Spring (March–May): Average 45–54°F, mild but with occasional showers. March and April are rainier, while May is relatively dry. Common activities: Outdoor walks, visiting historical sites. Suggested clothing: Light jacket, comfortable trousers or skirt, and thermal underwear.
Summer (June–August): Average 57–60°F, warm and pleasant with occasional showers. July and August are drier months. Common activities: Hiking, outdoor picnics, visiting gardens. Suggested clothing: Light and breathable clothing such as short-sleeved shirts and trousers.
Autumn (September–November): Average 46–56°F, cool with more rainfall, especially in September and October. Common activities: Visiting museums, art galleries, or enjoying cozy indoor activities. Suggested clothing: Warm jacket, comfortable trousers or skirt, and rain gear.
Winter (December–February): Average 41–44°F, cold and damp with frequent rainfall. Common activities: Indoor activities, visiting heated greenhouses. Suggested clothing: Warm coat, scarf, hat, and gloves.
Leinster climatological average
Annual average temperature: approx. 50.9°F / Annual rainfall: approx. 768 mm / Summer humidity: 65%–75% / Rainiest month: September
Leinster monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
41.7°F
42.7
February
44.8°F
60
March
45.5°F
79.7
April
47.7°F
61
May
54.9°F
37.7
June
57.9°F
54.7
July
60.1°F
72.7
August
60.4°F
49.3
September
56.1°F
98
October
52.9°F
90.7
November
46.8°F
49
December
43.2°F
73.3
Leinster weather for the next seven days
9/13
Sunday
Mist
67.7°F/57.1°F
9/14
Monday
Patchy rain nearby
68.1°F/58.9°F
9/15
Tuesday
Patchy rain nearby
60.8°F/49.8°F
9/16
Wednesday
Patchy rain nearby
59.7°F/49.4°F
9/17
Thursday
Patchy rain nearby
58.5°F/49.3°F
9/18
Friday
Overcast
59.4°F/49.6°F
9/19
Saturday
Patchy rain nearby
59.9°F/47.8°F
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