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Weather & Climate in Rosslare, Ireland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Rosslare experiences four distinct seasons with an average annual temperature of 51°F (10°C). Winters average 43°F in January while summers reach 60°F in July / relatively mild seasonal variation. The area gets 270 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 36.5 inches. The city sits at an elevation of 36 feet.
Temperature
43°F Jan (6°C)
60°F Jul (15°C)
| Annual Average | 50.7°F |
| 6% below US avg | |
| January Average | 43°F (6°C) |
| July Average | 60°F (15°C) |
| Sunny Days | 270 days/yr |
Geography
| Elevation | 36 ft (11 m) |
| Area | 257.8 sq mi (667.8 km²) |
| Population Density | 6/sq mi |
| Coordinates | 52.2718°N, 6.3899°W |
| Timezone | Europe/Dublin |
Precipitation & Snow
Air Quality
Earthquake History
2 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| May 29, 2013 | 14 km WSW of Nefyn, United Kingdom | M3.8 | 132 km | 10 km |
| Jun 26, 2013 | 14 km WSW of Nefyn, United Kingdom | M2.8 | 132 km | 8 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 4.1 in | Wettest |
| February | 43°F (6°C) | 3.2 in | Coldest |
| March | 45°F (7°C) | 2.8 in | |
| April | 47°F (9°C) | 2.1 in | |
| May | 52°F (11°C) | 2.3 in | |
| June | 56°F (14°C) | 2.1 in | |
| July | 60°F (15°C) | 2.1 in | Driest |
| August | 60°F (16°C) | 3.0 in | Warmest |
| September | 57°F (14°C) | 3.2 in | |
| October | 53°F (11°C) | 3.9 in | |
| November | 47°F (9°C) | 3.7 in | |
| December | 45°F (7°C) | 4.1 in |
Rosslare has a seasonal temperature swing of 17°F / from 43°F in February to 60°F in August. Total annual precipitation is 36.5 inches, with January being the wettest month (4.1") and July the driest (2.1").