Live Weather & Forecast
Weather in Castlebar
Mayo, Ireland · Real-time conditions & 3-day outlook
9°C
Feels like 7°C
49°F / Feels 44°F
Light drizzle
Castlebar, Mayo
🌞 Daytime
Updated: 2026-04-15 09:00
Humidity
92%
Wind
16.9 km/h S
Wind Gust
26.2 km/h
Pressure
1001 mb
Visibility
2 km
UV Index
0.5
(Low)
Precipitation
0.23 mm
Cloud Cover
86%
Dew Point
8°C
Wind Degree
176°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
123.9 μg/m³
NO₂
2.1 μg/m³
O₃
69 μg/m³
SO₂
1 μg/m³
PM 2.5
3.1 μg/m³
PM 10
3.4 μg/m³
Today's Hourly Forecast
24-hour breakdown for Castlebar, Mayo
12 AM
12°
Light rain
1 AM
12°
Light drizzle
2 AM
12°
Light rain
3 AM
10°
Light rain
4 AM
10°
Light rain shower
5 AM
9°
Moderate rain
6 AM
9°
Patchy rain nearby
7 AM
9°
Patchy rain nearby
8 AM
9°
Light drizzle
9 AM
9°
Light drizzle
10 AM
10°
Light rain shower
11 AM
11°
Patchy light drizzle
12 PM
12°
Patchy rain nearby
1 PM
11°
Light drizzle
2 PM
11°
Patchy rain nearby
3 PM
12°
Patchy rain nearby
4 PM
11°
Light rain shower
5 PM
11°
Patchy light drizzle
6 PM
8°
Light rain
7 PM
8°
Light rain
8 PM
8°
Light drizzle
9 PM
9°
Patchy light rain
10 PM
8°
Patchy rain nearby
11 PM
8°
Patchy rain nearby
3-Day Forecast
Daily overview for Castlebar, Mayo
Today
Moderate rain
12°
/
8°
🌧️ 98% chance of rain
💧 Avg. humidity: 88%
💨 Max wind: 32.4 km/h
🌧️ Total precip: 15.1 mm
☀️ UV Index: 0.7
🌅 Sunrise: 06:36 AM
🌇 Sunset: 08:39 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Patchy rain nearby
12°
/
8°
🌧️ 89% chance of rain
💧 Avg. humidity: 85%
💨 Max wind: 32.8 km/h
🌧️ Total precip: 2.48 mm
☀️ UV Index: 0.8
🌅 Sunrise: 06:34 AM
🌇 Sunset: 08:40 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Patchy rain nearby
12°
/
6°
🌧️ 88% chance of rain
💧 Avg. humidity: 84%
💨 Max wind: 31.3 km/h
🌧️ Total precip: 3.16 mm
☀️ UV Index: 0.7
🌅 Sunrise: 06:32 AM
🌇 Sunset: 08:42 PM
🌙 New Moon
🌑 Moon: 0% lit
Best Time to Visit Castlebar
Plan your trip to Castlebar, Ireland around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Castlebar?
Current conditions in Castlebar: Light drizzle, temperature 9°C, humidity 92%.
What is the best time to visit Castlebar?
The best time to visit Castlebar is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Castlebar?
Castlebar is located at approximately 53.9° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Castlebar?
The wettest period in Castlebar is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Castlebar?
For visits to Castlebar during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What are the public holidays in Castlebar in 2026?
View the 2026 public holidays for Castlebar on our Holidays page.
What are the GPS coordinates used for the weather forecast in Castlebar?
The weather forecast for Castlebar uses coordinates 53.8568, -9.298.