Waterville Weather in October
October in Waterville brings moderate temperatures, with daytime highs of 15°C (59°F) and nights around 10°C (50°F). Quite a bit of rainfall is expected, around 152 mm (6 in), so pack an umbrella.
Rainfall in Waterville in October
On average, there are about 24 days with rain during this month, averaging 152 mm (6 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Waterville in October
Waterville in October gets highs of 15°C (59°F) during the day and drops to 10°C (50°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to 10°C (50°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Waterville in October
With limited sunshine this month, there are about 82 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.
Wind Speed in Waterville in October
Wind speeds average 5 m/s (10 knots) during October. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.
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.Should you favor a climate that's both dry and comfortably warm, May, June, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 Waterville's climate page.
Waterville Temperature in October
Min Temperature
10°C (50°F)
Max Temperature
15°C (59°F)
Water Temperature
14°C (57°F) *
Chance of Rain
78%
Precipitation
152 mm (6 in)
Rainy days
24 days
Humidity
78% *
Windspeed
5 m/s (10 knots) *
Sunshine
82 hours *
Percentage Sunshine
27% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Waterville typically stay consistent throughout October, with daily highs averaging around 15°C (59°F). Nights are cool, with lows typically ranging from 8°C (46°F) to 11°C (52°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 Waterville in October
Browse day-by-day weather records for Waterville spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Waterville historical weather extremes in October
The extremes listed below come from historical weather data collected in Waterville from 1986 through 2025.
- Waterville recorded its highest October temperature of 22°C (72°F) on October 19, 1997.
- The coldest October day was on October 27, 2018, with a maximum of 8°C (46°F).
- The coldest night in October in Waterville was on October 24, 2003, with a minimum of 0°C (32°F).
- Peak precipitation in October occurred on October 4, 2016, when 92 mm (3.6 in) of precipitation was measured.
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
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tolerable
unpleasant
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What to Wear in Waterville in October
Pack for changing conditions in Waterville 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. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! With water temperatures around 14°C (57°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.What To Do in Waterville 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 Waterville's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Waterville climate overview or explore weather in Ireland.
