World Resorts Mexico Isla Mujeres Weather

Isla Mujeres weather in December

Weather in Isla Mujeres: December

Average day temperature: 79.7°F
Average night temperature: 74.8°F
Sea water temperature: 81.6°F
Number of sunny days: 2 days
Day length: 10.8 - 10.9 hours
Number of rainy days: 1 day
Precipitation totals: 0.7 in.

Air temperature in December, °F

Show year:
2025
2024
2023

The highest day temperature during December of 2025 was 86°F. At the same time the lowest night temperature was 72°F. Daily and nightly averages during December were 81.6°F and 76.1°F.

Sea water temperature in Isla Mujeres in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 82.2°F. The highest and lowest sea temperatures during the month were 83.1°F and 81.3°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, in.

Precipitation total value in Isla Mujeres in December is 0.7 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 9.7 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 4.7.

Best time for vacation in Isla Mujeres

Sunniest months:
April 13 days
July 8 days
March 7 days
Warmest months:
July 87.6 °F
August 87.4 °F
September 86.7 °F
Warmest sea temp:
August 84.9 °F
September 84.8 °F
October 84.5 °F
Coldest months:
January 78.6 °F
December 79.7 °F
February 79.8 °F
Rainiest months:
June 5 days
August 4 days
September 3 days
Windiest months:
April 11.2 mph
March 11.0 mph
February 10.4 mph

Isla Mujeres on a weather map

Isla Mujeres
+75°F
SW 6 mph
Feels like: +79°F
Precip.: 0%
Places in Mexico:
Name
°F
+73°F
+73°F
+77°F
+68°F
+73°F
+73°F
+77°F
+72°F
+64°F
+73°F
24 Hours Forecast
Isla Mujeres
Local time: 00:37
December 30, tuesday
0300
73°F
SW
6 mph
0600
73°F
SW
6 mph
0900
73°F
S
5 mph
1200
77°F
S
9 mph
1500
79°F
S
13 mph
1800
75°F
S
14 mph
2100
73°F
S
14 mph
December 31, wednesday
0000
72°F
S
14 mph
Units of measurement: °C / °F