14-day forecast — Cancún Updated every hour
Mon · Today · 14 Sep
Cloudy
30°
28°
0.1 mm
Tue · Tomorrow · 15 Sep
Showers
30°
27°
2.8 mm
Wednesday · 16 Sep
Sunny
30°
27°
3.3 mm
Thursday · 17 Sep
Showers
30°
27°
2.7 mm
Friday · 18 Sep
Showers
30°
27°
4.4 mm
Saturday · 19 Sep
Sunny
30°
27°
1.9 mm
Sunday · 20 Sep
Sunny
30°
28°
5%
Monday · 21 Sep
Sunny
30°
27°
17%
Tuesday · 22 Sep
Cloudy
30°
27°
17%
Wednesday · 23 Sep
Showers
30°
27°
3.5 mm
Thursday · 24 Sep
Showers
29°
27°
33.9 mm
Friday · 25 Sep
Showers
28°
25°
20.7 mm
Saturday · 26 Sep
Showers
28°
26°
6.2 mm
Sunday · 27 Sep
Showers
28°
26°
10.9 mm
About Cancún
Caribbean sand, Mayan ruins and cenotes — dry season December to April is prime time.
Country Mexico
Region Riviera Maya
Continent North America & Caribbean
Time zone America/Cancun (-05:00)
Latitude 21.1619°
Longitude -86.8515°
Air quality Fair (EAQI 38)
🗺️ Cancún and what is nearby
Where it is, and the forecast day by day
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Markers show the daytime high for the selected day. Tap a marker for Cancún detail; two fingers to move and zoom the map.
Climate in Cancún in August
Averages over 8 years · best time to visit
Best time to visit Cancún : January–December . With good weather, August is a recommended month to visit.
Photo: Wikimedia
July
August
September
Average temperature
→ 28°C
28°C
→ 28°C
Highest temperature
→ 31°C
31°C
→ 31°C
Lowest temperature
→ 26°C
26°C
▼ 25°C
Sea temperature
▲ 28,9°C
29,2°C
▲ 29,4°C
Rainfall
▲ 91 mm
118 mm
▲ 166 mm
Days with rain
▲ 16 d
20 d
▲ 22 d
Humidity
▼ 82%
81%
▲ 84%
Sunshine hours per day
▼ 11,7 h
11,4 h
▼ 10,6 h
Cloud cover
▼ 12%
11%
▲ 13%
UV index (midday)
→ 12
12
▼ 11
Day length
13:16
12:50
12:15
Our rating
Good
Good
Good
Temperature day by day in August mean + moving average
26° 27° 28° 29° 30° 1 6 11 16 21 26 31
Rainfall day by day in August mm
0 4.8 9.5 1 6 11 16 21 26 31
UV index day by day in August midday value, clear-sky
0 6 12 1 6 11 16 21 26 31
Climate averages calculated from the ERA5 archive (8 years; sea temperature from marine reanalysis). UV estimated from solar elevation.
Other destinations in North America & Caribbean
Data source
Global weather models — international forecasts
The weather for Cancún is based on global weather models (ECMWF, GFS) and national meteorological institutes around the world. Forecasts update every hour; current measurements every 15 minutes. For destinations with a larger time difference from the UK, local time is shown above.