Cozumel Weather in January
Cozumel in January sees high daytime temperatures of 27°C (81°F) and nighttime lows of 24°C (75°F). Rainfall is fairly high this month at around 74 mm (2.9 in), so pack a rain jacket to stay dry.
Rainfall in Cozumel in January
Historically, the month has about 8 days of rain, averaging 74 mm (2.9 in) in total. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Cozumel in January
If you're visiting Cozumel in January, expect perfect temperatures with highs of 27°C (81°F) and overnight lows of 24°C (75°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights are warm at 24°C (75°F). It's worth making sure your accommodation has decent ventilation or air conditioning. Experience the cooler side of the year in this month, yet it remains pleasantly warm.
Sunshine in Cozumel in January
The month enjoys around 222 hours of sunshine, creating mostly sunny days with good weather conditions.
Average water temperature in January
With water at 26°C (79°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.If you're inclined towards comfortable temperatures and drier conditions, January is a good time to visit Cozumel.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Cozumel's climate page.
Cozumel Temperature in January
Min Temperature
24°C (75°F)
Max Temperature
27°C (81°F)
Water Temperature
26°C (79°F) *
Chance of Rain
25%
Precipitation
74 mm (2.9 in)
Rainy days
8 days
Sunshine
222 hours *
Percentage Sunshine
*
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Cozumel typically stay consistent throughout January, with daily highs averaging around 27°C (81°F). Nights are pleasant, with lows around 20°C (68°F).
Average temperatures in January
Historical weather for Cozumel in January
Browse day-by-day weather records for Cozumel spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cozumel historical weather extremes in January
Our historical data for Cozumel spans 1976 to 2025, revealing these weather extremes.
- The hottest January day on record in Cozumel reached 33°C (91°F) (January 21, 1980).
- Cozumel experienced its chilliest January day on January 27, 1986, reaching only 19°C (66°F).
- Nighttime temperatures dropped to 7°C (45°F) on January 9, 2002, marking the coldest January night on record.
Best Places in Mexico in January
Find out more about the weather in Mexico and which places have the best travel conditions in this month. See all of Mexico in January →
perfect weather
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What to Wear in Cozumel in January
Warm but pleasant conditions in Cozumel in January. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days. With water temperatures around 26°C (79°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Cozumel in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Cozumel's climate page.
Temperature Rainfall Sunshine Water Temp
See the full Cozumel climate overview or explore weather in Mexico.
