January weather forecastMazatlán, Mexico

January
Weather in January
The year kicks off reasonably warm with an average high temperature of 25.3°C (77.5°F) and relatively nominal relative humidity at 60% in Mazatlán. Compared to the latter months, rainfall remains considerably low with 8mm (0.31") and 2.8 days of rainfall recorded. January marks the start of the new year with warm days that are best spent outdoors. The sea can be inviting too, with waters holding their warmth from the preceding months. Keep the rain gear handy though, despite the low average, quick showers can catch residents and visitors off guard.Temperature
January brings an average high-temperature of a still moderately hot 25.3°C (77.5°F), showing a slight difference from December's 25.5°C (77.9°F). Mazatlán experiences a mean low-temperature of 19.4°C (66.9°F) during January.Humidity
The months with the lowest humidity in Mazatlán are January and March, with an average relative humidity of 60%.Rainfall
In January, the rain falls for 2.8 days. Throughout January, 8mm (0.31") of precipitation is accumulated. Throughout the year, there are 113.9 rainfall days, and 454mm (17.87") of precipitation is accumulated.Sea temperature
In January, the average sea temperature is 22.5°C (72.5°F).Note: Consideration of an individual's cold resistance, combined with conditions like sunshine, wind, and temperature, suggests that swimming in 22.5°C (72.5°F) water can be delightful. (Olympic swimming is usually in 25°C (77°F) to 28°C (82.4°F) water.)
Daylight
In Mazatlán, the average length of the day in January is 10h and 54min.On the first day of the month, sunrise is at 6:47 am and sunset at 5:31 pm. On the last day of January, in Mazatlán, Mexico, sunrise is at 6:45 am and sunset at 5:52 pm MST.
Sunshine
The month with the least sunshine is January, with an average of 7.3h of sunshine.UV index
January through April, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Mazatlán. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 6 in January leads to these recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Alert! Sand and water increase UV exposure due to their reflective properties.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Mazatlán, Mexico
- Average high temperature in January: 25.3°C
The warmest month (with the highest average high temperature) is August (30.9°C).
The month with the lowest average high temperature is February (25.1°C).
- Average low temperature in January: 19.4°C
The months with the highest average low temperature are July and August (26.9°C).
The coldest months (with the lowest average low temperature) are January and February (19.4°C).
Average pressure in January
Mazatlán, Mexico
- Average pressure in January: 1015.4mbar
The month with the highest atmospheric pressure is January (1015.4mbar).
The month with the lowest atmospheric pressure is September (1011.2mbar).
Average wind speed in January
Mazatlán, Mexico
- Average wind speed in January: 11.2km/h
The windiest month (with the highest average wind speed) is February (11.7km/h).
The calmest month (with the lowest average wind speed) is July (10.5km/h).
Average humidity in January
Mazatlán, Mexico
- Average humidity in January: 60%
The month with the highest relative humidity is September (77%).
The months with the lowest relative humidity are January and March (60%).
Average rainfall in January
Mazatlán, Mexico
- Average rainfall in January: 8mm
The wettest month (with the highest rainfall) is September (121mm).
The driest month (with the least rainfall) is April (0mm).
Average rainfall days in January
Mazatlán, Mexico
- Average rainfall days in January: 2.8 days
The month with the highest number of rainy days is August (25.3 days).
The month with the least rainy days is April (0.6 days).
Average sea temperature in January
Mazatlán, Mexico
- Average sea temperature in January: 22.5°C
The best month for swimming (with the highest average sea temperature) is August (30.6°C).
The coldest month (with the lowest average sea temperature) is February (21.6°C).
Average daylight in January /
Average sunshine in January
Mazatlán, Mexico
- Average daylight in January: 10h and 54min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 42min).
- Average sunshine in January: 7h and 18min
The month with the most sunshine is May (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 7h and 18min).
Average sunshine days in January
Mazatlán, Mexico
- Average sunshine days in January: 26.5 days
The month with the most sunshine days is April (29.3 days).
The month with the least sunshine days is August (1.9 days).
Average UV index in January
Mazatlán, Mexico
- Average UV index in January: 6
The months with the highest UV index are May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, November and December (UV index 6).
Average cloud cover in January
Mazatlán, Mexico
- Average cloud cover in January: 15
The month with the most cloud cover is August (Cloud cover 33).
The month with the least cloud cover is May (Cloud cover 10).
Average visibility in January
Mazatlán, Mexico
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





