Cahersiveen Weather in January
January in Cahersiveen brings low temperatures around 10°C (50°F) during the day, dropping to 5°C (41°F) at night, with quite a bit of rainfall expected, averaging around 162 mm (6.4 in) for the month.
Rainfall in Cahersiveen in January
Past climate data indicates that roughly 24 days will see rain, totalling around 162 mm (6.4 in) for the month. 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 Cahersiveen in January
In January, Cahersiveen sees low temperatures, with highs of 10°C (50°F). Nights drop to around 5°C (41°F). Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. With lows around 5°C (41°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep. With moderate temperatures, January stands out as the chilliest month of the year.
Sunshine in Cahersiveen in January
The area experiences limited sunny days, amounting to roughly 44 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.
Wind Speed in Cahersiveen in January
Wind speeds average 6 m/s (12 knots) during January. At this speed, expect strong winds that make large branches move and create some resistance when walking. Since this is an average, some days have fresh winds while others have strong breezes that can make umbrellas tricky to control.
Average water temperature in January
At 10°C (50°F), the water is too cold for most people to swim comfortably. A wetsuit is pretty much essential if you plan to go in.January in Cahersiveen has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
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 Cahersiveen's climate page.
Cahersiveen Temperature in January
Min Temperature
5°C (41°F)
Max Temperature
10°C (50°F)
Water Temperature
10°C (50°F) *
Chance of Rain
81%
Precipitation
162 mm (6.4 in)
Rainy days
24 days
Humidity
78% *
Windspeed
6 m/s (12 knots) *
Sunshine
44 hours *
Percentage Sunshine
19% *
Daily Historical Temperatures
50-year average (1976-2026)
Based on our historical records, temperatures in Cahersiveen typically stay consistent throughout January, with daily highs averaging around 10°C (50°F). Nights are cold, with lows around 5°C (41°F).
Average temperatures in January
Daily Historical Precipitation
50-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Cahersiveen in January
Browse day-by-day weather records for Cahersiveen spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cahersiveen historical weather extremes in January
Based on weather observations in Cahersiveen between 2000 and 2025, these are the recorded extremes during January.
- The warmest day in January was on January 1, 2022, with a maximum of 15°C (59°F).
- The lowest daytime temperature in January was 2°C (36°F), recorded on January 10, 2010.
- The lowest overnight temperature recorded in January was -4°C (25°F) (January 2, 2010).
- The heaviest January precipitation occurred on January 12, 2010, when 59 mm (2.3 in) of precipitation fell.
Best Places in Ireland in January
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in January →
perfect weather
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tolerable
unpleasant
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What to Wear in Cahersiveen in January
The weather can be unpredictable in January, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. With water temperatures around 10°C (50°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 Cahersiveen in January
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 Cahersiveen's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Cahersiveen climate overview or explore weather in Ireland.
