Isla Mujeres weather in January
In January, Isla Mujeres sees average daytime highs of 25°C and overnight lows near 24°C, with 65 mm of rain across 10.1 wet days and about 10.9 hours of daylight. It is the 12th-warmest and 8th-wettest month of the year here.
Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 49% of the time in January, and the air most often feels muggy.
Daylight stretches from about 10 h 42 min at the start of January to 11 hours by month's end. Set against the rest of the year, January is Isla Mujeres's 8th-clearest and 2nd-windiest month. For the whole year in context, see Isla Mujeres's year-round climate.
- Daytime high
- 25°
- 12th warmest
- Overnight low
- 24°
- 1st coldest
- Rainfall
- 65 mm
- 10.1 wet days
- Daylight
- 10 h 48 min
- 6:31 AM – 5:21 PM
- Cloud cover
- 48%
- 8th clearest
- Wind
- 24 km/h
- 2nd windiest
- Solar energy
- 3.81 kWh/m²
- Travel score
- 7.1
- out of 10
Isla Mujeres is municipal seat of Isla Mujeres, State of Quintana Roo, Mexico.
- Founded
- 1850
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in January
Day-to-day highs hold fairly steady near 25°C through the month.
A typical January day in Isla Mujeres reaches about 25°C in the afternoon and slips back to 24°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 26°C. Set against its neighbours, January runs on par with December and on par with February.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 25 | 24 |
| 2 | 25 | 24 |
| 3 | 25 | 24 |
| 4 | 25 | 24 |
| 5 | 25 | 24 |
| 6 | 25 | 24 |
| 7 | 25 | 24 |
| 8 | 25 | 24 |
| 9 | 25 | 24 |
| 10 | 25 | 23 |
| 11 | 25 | 23 |
| 12 | 25 | 23 |
| 13 | 25 | 23 |
| 14 | 25 | 23 |
| 15 | 25 | 23 |
| 16 | 25 | 23 |
| 17 | 25 | 23 |
| 18 | 25 | 23 |
| 19 | 25 | 23 |
| 20 | 25 | 23 |
| 21 | 25 | 23 |
| 22 | 25 | 23 |
| 23 | 25 | 23 |
| 24 | 25 | 23 |
| 25 | 25 | 23 |
| 26 | 25 | 23 |
| 27 | 25 | 24 |
| 28 | 25 | 24 |
| 29 | 25 | 24 |
| 30 | 25 | 24 |
| 31 | 25 | 24 |
How January really feels in Isla Mujeres
Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Isla Mujeres weather by month
How January compares with the rest of the year at a glance. January is the 12th-warmest and 8th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 25° / 24° | 65 | 10.1 | 10.9 | 7.1 |
| Feb | 25° / 24° | 35 | 6.9 | 11.3 | 7.6 |
| Mar | 26° / 24° | 24 | 4.9 | 11.8 | 8.0 |
| Apr | 26° / 25° | 25 | 4.7 | 12.5 | 7.9 |
| May | 27° / 26° | 66 | 9.1 | 13 | 6.9 |
| Jun | 28° / 27° | 131 | 15.6 | 13.3 | 5.5 |
| Jul | 28° / 27° | 66 | 11.2 | 13.2 | 5.8 |
| Aug | 29° / 27° | 91 | 14.6 | 12.7 | 5.3 |
| Sep | 28° / 27° | 164 | 20 | 12.1 | 4.5 |
| Oct | 28° / 26° | 190 | 19 | 11.5 | 5.1 |
| Nov | 27° / 25° | 90 | 11.6 | 11 | 6.5 |
| Dec | 26° / 24° | 62 | 11.8 | 10.7 | 6.7 |
Cloud cover in January
The sky is clear or mostly clear about 49% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 18% of January, with mostly cloudy or overcast conditions the remaining 33%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 69 | 69 | 69 | 69 | 69 | 69 | 67 | 67 | 67 | 67 | 66 | 66 | 66 | 66 | 66 | 66 | 66 | 65 | 65 | 65 | 65 | 65 | 66 | 66 | 66 | 67 | 68 | 68 | 70 | 70 | 70 |
| Cloudier (%) | 31 | 31 | 31 | 31 | 31 | 31 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 34 | 34 | 34 | 33 | 32 | 32 | 30 | 30 | 30 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 69 | 31 |
