Mexico
Cancún in October: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Cancún in October is climatically well suited to beach holidays. The average daily high is around 29 °C, and the sea is about 29 °C. With about 21 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
57/100 · #9
Warmth
#7
Dryness
#10
Sun
#9
Sea warmth
#3
Published best categories: none
Cancún · OctoberPhoto: Luka Peternel · CC BY-SA 4.0Climate facts
- Average high
- 29 °C
- Average low
- 26 °C
- Sea
- 29 °C
- Rainy days (est.)
- 21 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 82 %
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 |
|---|---|---|---|---|---|---|---|---|---|
| September | 30 | 27 | 24 | 175 | 6.9 | 82 | 1.9 | 29 | 53 |
| October (selected) | 29 | 26 | 21 | 198 | 5.9 | 82 | 2.3 | 29 | 57 |
| November | 28 | 24 | 14 | 117 | 5.1 | 79 | 2.5 | 28 | 69 |
How do the previous and next months compare?
Baseline: October (57/100)
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 | |
|---|---|---|---|---|---|---|---|---|---|
| September | -4 | +1.1 °C | +0.9 °C | +2.7 | -23.4 mm | +1 h | ±0 % | -0.3 m/s | +0.3 °C |
| November | +12 | -1.2 °C | -1.6 °C | -6.9 | -80.8 mm | -0.8 h | -2.8 % | +0.2 m/s | -0.8 °C |
All twelve months in context

Find a place to stay
Where to stay in Cancún
Compare available stays, prices and cancellation terms for Cancún on Booking.com.
Booking.comFind places to stayAffiliate link: there is no extra cost to you.
Useful next decisions
Frequently asked questions
How warm is Cancún in October?
The average daily high is around 29 °C, with an average daily low of about 26 °C.
Can you swim in Cancún in October?
The sea is about 29 °C (very warm).
Does it rain a lot in Cancún in October?
The curated estimate is about 21 rainy days per month, not a directly measured long-term average. Total precipitation averages around 198 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Cancún?
By the climate score, January, February, March and April are the strongest months for Cancún. For a beach trip: January, February, March and April. October is not among them.