Tulum, Mexico skyline

Tulum Weather in August

What August is usually like in Tulum, Mexico — from 2006–2025 averages.

Expect Tulum to reach about 30.7°C (87.3°F) by day and 26°C (78.8°F) at night in August, with 19 rainy days bringing 141 mm and around 11.2 hours of sunshine each day.

Avg high

30.7°C (87.3°F)

Avg low

26°C (78.8°F)

Rainfall

141 mm (5.6 in)

Rainy days

19 days

Sunshine

11.2 h / day

Humidity

81%

August vs the rest of the year

August is the warmest month in Tulum, and the 4th wettest for rain.

MonthAvg highvs AugustRainRainy days
January26.4°C (79.5°F)−4.3°C (−7.7°F)61 mm13
February27.1°C (80.8°F)−3.6°C (−6.5°F)37 mm10
March27.9°C (82.2°F)−2.8°C (−5°F)35 mm9
April29°C (84.2°F)−1.7°C (−3.1°F)40 mm8
May29.8°C (85.6°F)−0.9°C (−1.6°F)107 mm14
June29.7°C (85.5°F)−1°C (−1.8°F)210 mm21
July30.4°C (86.7°F)−0.3°C (−0.5°F)99 mm17
August30.7°C (87.3°F)—141 mm19
September30.2°C (86.4°F)−0.5°C (−0.9°F)182 mm22
October29.3°C (84.7°F)−1.4°C (−2.5°F)182 mm20
November27.8°C (82°F)−2.9°C (−5.2°F)97 mm13
December27°C (80.6°F)−3.7°C (−6.7°F)69 mm14

What August feels like in Tulum

August falls in Tulum's wet season — the rainfall numbers rise clearly above the dry months. The midday hours are hot; shade and water matter on long walks. Evenings ease the heat only slightly, and nights remain very warm. Thick, humid air means clothes cling and the heat feels stronger than the number.

Rain in Tulum in August

Dry days are the exception, with rain on most days. Wet days average about 7.4 mm (0.3 in), enough to soak you without an umbrella. Across the year Tulum averages about 7 mm per rainy day, so August is typical.

How August compares to the rest of the year

In Tulum's temperature order, August sits as the warmest month. Afternoons run 0.3°C (0.5°F) warmer than in July, with 42 mm more rain. Temperatures barely move from one month to the next here. September averages a high of 30.2°C (86.4°F).

Who August suits

  • Sightseeing: less ideal — rain falls on more than half the days.
  • Parks & outdoor: less ideal — afternoons are too warm to linger outside.
  • Museums & indoor: a good choice — with rain on most days, galleries and museums make easy plans.

Tips for visiting Tulum in August

Rain Protection

A compact umbrella and a light waterproof jacket.

Sun Protection

Loose, breathable clothing plus sunscreen and a wide-brimmed hat.

Quick questions

How warm is Tulum in August?

Expect around 30.7°C (87.3°F) in the afternoon and 26°C (78.8°F) at night, which most visitors would call hot.

Does it rain a lot in Tulum in August?

Quite a lot — 141 mm spread over about 19 days.

What should I wear in Tulum in August?

Based on the averages: rain protection and sun protection. Evenings feel similar to the day, so the same clothes work from morning to night.

Is August or September better for visiting Tulum?

August, narrowly: it ranks #9 of 12 among Tulum's months, against #11 for the other. September has more rainy days.

Is August a good time to visit Tulum?

Fair

Fair — warm to hot days, rain on most days (about 19), plenty of sunshine (11.2 h a day). Within Tulum's own year, August ranks #9 of 12.

August in other Mexico cities

Drier places in August

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Tulum weather by month.