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Key West in October: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Key West in October is climatically well suited to beach holidays and family holidays. The average daily high is around 28 °C, and the sea is about 28 °C. With about 17 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
65/100 · #8
Warmth
#5
Dryness
#8
Sun
#9
Sea warmth
#5
Published best categories: none
Key West · OctoberPhoto: Ebyabe · CC BY-SA 3.0Climate facts
- Average high
- 28 °C
- Average low
- 27 °C
- Sea
- 28 °C
- Rainy days (est.)
- 17 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 77 %
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 | 29 | 29 | 24 | 198 | 6.7 | 77 | 4.0 | 30 | 54 |
| October (selected) | 28 | 27 | 17 | 130 | 5.9 | 77 | 5.1 | 28 | 65 |
| November | 26 | 24 | 9 | 55 | 5.1 | 77 | 5.5 | 26 | 85 |
How do the previous and next months compare?
Baseline: October (65/100)
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 | -11 | +1.4 °C | +1.5 °C | +7.2 | +68.1 mm | +0.8 h | -0.2 % | -1.1 m/s | +1.4 °C |
| November | +20 | -2.3 °C | -2.6 °C | -8.7 | -74.9 mm | -0.8 h | +0.3 % | +0.4 m/s | -2.4 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Key West in October?
The average daily high is around 28 °C, with an average daily low of about 27 °C.
Can you swim in Key West in October?
The sea is about 28 °C (very warm).
Does it rain a lot in Key West in October?
The curated estimate is about 17 rainy days per month, not a directly measured long-term average. Total precipitation averages around 130 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Key West?
By the climate score, February, March, April and December are the strongest months for Key West. For a beach trip: February, March, April and November. October is not among them.