Isla Mujeres in Winter
In winter (December, January and February), Isla Mujeres sees average daytime highs around 25°C and overnight lows near 24°C, with 162 mm of rain over about 29 wet days across the season. It is the coldest season of the year and the 3rd-wettest season.
Across winter, daytime highs hold fairly steady around 25°C. The sky is clear or mostly clear about 54% of the time across winter, and the air most often feels oppressive.
Winter is Isla Mujeres's 2nd-best season to visit on our travel score. Isla Mujeres has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Isla Mujeres's year-round climate.
- Avg daytime high
- 25°C
- coldest season of the year
- Avg overnight low
- 24°C
- Rainfall
- 162 mm
- 29 wet days
- Avg wind
- 23 km/h
- Travel score
- 7.1
- 2nd-best season
- Months
- Dec · Jan · Feb
Temperature in Isla Mujeres in Winter
Across winter, daytime highs hold fairly steady around 25°C.
A typical winter day in Isla Mujeres reaches about 25°C and drops to 24°C overnight. The warmest of the three months is December, the coolest January.
How winter really feels in Isla Mujeres
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
winter 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 the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| 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 Winter
The sky is clear or mostly clear about 54% of the time across winter.
Chance of precipitation in Winter
Isla Mujeres gets around 162 mm of rain over 29 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 23 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 10 h 48 min in early December to 11 h 30 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 4.1 kWh/m².
Hazard calendar for Isla Mujeres
None of Isla Mujeres's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
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 winter a good time to visit Isla Mujeres?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter 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 Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Isla Mujeres sees daytime highs around 25°C and nights near 24°C. Worth packing: light clothes, rain gear, sun protection and a windbreaker. About 29 days see rain.
Sea temperature near Isla Mujeres in Winter
The nearest coast averages about 27°C across winter — 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 Winter
Clear-sky midday UV across winter averages 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 Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter 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.