Dublin Weather in October
October in Dublin brings moderate temperatures around 15°C (59°F) during the day, dropping to 9°C (48°F) at night, with quite a bit of rainfall expected, averaging around 79 mm (3.1 in) for the month.
Rainfall in Dublin in October
You can expect rain on around 17 days based on historical patterns, with 79 mm (3.1 in) average for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.
Temperature in Dublin in October
Daytime temperatures in Dublin reach 15°C (59°F) in October, dropping to 9°C (48°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 9°C (48°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Dublin in October
With limited sunshine this month, there are about 97 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.
Wind Speed in Dublin in October
October has wind speeds averaging 5 m/s (10 knots). You can expect gentle to moderate winds that move small trees and make flags wave steadily on typical days. Conditions typically range from light breezes to moderate winds.
Average water temperature in October
At 14°C (57°F), the water is cool but manageable for those who don't mind a bit of a shock getting in. Most people adjust after a few minutes.If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Dublin.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Ireland, check out our Dublin's climate page.
Dublin Temperature in October
Min Temperature
9°C (48°F)
Max Temperature
15°C (59°F)
Water Temperature
14°C (57°F)
Chance of Rain
55%
Precipitation
79 mm (3.1 in)
Rainy days
17 days
Humidity
75%
Windspeed
5 m/s (10 knots)
Sunshine
97 hours
Percentage Sunshine
31%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Dublin typically stay consistent throughout October, with daily highs averaging around 15°C (59°F). Nights are cold, with lows typically ranging from 6°C (43°F) to 9°C (48°F).
Average temperatures in October
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Dublin in October
Browse day-by-day weather records for Dublin spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Dublin historical weather extremes in October
The extremes listed below come from historical weather data collected in Dublin from 1986 through 2025.
- On October 9, 2023, temperatures climbed to 22°C (72°F), marking the warmest October day on record.
- The coldest October day was on October 28, 2008, with a maximum of 5°C (41°F).
- The lowest overnight temperature recorded in October was -4°C (25°F) (October 30, 2018).
Best Places in Ireland in October
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in October →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Dublin in October
Pack for changing conditions in Dublin in October. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days. The water temperature sits at about 14°C (57°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Dublin in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Ireland, check out our Dublin's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Dublin climate overview or explore weather in Ireland.
