month in San Luis Río Colorado?

December is the coldest month in San Luis Río Colorado, with an average low of 8°C.

What is the record high temperature in San Luis Río Colorado?

The record high at the San Luis Río Colorado station is 51°C, set on July 28, 1995. The record low is -4°C, on January 14, 2007.

What is the sunniest month in San Luis Río Colorado?

May is the sunniest month in San Luis Río Colorado, with sunshine about 91% of daylight hours. January is the cloudiest.

What is the best time to visit San Luis Río Colorado?

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