Ireland
Galway in October: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Galway in October is climatically mixed. The average daily high is around 13 °C, and the sea is about 14 °C. With about 19 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
23/100 · #7
Warmth
#6
Dryness
#9
Sun
#8
Sea warmth
#5
Published best categories: none
Galway · OctoberPhoto: Wolfgang Glock · CC BY-SA 3.0Climate facts
- Average high
- 13 °C
- Average low
- 7 °C
- Sea
- 14 °C
- Rainy days (est.)
- 19 rainy days (est.)
- Sun (est.)
- 2 h/day
- Humidity
- 90 %
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 | 17 | 10 | 17 | 87 | 3.6 | 86 | 3.4 | 15 | 40 |
| October (selected) | 13 | 7 | 19 | 110 | 2.1 | 90 | 3.6 | 14 | 23 |
| November | 10 | 5 | 20 | 116 | 1.0 | 94 | 3.6 | 12 | 15 |
How do the previous and next months compare?
Baseline: October (23/100)
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 | +17 | +3.9 °C | +2.4 °C | -2.2 | -22.6 mm | +1.5 h | -4.6 % | -0.2 m/s | +1.6 °C |
| November | -8 | -3.5 °C | -2.3 °C | +0.9 | +6.6 mm | -1.1 h | +3.2 % | ±0 m/s | -1.8 °C |
All twelve months in context

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Useful next decisions
Frequently asked questions
How warm is Galway in October?
The average daily high is around 13 °C, with an average daily low of about 7 °C.
Can you swim in Galway in October?
The sea is about 14 °C (cold).
Does it rain a lot in Galway in October?
The curated estimate is about 19 rainy days per month, not a directly measured long-term average. Total precipitation averages around 110 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Galway?
No month in Galway reaches the threshold for a clear recommendation in the climate score; the month comparison above shows the differences.