| 2 | 69 | 31 |
| 3 | 69 | 31 |
| 4 | 69 | 31 |
| 5 | 69 | 31 |
| 6 | 69 | 31 |
| 7 | 67 | 33 |
| 8 | 67 | 33 |
| 9 | 67 | 33 |
| 10 | 67 | 33 |
| 11 | 66 | 34 |
| 12 | 66 | 34 |
| 13 | 66 | 34 |
| 14 | 66 | 34 |
| 15 | 66 | 34 |
| 16 | 66 | 34 |
| 17 | 66 | 34 |
| 18 | 65 | 35 |
| 19 | 65 | 35 |
| 20 | 65 | 35 |
| 21 | 65 | 35 |
| 22 | 65 | 35 |
| 23 | 66 | 34 |
| 24 | 66 | 34 |
| 25 | 66 | 34 |
| 26 | 67 | 33 |
| 27 | 68 | 32 |
| 28 | 68 | 32 |
| 29 | 70 | 30 |
| 30 | 70 | 30 |
| 31 | 70 | 30 |
Chance of precipitation in January
Isla Mujeres gets around 65 mm of rain over 10.1 wet days in January. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 33% and peaks near 36% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 34 | 34 | 34 | 34 | 35 | 35 | 35 | 36 | 36 | 36 | 36 | 35 | 35 | 35 | 34 | 34 | 33 | 33 | 32 | 31 | 31 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Rain chance (%) | |
|---|---|
| 1 | 34 |
| 2 | 34 |
| 3 | 34 |
| 4 | 34 |
| 5 | 35 |
| 6 | 35 |
| 7 | 35 |
| 8 | 36 |
| 9 | 36 |
| 10 | 36 |
| 11 | 36 |
| 12 | 35 |
| 13 | 35 |
| 14 | 35 |
| 15 | 34 |
| 16 | 34 |
| 17 | 33 |
| 18 | 33 |
| 19 | 32 |
| 20 | 31 |
| 21 | 31 |
| 22 | 30 |
| 23 | 30 |
| 24 | 29 |
| 25 | 29 |
| 26 | 29 |
| 27 | 29 |
| 28 | 29 |
| 29 | 29 |
| 30 | 29 |
| 31 | 29 |
Humidity in January
Most of January feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the muggy band about 33% of days. Sticky, muggy-or-worse air turns up on roughly 64% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 2 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Comfortable (%) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 12 |
| Humid (%) | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 18 | 18 | 19 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 19 | 19 | 18 | 18 | 18 |
| Muggy (%) | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 33 |
| Oppressive (%) | 36 | 36 | 36 | 36 | 35 | 35 | 34 | 33 | 32 | 31 | 31 | 30 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 30 | 30 | 31 | 32 | 33 | 34 | 35 |
| Miserable (%) | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 2 | 12 | 16 | 33 | 36 | 1 |
| 2 | 3 | 12 | 16 | 33 | 36 | 1 |
| 3 | 3 | 12 | 16 | 33 | 36 | 0 |
| 4 | 3 | 12 | 16 | 33 | 36 | 0 |
| 5 | 3 | 12 | 16 | 33 | 35 | 0 |
| 6 | 4 | 12 | 16 | 33 | 35 | 0 |
| 7 | 4 | 12 | 17 | 33 | 34 | 0 |
| 8 | 4 | 13 | 17 | 33 | 33 | 0 |
| 9 | 4 | 13 | 18 | 33 | 32 | 0 |
| 10 | 4 | 13 | 18 | 33 | 31 | 0 |
| 11 | 4 | 13 | 19 | 33 | 31 | 0 |
| 12 | 4 | 14 | 20 | 33 | 30 | 0 |
| 13 | 3 | 14 | 20 | 33 | 29 | 0 |
| 14 | 3 | 14 | 21 | 33 | 29 | 0 |
| 15 | 3 | 15 | 21 | 33 | 29 | 0 |
| 16 | 3 | 15 | 21 | 33 | 28 | 0 |
| 17 | 3 | 15 | 21 | 33 | 28 | 0 |
| 18 | 2 | 16 | 21 | 33 | 28 | 0 |
| 19 | 2 | 16 | 21 | 33 | 28 | 0 |
| 20 | 2 | 16 | 22 | 33 | 28 | 0 |
| 21 | 2 | 16 | 22 | 33 | 28 | 0 |
| 22 | 2 | 16 | 21 | 33 | 28 | 0 |
| 23 | 2 | 16 | 21 | 33 | 28 | 0 |
| 24 | 2 | 16 | 21 | 33 | 29 | 0 |
| 25 | 2 | 15 | 20 | 33 | 30 | 0 |
| 26 | 2 | 15 | 20 | 33 | 30 | 0 |
| 27 | 2 | 14 | 19 | 33 | 31 | 0 |
| 28 | 2 | 14 | 19 | 34 | 32 | 0 |
| 29 | 2 | 13 | 18 | 34 | 33 | 0 |
| 30 | 2 | 13 | 18 | 34 | 34 | 0 |
| 31 | 2 | 12 | 18 | 33 | 35 | 0 |
Wind in January
Winds average 24 km/h in January.
