Inis Oírr weather by month & the best time to visit
Ireland · seaside town · oceanic / maritime climate
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The best time to visit Inis Oírr is July — its sunniest month (Sunshine Score 51/100), with August and June close behind. Inis Oírr averages about 1,409 hours of sunshine a year. Daytime highs around 17°C / 63°F and roughly 104 mm of rain in July.
When is the best time to visit Inis Oírr?
For sunshine, the best time to visit Inis Oírr is July, then August and June. The dullest month is February (0/100, 105 mm of rain). The full month-by-month picture is in the table below.
How sunny is Inis Oírr?
Inis Oírr isn't a sunny place by world standards: about 1,409 hours of sunshine a year. 51 Sunshine Score points separate July (51) from February (0), so the month you pick matters. It ranks #9 of 10 destinations in Ireland for annual sunshine, below the national median of 1,418 hours. The year's 1,313 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 5 | 9° / 48°F | 6° / 43°F | 134 mm | 0 | 9° / 48°F |
| February | 0 | 8° / 46°F | 5° / 41°F | 105 mm | 1 | 9° / 48°F |
| March | 6 | 9° / 48°F | 5° / 41°F | 95 mm | 2 | 9° / 48°F |
| April | 18 | 11° / 52°F | 7° / 45°F | 76 mm | 3 | 10° / 50°F |
| May | 35 | 14° / 57°F | 9° / 48°F | 87 mm | 4 | 13° / 55°F |
| June | 47 | 16° / 61°F | 12° / 54°F | 90 mm | 5 | 14° / 57°F |
| July | 51 | 17° / 63°F | 13° / 55°F | 104 mm | 4 | 15° / 59°F |
| August | 50 | 17° / 63°F | 13° / 55°F | 111 mm | 4 | 16° / 61°F |
| September | 45 | 16° / 61°F | 12° / 54°F | 103 mm | 3 | 15° / 59°F |
| October | 33 | 14° / 57°F | 10° / 50°F | 117 mm | 1 | 14° / 57°F |
| November | 15 | 11° / 52°F | 8° / 46°F | 149 mm | 1 | 13° / 55°F |
| December | 5 | 9° / 48°F | 6° / 43°F | 142 mm | 0 | 11° / 52°F |
Sea temperature in Inis Oírr by month
The sea off Inis Oírr is warmest in August at around 16°C / 61°F, and coolest in January at 9°C / 48°F. It never reaches comfortable swimming temperatures (21°C+). Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Inis Oírr: questions and answers
What kind of destination is Inis Oírr?
Inis Oírr is a seaside town in Ireland with a oceanic / maritime climate — the sea reaches 16°C at its warmest.
How many hours of sunshine does Inis Oírr get a year?
Inis Oírr gets about 1,409 hours of sunshine a year, at its best around July.
When is the best time to visit Inis Oírr?
The sunniest time to visit Inis Oírr is July, when the Sunshine Score peaks at 51/100 (with August and June close behind). Expect daytime highs around 17°C / 63°F.
What is the least sunny month in Inis Oírr?
February is the least sunny month in Inis Oírr, scoring 0/100 with about 105 mm of rain.
What is the sea temperature in Inis Oírr?
The sea in Inis Oírr ranges from about 9°C (January) to 16°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Inis Oírr?
The typical midday UV index in Inis Oírr peaks around 5 (moderate) in June, easing to about 0 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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