Culiacán, Sinaloa Weather by Month and Climate Averages

Culiacán, Sinaloa gets 294 mm of precipitation a year over about 20 rainy days. July is the warmest month (average high 37°C) and January the coldest (average low 11°C).

Culiacán climate at a glance

Desert climate

Culiacán, Sinaloa has hot summers and hot winters. Daytime highs range from about 29°C in January to 37°C in July. August is usually the wettest month.

How much rain does Culiacán get?

Culiacán gets 294 mm of precipitation in an average year, spread over about 20 days with measurable rain. That is fewer rainy days than 91% of Mexico.

August is the wettest month, with 105 mm. May is the driest, with 1 mm. August has the most rainy days, about 6.

The longest dry spell in the last five years lasted 123 days, to April 4, 2025.

Culiacán weather by month

Culiacán weather in January

In January, Culiacán averages a high of 29°C and a low of 11°C. It gets 10 mm of precipitation over about 1 rainy days. The sun is out about 61% of daylight hours. The January record high is 36°C (2018) and the record low is 1°C (1989).

Culiacán weather in February

In February, Culiacán averages a high of 30°C and a low of 11°C. It gets 11 mm of precipitation over about 1 rainy days. The sun is out about 58% of daylight hours. The February record high is 37°C (2022) and the record low is 5°C (1983).

Culiacán weather in March

In March, Culiacán averages a high of 32°C and a low of 12°C. It gets 8 mm of precipitation over about 0 rainy days. The sun is out about 59% of daylight hours. The March record high is 38°C (2002) and the record low is 6°C (2008).

Culiacán weather in April

In April, Culiacán averages a high of 33°C and a low of 14°C. It gets 2 mm of precipitation over about 0 rainy days. The sun is out about 60% of daylight hours. The April record high is 41°C (2024) and the record low is 7°C (1983).

Culiacán weather in May

In May, Culiacán averages a high of 36°C and a low of 17°C. It gets 1 mm of precipitation over about 0 rainy days. The sun is out about 71% of daylight hours. The May record high is 41°C (2025) and the record low is 11°C (2006).

Culiacán weather in June

In June, Culiacán averages a high of 36°C and a low of 22°C. It gets 4 mm of precipitation over about 1 rainy days. The sun is out about 64% of daylight hours. The June record high is 42°C (2007) and the record low is 14°C (1991).

Culiacán weather in July

In July, Culiacán averages a high of 37°C and a low of 24°C. It gets 52 mm of precipitation over about 4 rainy days. The sun is out about 39% of daylight hours. The July record high is 43°C (1989) and the record low is 18°C (1973).

Culiacán weather in August

In August, Culiacán averages a high of 37°C and a low of 24°C. It gets 105 mm of precipitation over about 6 rainy days. The sun is out about 32% of daylight hours. The August record high is 42°C (2020) and the record low is 19°C (2000).

Culiacán weather in September

In September, Culiacán averages a high of 36°C and a low of 23°C. It gets 59 mm of precipitation over about 4 rainy days. The sun is out about 47% of daylight hours. The September record high is 42°C (2024) and the record low is 18°C (1991).

Culiacán weather in October

In October, Culiacán averages a high of 36°C and a low of 21°C. It gets 24 mm of precipitation over about 1 rainy days. The sun is out about 72% of daylight hours. The October record high is 44°C (2024) and the record low is 12°C (2010).

Culiacán weather in November

In November, Culiacán averages a high of 34°C and a low of 16°C. It gets 13 mm of precipitation over about 1 rainy days. The sun is out about 72% of daylight hours. The November record high is 42°C (2005) and the record low is 6°C (1982).

Culiacán weather in December

In December, Culiacán averages a high of 31°C and a low of 12°C. It gets 5 mm of precipitation over about 1 rainy days. The sun is out about 68% of daylight hours. The December record high is 38°C (2021) and the record low is 4°C (2003).

Sunshine, humidity and wind in Culiacán

October is the sunniest month in Culiacán, with sunshine about 72% of daylight hours. August is the cloudiest, at 32%. Over the year the sun shines about 59% of daylight hours. Culiacán is sunnier than 76% of Mexico.

Humidity peaks in September at 82% and is lowest in March at 60%.

Culiacán has about 87 days a year above 32°C. Culiacán is cooler than 54% of Mexico.

Culiacán weather records

The hottest temperature on record at the Culiacán station is 44°C, on October 22, 2024. The coldest is 1°C, on January 9, 1989.

The wettest day on record brought 228 mm of rain, on January 18, 1997.

26 all-time records have been set at the station since 1973.

The best time to visit Culiacán

Winter (December–February) is hot, with average highs around 30°C and lows near 11°C.

Spring (March–May) is hot, with average highs around 34°C and lows near 14°C.

Summer (June–August) is hot, with average highs around 37°C and lows near 23°C. It can feel humid.

Autumn (September–November) is hot, with average highs around 35°C and lows near 20°C.

Monthly climate

MonthPrecipRain daysHumiditySunshineSea tempRecord highRecord low
January10 mm166%61%-6°36°
February11 mm166%58%-7°37°
March8.1 mm060%59%-7°38°
April2.0 mm060%60%-6°41°
May0.8 mm061%71%-3°41°11°
June3.8 mm168%64%-2°42°14°
July52 mm473%39%-1°43°18°
August105 mm679%32%-1°42°19°
September59 mm482%47%-1°42°18°
October24 mm174%72%-1°44°12°
November13 mm163%72%-4°42°
December4.8 mm161%68%-6°38°

From ERA5 reanalysis. Sunshine is estimated from cloud cover.

Culiacán climate questions

How much rain does Culiacán get?

Culiacán gets 294 mm of precipitation in an average year, over about 20 rainy days.

What is the wettest month in Culiacán?

August is the wettest month in Culiacán, with 105 mm. May is the driest, with 1 mm.

How many rainy days does Culiacán have a year?

Culiacán has about 20 days with measurable rain in an average year. August has the most, about 6.

What is the hottest month in Culiacán?

July is the warmest month in Culiacán, with an average high of 37°C.

What is the coldest month in Culiacán?

January is the coldest month in Culiacán, with an average low of 11°C.

What is the record high temperature in Culiacán?

The record high at the Culiacán station is 44°C, set on October 22, 2024. The record low is 1°C, on January 9, 1989.

What is the sunniest month in Culiacán?

October is the sunniest month in Culiacán, with sunshine about 72% of daylight hours. August is the cloudiest.

Source: NOAA GHCN-Daily station CULIACAN INTL (9 km away).

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Normals from NOAA GHCN-Daily station CULIACAN INTL.