Across January, daily wind ranges from about 23 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 23 | breezy |
| 2 | 23 | breezy |
| 3 | 23 | breezy |
| 4 | 24 | breezy |
| 5 | 24 | breezy |
| 6 | 24 | breezy |
| 7 | 24 | breezy |
| 8 | 24 | breezy |
| 9 | 24 | breezy |
| 10 | 24 | breezy |
| 11 | 24 | breezy |
| 12 | 24 | breezy |
| 13 | 24 | breezy |
| 14 | 24 | breezy |
| 15 | 24 | breezy |
| 16 | 24 | breezy |
| 17 | 24 | breezy |
| 18 | 24 | breezy |
| 19 | 24 | breezy |
| 20 | 24 | breezy |
| 21 | 24 | breezy |
| 22 | 24 | breezy |
| 23 | 24 | breezy |
| 24 | 24 | breezy |
| 25 | 23 | breezy |
| 26 | 23 | breezy |
| 27 | 23 | breezy |
| 28 | 23 | breezy |
| 29 | 23 | breezy |
| 30 | 23 | breezy |
| 31 | 23 | breezy |
Sunrise & sunset in January
Daylight runs from about 10 h 42 min at the start of January to 11 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 18 minutes over January. Sunrise moves from 6:28 AM to 6:29 AM, and sunset from 5:12 PM to 5:31 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunrise (AM) | 6:28 | 6:29 | 6:29 | 6:29 | 6:29 | 6:30 | 6:30 | 6:30 | 6:30 | 6:30 | 6:31 | 6:31 | 6:31 | 6:31 | 6:31 | 6:31 | 6:31 | 6:31 | 6:31 | 6:31 | 6:31 | 6:31 | 6:31 | 6:31 | 6:31 | 6:30 | 6:30 | 6:30 | 6:30 | 6:30 | 6:29 |
| Sunset (PM) | 5:12 | 5:13 | 5:13 | 5:14 | 5:14 | 5:15 | 5:16 | 5:16 | 5:17 | 5:17 | 5:18 | 5:19 | 5:19 | 5:20 | 5:21 | 5:21 | 5:22 | 5:23 | 5:23 | 5:24 | 5:25 | 5:25 | 5:26 | 5:27 | 5:27 | 5:28 | 5:29 | 5:29 | 5:30 | 5:30 | 5:31 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.7 | 6:28 | 5:12 |
| 2 | 10.7 | 6:29 | 5:13 |
| 3 | 10.7 | 6:29 | 5:13 |
| 4 | 10.7 | 6:29 | 5:14 |
| 5 | 10.7 | 6:29 | 5:14 |
| 6 | 10.8 | 6:30 | 5:15 |
| 7 | 10.8 | 6:30 | 5:16 |
| 8 | 10.8 | 6:30 | 5:16 |
| 9 | 10.8 | 6:30 | 5:17 |
| 10 | 10.8 | 6:30 | 5:17 |
| 11 | 10.8 | 6:31 | 5:18 |
| 12 | 10.8 | 6:31 | 5:19 |
| 13 | 10.8 | 6:31 | 5:19 |
| 14 | 10.8 | 6:31 | 5:20 |
| 15 | 10.8 | 6:31 | 5:21 |
| 16 | 10.8 | 6:31 | 5:21 |
| 17 | 10.8 | 6:31 | 5:22 |
| 18 | 10.9 | 6:31 | 5:23 |
| 19 | 10.9 | 6:31 | 5:23 |
| 20 | 10.9 | 6:31 | 5:24 |
| 21 | 10.9 | 6:31 | 5:25 |
| 22 | 10.9 | 6:31 | 5:25 |
| 23 | 10.9 | 6:31 | 5:26 |
| 24 | 10.9 | 6:31 | 5:27 |
| 25 | 10.9 | 6:31 | 5:27 |
| 26 | 11.0 | 6:30 | 5:28 |
| 27 | 11.0 | 6:30 | 5:29 |
| 28 | 11.0 | 6:30 | 5:29 |
| 29 | 11.0 | 6:30 | 5:30 |
| 30 | 11.0 | 6:30 | 5:30 |
| 31 | 11.0 | 6:29 | 5:31 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 3.81 kWh/m².
