Tulum climate by month
What the weather is like
Tulum has a tropical monsoon climate (Köppen Am): .
The warmest month is September, when afternoons average 31° and nights 25°. March is the coolest month, with highs of 28° and lows of 21°. The difference between the warmest and the coolest month is about 4°, a small seasonal swing typical of places tempered by the sea.
About 1,332 mm of precipitation falls in an average year. October is the wettest month (196 mm, 24 wet days) and April the driest (51 mm, 6 wet days). Cloud cover ranges from 19% in February to 42% in June.
The sea reaches about 29° in September. Sea temperatures lag the air by a month or two, so late summer is usually warmer for swimming than early summer.
Compared with Mexico City, the capital, Tulum is 7.6° warmer on a September afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 31° · September
- Coldest nights
- 21° · January
- Wettest month
- October
- Driest month
- April
- Clearest skies
- February · 19% cloud
- Warmest sea
- 29° · September
- Longest day
- 13 h 21 min
- Shortest day
- 10 h 55 min
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columns, sea temperature lineTemperature curve
Average high, low and seaDaylight
Hours between sunrise and sunset on the 15th of each monthClimate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 28° | 28° | 28° | 28° | 29° | 30° | 31° | 31° | 31° | 31° | 30° | 29° |
| Average low | 21° | 21° | 21° | 23° | 24° | 25° | 25° | 25° | 25° | 23° | 22° | 21° |
| Precipitation | 63 mm | 48 mm | 47 mm | 51 mm | 120 mm | 176 mm | 127 mm | 142 mm | 194 mm | 196 mm | 97 mm | 71 mm |
| Wet days (≥1 mm) | 13.3 | 9.2 | 7.5 | 6.2 | 10 | 19.2 | 18.8 | 23.2 | 23 | 23.7 | 18.3 | 16.5 |
| Cloud cover | 22% | 19% | 19% | 19% | 27% | 42% | 34% | 34% | 41% | 34% | 26% | 24% |
| Sea temperature | 27° | 27° | 27° | 27° | 28° | 29° | 29° | 29° | 29° | 29° | 28° | 27° |
| Daylight | 11h 02 | 11h 29 | 12h 01 | 12h 36 | 13h 05 | 13h 21 | 13h 14 | 12h 50 | 12h 16 | 11h 42 | 11h 11 | 10h 55 |
| Month score | 55 | 66 | 71 | 72 | 59 | 40 | 41 | 40 | 36 | 41 | 48 | 52 |