Ireland · 30-year monthly climate averages
Based on 30 years of climate data, the most comfortable months to visit Cork are June, July and August, when daytime temperatures are agreeable and rainfall is relatively low.
Cork sees its warmest weather in July, when daytime highs average around 19°C, and its coolest in January (around 8°C).
Annual precipitation totals roughly 1239mm — December is typically the wettest month (~137mm) and May the driest (~81mm).
A distinctly wetter period runs from October to January — worth planning around if you prefer dry days.
May is the sunniest month, with about 191 hours of sunshine.
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
Daily forecast highs vs the 30-year normal — last 60 days
Each bar is one day: orange above normal, blue below.
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 8° / 3°C | 131mm | ⚠️ Challenging |
| February | 9° / 3°C | 97mm | ⚠️ Challenging |
| March | 10° / 4°C | 92mm | ⚠️ Challenging |
| April | 12° / 5°C | 87mm | 🤔 Fair |
| May | 15° / 8°C | 81mm | 👍 Good |
| June | 17° / 10°C | 83mm | 👍 Good |
| July | 19° / 12°C | 87mm | 👍 Good |
| August | 18° / 12°C | 95mm | 👍 Good |
| September | 17° / 10°C | 92mm | 👍 Good |
| October | 13° / 8°C | 131mm | 🤔 Fair |
| November | 10° / 5°C | 127mm | ⚠️ Challenging |
| December | 9° / 4°C | 137mm | ⚠️ Challenging |
January in Cork is chilly, with average daytime highs around 8°C (47°F) and nighttime lows near 3°C (38°F). Expect roughly 131mm of precipitation spread over about 17 rainy days, and this is one of the wetter months.
☀️ About 61 hours of sunshine over the month (~2h/day).
🎒 What to pack — jacket or coat · long-sleeve layers · compact umbrella or rain jacket
February in Cork is chilly, with average daytime highs around 9°C (47°F) and nighttime lows near 3°C (38°F). Expect roughly 97mm of precipitation spread over about 14 rainy days, with a moderate amount of rain.
☀️ About 74 hours of sunshine over the month (~2h/day).
🎒 What to pack — jacket or coat · long-sleeve layers
March in Cork is chilly, with average daytime highs around 10°C (50°F) and nighttime lows near 4°C (39°F). Expect roughly 92mm of precipitation spread over about 13 rainy days, with a moderate amount of rain.
☀️ About 111 hours of sunshine over the month (~4h/day).
🎒 What to pack — jacket or coat · long-sleeve layers
April in Cork is chilly, with average daytime highs around 12°C (54°F) and nighttime lows near 5°C (42°F). Expect roughly 87mm of precipitation spread over about 12 rainy days, with a moderate amount of rain.
☀️ About 160 hours of sunshine over the month (~5h/day).
🎒 What to pack — jacket or coat · long-sleeve layers
May in Cork is mild, with average daytime highs around 15°C (58°F) and nighttime lows near 8°C (46°F). Expect roughly 81mm of precipitation spread over about 12 rainy days, with a moderate amount of rain.
☀️ About 191 hours of sunshine over the month (~6h/day).
🎒 What to pack — light jacket · layers for cool evenings
June in Cork is mild, with average daytime highs around 17°C (63°F) and nighttime lows near 10°C (50°F). Expect roughly 83mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
☀️ About 184 hours of sunshine over the month (~6h/day).
🎒 What to pack — light jacket · layers for cool evenings
July in Cork is mild, with average daytime highs around 19°C (65°F) and nighttime lows near 12°C (53°F). Expect roughly 87mm of precipitation spread over about 12 rainy days, with a moderate amount of rain.
☀️ About 164 hours of sunshine over the month (~5h/day).
🎒 What to pack — light jacket · layers for cool evenings
August in Cork is mild, with average daytime highs around 18°C (65°F) and nighttime lows near 12°C (53°F). Expect roughly 95mm of precipitation spread over about 12 rainy days, with a moderate amount of rain.
☀️ About 158 hours of sunshine over the month (~5h/day).
🎒 What to pack — light jacket · layers for cool evenings
September in Cork is mild, with average daytime highs around 17°C (62°F) and nighttime lows near 10°C (50°F). Expect roughly 92mm of precipitation spread over about 12 rainy days, with a moderate amount of rain.
☀️ About 129 hours of sunshine over the month (~4h/day).
🎒 What to pack — light jacket · layers for cool evenings
October in Cork is chilly, with average daytime highs around 13°C (56°F) and nighttime lows near 8°C (46°F). Expect roughly 131mm of precipitation spread over about 15 rainy days, and this is one of the wetter months.
☀️ About 99 hours of sunshine over the month (~3h/day).
🎒 What to pack — jacket or coat · long-sleeve layers · compact umbrella or rain jacket
November in Cork is chilly, with average daytime highs around 10°C (51°F) and nighttime lows near 5°C (42°F). Expect roughly 127mm of precipitation spread over about 16 rainy days, and this is one of the wetter months.
☀️ About 75 hours of sunshine over the month (~2h/day).
🎒 What to pack — jacket or coat · long-sleeve layers · compact umbrella or rain jacket
December in Cork is chilly, with average daytime highs around 9°C (48°F) and nighttime lows near 4°C (39°F). Expect roughly 137mm of precipitation spread over about 17 rainy days, and this is one of the wetter months.
☀️ About 55 hours of sunshine over the month (~2h/day).
🎒 What to pack — jacket or coat · long-sleeve layers · compact umbrella or rain jacket