Mexico
Tulum in September: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Tulum in September is climatically mixed. The average daily high is around 30 °C, and the sea is about 29 °C. With about 24 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
52/100 · #12
Warmth
#6
Dryness
#12
Sun
#7
Sea warmth
#1
Published best categories: none
Tulum · SeptemberPhoto: ironypoisoning · CC BY-SA 2.0Climate facts
- Average high
- 30 °C
- Average low
- 26 °C
- Sea
- 29 °C
- Rainy days (est.)
- 24 rainy days (est.)
- Sun (est.)
- 7 h/day
- Humidity
- 85 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| August | 30 | 26 | 22 | 153 | 7.4 | 83 | 1.4 | 29 | 53 |
| September (selected) | 30 | 26 | 24 | 182 | 6.6 | 85 | 1.4 | 29 | 52 |
| October | 29 | 25 | 21 | 187 | 6.0 | 86 | 1.5 | 29 | 57 |
How do the previous and next months compare?
Baseline: September (52/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| August | +1 | +0.5 °C | +0.1 °C | -2 | -29 mm | +0.8 h | -2.3 % | ±0 m/s | -0.1 °C |
| October | +5 | -0.9 °C | -1.2 °C | -2.9 | +4.8 mm | -0.6 h | +0.6 % | +0.1 m/s | -0.4 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Tulum in September?
The average daily high is around 30 °C, with an average daily low of about 26 °C.
Can you swim in Tulum in September?
The sea is about 29 °C (very warm).
Does it rain a lot in Tulum in September?
The curated estimate is about 24 rainy days per month, not a directly measured long-term average. Total precipitation averages around 182 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Tulum?
By the climate score, January, February, March and April are the strongest months for Tulum. For a beach trip: January, February, March and April. September is not among them.