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Castlebar weather in December (Mayo, Ireland)

What kind of weather does December bring to Castlebar? Curious if the timing is right for your trip? Our page offers an in-depth look at the monthly weather conditions.

Temperatures

In December, Castlebar tends to experience low temperatures and high rainfall. December is part of the winter season. Throughout the daytime, temperatures often hover around 9°C. However, as the sun sets and evening approaches, there's a noticeable cool-down. Temperatures gently drop to a more temperate 4°C.

Precipitation

Castlebar in December usually receives high rainfall, averaging around 122 mm for the month. With this being the wettest month, keeping an umbrella on hand might save you from getting wet from a sudden shower. You can typically expect 23 days days of rain this month, based on climate records.

Average sunshine

The month has fewer sunny days, with around 35 hours hours of sunshine, suitable for those who prefer less sun.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Castlebar. June typically offers the best circumstances. While January, February, November and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Castlebar climate page with graphs.

 

Castlebar, monthly averages in December

Min TemperatureMin Temperature 4°C  
Max TemperatureMax Temperature 9°C  
Chance of RainChance of Rain 77%  
PrecipitationPrecipitation 122 mm  
Rainy daysRainy days 23 days  
HumidityHumidity 90% *  
SunshineSunshine 35 hours *  
Percentage SunshinePercentage Sunshine 17% *  
Data from: Claremorris, Ireland (25 KM, 16 Miles).

Where to go in Ireland in December

Find out more about the weather in Ireland and which places have the best travel conditions in this month.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

Wear a base layer in cold weather; this is the #1 thing you can do to increase your overall body temperature.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming
4/10
Cycling
4/10
Walking
4/10
Camping
3/10
Outdoor sports
4/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Castlebar.

Our site offers climate and forecast data for every country in the world. Are you going to Ireland? On this website you can find historical weather averages for many cities in Ireland. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.