Weather in Culiacán in December

Prime time. December is about as good as Culiacán gets. Highs average 29 °C, lows 16 °C, and rain falls on 2 days — nothing in the month is working against you.

December is the highest-scoring month of the twelve. The nearest rival is January, and the month at the other end of the year is July.

Rain falls on only 2 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 29 °C days and 16 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 12 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest December day reached 36.6 °C and the coldest night fell to 6.1 °C, and the wettest single day dropped 66 mm — roughly 413% of the month's rain in one day.

This is the volatile part. December rainfall has ranged from 0 mm to 70 mm across the twenty years measured — a 70 mm spread around an average of 16 mm. The average is real but almost no individual December looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 5.3 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 50%.

How December sits in the year

Temperatures hold steady either side: 32 °C in November, 29 here, 29.5 in January. Nothing about the timing within the month matters much.

Daylight in December

December sits at the dark end of Culiacán's year — 10.6 hours of daylight against 13.7 at midsummer, holding steady all month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.

Sea temperature

The sea sits at about 23.9 °C in December — comfortable for a proper swim. The sea peaks at 30.4 °C in August and bottoms out at 21.4 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

December in Culiacán versus nearby

If Culiacán is one option among several, the nearby comparison is worth making. Torreón is a better bet in December — 6.2 °C cooler, 1 day less rain. Chihuahua is a better bet in December — 9.3 °C cooler, 1 day less rain.

So: December is the answer for Culiacán. If it is booked out or priced out, January is the next best thing at 1 points behind, and July is the month to keep off the shortlist.

Every month in Culiacán

See all twelve months in Culiacán, or where else to go in December.