Ireland
Dublin in October: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Dublin in October is climatically mixed. The average daily high is around 13 °C, and the sea is about 13 °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
26/100 · #7
Warmth
#6
Dryness
#10
Sun
#8
Sea warmth
#4
Published best categories: none
Dublin · OctoberPhoto: Holger Uwe Schmitt · CC BY-SA 4.0Climate facts
- Average high
- 13 °C
- Average low
- 9 °C
- Sea
- 13 °C
- Rainy days (est.)
- 17 rainy days (est.)
- Sun (est.)
- 2 h/day
- Humidity
- 88 %
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 | 16 | 11 | 14 | 81 | 3.7 | 87 | 4.2 | 15 | 40 |
| October (selected) | 13 | 9 | 17 | 101 | 2.2 | 88 | 4.9 | 13 | 26 |
| November | 10 | 7 | 18 | 104 | 1.1 | 91 | 5.3 | 12 | 17 |
How do the previous and next months compare?
Baseline: October (26/100)
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 | +14 | +2.8 °C | +2 °C | -3.2 | -19.7 mm | +1.5 h | -1.1 % | -0.7 m/s | +1.2 °C |
| November | -9 | -3.1 °C | -2.4 °C | +1.3 | +3.5 mm | -1.1 h | +2.3 % | +0.4 m/s | -1.3 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Dublin in October?
The average daily high is around 13 °C, with an average daily low of about 9 °C.
Can you swim in Dublin in October?
The sea is about 13 °C (cold).
Does it rain a lot in Dublin in October?
The curated estimate is about 17 rainy days per month, not a directly measured long-term average. Total precipitation averages around 101 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Dublin?
No month in Dublin reaches the threshold for a clear recommendation in the climate score; the month comparison above shows the differences.