For context, solar energy here swings from a low near 3.7 kWh/m² to a high of 6.59 kWh/m² in July across the year — January's 3.81 kWh/m² sits near the bottom.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 4.0 | 4.0 | 4.0 | 4.1 | 4.1 | 4.1 | 4.2 | 4.2 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.7 | Moderate |
| 2 | 3.7 | Moderate |
| 3 | 3.7 | Moderate |
| 4 | 3.7 | Moderate |
| 5 | 3.7 | Moderate |
| 6 | 3.7 | Moderate |
| 7 | 3.7 | Moderate |
| 8 | 3.7 | Moderate |
| 9 | 3.7 | Moderate |
| 10 | 3.7 | Moderate |
| 11 | 3.7 | Moderate |
| 12 | 3.7 | Moderate |
| 13 | 3.7 | Moderate |
| 14 | 3.8 | Moderate |
| 15 | 3.8 | Moderate |
| 16 | 3.8 | Moderate |
| 17 | 3.8 | Moderate |
| 18 | 3.8 | Moderate |
| 19 | 3.9 | Moderate |
| 20 | 3.9 | Moderate |
| 21 | 3.9 | Moderate |
| 22 | 3.9 | Moderate |
| 23 | 3.9 | Moderate |
| 24 | 4.0 | Moderate |
| 25 | 4.0 | Bright |
| 26 | 4.0 | Bright |
| 27 | 4.1 | Bright |
| 28 | 4.1 | Bright |
| 29 | 4.1 | Bright |
| 30 | 4.2 | Bright |
| 31 | 4.2 | Bright |
Hazard calendar for Isla Mujeres
None of Isla Mujeres's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Isla Mujeres sits in the Atlantic hurricane belt; the season peaks August–October.
Isla Mujeres's rainy season runs August–November, when most of the year's rain falls.
Is January a good time to visit Isla Mujeres?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is one of the better times to visit Isla Mujeres for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Isla Mujeres in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Isla Mujeres sees daytime highs around 25°C and nights near 24°C. Worth packing: light clothes, rain gear and a windbreaker. About 10 days see rain.
Sea temperature near Isla Mujeres in January
The nearest coast averages about 27°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 16 km away) is warmest in September at about 29°C and coldest in February near 26°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 26 | 26 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 27 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 26 | Warm |
| Mar | 26 | Warm |
| Apr | 27 | Warm |
| May | 28 | Warm |
| Jun | 28 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 27 | Warm |
UV index in Isla Mujeres in January
Clear-sky midday UV in January peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Isla Mujeres peaks around July 19 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 6 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 7 | 9 | 11 | 12 | 11 | 12 | 12 | 12 | 11 | 10 | 7 | 6 |
| Level | High | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 7 | High |
| Feb | 9 | Very high |
| Mar | 11 | Extreme |
| Apr | 12 | Extreme |
| May | 11 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 12 | Extreme |
| Sep | 11 | Extreme |
| Oct | 10 | Very high |
| Nov | 7 | High |
| Dec | 6 | High |
Air quality in Isla Mujeres in January
Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.
Air quality in Isla Mujeres is worst in June — around 25 µg/m³ PM2.5 (moderate), about 4.1× the cleanest month (November, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 7 | 7 | 8 | 12 | 15 | 25 | 22 | 18 | 12 | 9 | 6 | 6 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 7 | Good |
| Mar | 8 | Good |
| Apr | 12 | Good |
| May | 15 | Moderate |
| Jun | 25 | Moderate |
| Jul | 22 | Moderate |
| Aug | 18 | Moderate |
| Sep | 12 | Moderate |
| Oct | 9 | Good |
| Nov | 6 | Good |
| Dec | 6 | Good |
Where is Isla Mujeres?
Isla Mujeres sits at 21.2°N, 86.7°W, 0 m above sea level, in Mexico. The nearest listed city is Cancun, 14 km away.
Topography around Isla Mujeres
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Isla Mujeres.
Within 3 km, the terrain around Isla Mujeres has only modest variations in elevation — a maximum elevation change of 23 m around an average of 1 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 30 m; within 80 km, only modest variations in elevation — a maximum elevation change of 30 m.
The land around Isla Mujeres is covered by water (90%) within 3 km, water (84%) within 16 km, and water (58%) and trees (35%) within 80 km.
Mexico travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B
- 120 / 127 V · 60 Hz
- Prices
- ≈ 54% of US
- price level, 2025
- GDP per capita
- $13,889
- 2025
- Happiness
- 7.0 / 10
- World Happiness, 2025
- Safe drinking water
- 43%
- of population, 2024
- Homicide rate
- 24.9
- per 100k, 2023
- Road deaths
- 12.8
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very low
- EF EPI 440
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Isla Mujeres (21.2311°, -86.731°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).