Westport

Mayo Weather in January

Average temperatures, rainfall, sunshine and the best places to visit in Mayo, Ireland in January.

Planning a trip to Mayo, Ireland this January? Here's what you need to know about the weather:

What to Expect in Mayo in January

Mayo, Ireland is a region in Ireland. January in Mayo generally has cold temperatures, with precipitation levels ranging from high to heavy. It's the height of winter.

Temperatures

You can expect cold maximum daytime temperatures of around 9°C (48°F) and nighttime temperatures around 4°C (39°F) in Westport. Typically, it's the chilliest month of the year. Making it a great time for staying indoors and enjoying the warmth. Make sure you're prepared by packing the right winter outfits.

To explore the conditions in Mayo, Ireland in more detail, check the map below.

Precipitation

In January, precipitation varies across different areas. From high rainfall in Claremorris with an average of 107 mm (4.2 in) to heavy rainfall in Louisburgh with 162 mm (6.4 in).

Average sunshine

Sunshine is more limited in many areas during this month. Westport receives about 45 hours of sunlight. For sunnier weather, check our weather planner to find destinations with better conditions.

Explore Mayo by month

Best Places to Visit in Mayo in January

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Mayo.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Mayo

What is the weather like in January for some of the most popular destinations in Mayo, Ireland?

Temperature range in Mayo (January)

Precipitation variation in Mayo (January)

Westport

In January Westport generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 4°C (39°F) and high monthly rainfall. So on average the conditions are poor that month.

December
January
February
Max temperature
9°C (48°F)
9°C (48°F)
10°C (50°F)
Min temperature
4°C (39°F)
4°C (39°F)
3°C (37°F)
Monthly sun hours
35 hours
45 hours
60 hours
Monthly rainfall
133 mm (5.2 in)
127 mm (5 in)
118 mm (4.6 in)
Monthly rainy days
24 days
24 days
20 days
Weather conditions

Cong

In January Cong generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 3°C (37°F) and high monthly rainfall. So on average the conditions are poor that month.

December
January
February
Max temperature
9°C (48°F)
9°C (48°F)
10°C (50°F)
Min temperature
4°C (39°F)
3°C (37°F)
3°C (37°F)
Monthly sun hours
35 hours
45 hours
60 hours
Monthly rainfall
119 mm (4.7 in)
115 mm (4.5 in)
109 mm (4.3 in)
Monthly rainy days
23 days
23 days
19 days
Weather conditions

Castlebar

In January Castlebar generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 3°C (37°F) and high monthly rainfall. So on average the conditions are poor that month.

December
January
February
Max temperature
9°C (48°F)
9°C (48°F)
10°C (50°F)
Min temperature
4°C (39°F)
3°C (37°F)
3°C (37°F)
Monthly sun hours
35 hours
45 hours
60 hours
Monthly rainfall
122 mm (4.8 in)
118 mm (4.6 in)
110 mm (4.3 in)
Monthly rainy days
23 days
24 days
19 days
Weather conditions

Ballina

In January Ballina generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 4°C (39°F) and high monthly rainfall. So on average the conditions are poor that month.

December
January
February
Max temperature
10°C (50°F)
9°C (48°F)
10°C (50°F)
Min temperature
4°C (39°F)
4°C (39°F)
4°C (39°F)
Monthly sun hours
35 hours
45 hours
60 hours
Monthly rainfall
133 mm (5.2 in)
125 mm (4.9 in)
117 mm (4.6 in)
Monthly rainy days
23 days
24 days
19 days
Weather conditions

Belmullet

In January Belmullet generally has low temperatures with maximum daytime temperatures around 10°C (50°F), minimum nighttime temperatures around 6°C (43°F) and high monthly rainfall. So on average the conditions are poor that month.

December
January
February
Max temperature
11°C (52°F)
10°C (50°F)
10°C (50°F)
Min temperature
6°C (43°F)
6°C (43°F)
6°C (43°F)
Monthly sun hours
40 hours
45 hours
68 hours
Monthly rainfall
145 mm (5.7 in)
140 mm (5.5 in)
124 mm (4.9 in)
Monthly rainy days
24 days
24 days
20 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Mayo, in Ireland.

Popular cities in January

Day & night temperatures, rainfall and average weather in Mayo in January.

City Weather Day temp Night temp Rainfall
Westport 9°C (48°F) 4°C (39°F) 127 mm (5 in)
Cong 9°C (48°F) 3°C (37°F) 115 mm (4.5 in)
Castlebar 9°C (48°F) 3°C (37°F) 118 mm (4.6 in)
Ballina 9°C (48°F) 4°C (39°F) 125 mm (4.9 in)
Belmullet 10°C (50°F) 6°C (43°F) 140 mm (5.5 in)
Keel 10°C (50°F) 6°C (43°F) 145 mm (5.7 in)

Mayo weather in January: frequently asked questions

What is the weather like in Mayo, Ireland in January?

Expect poor weather across Mayo, Ireland in January. The popular destination of Westport averages 9°C (48°F) by day and 4°C (39°F) at night during this winter month.

What is the average temperature in Mayo, Ireland in January?

Average temperatures in Mayo, Ireland during January range from a nighttime low near 4°C (39°F) to a daytime high around 9°C (48°F) in Westport.

Does Mayo, Ireland get a lot of rain in January?

Mayo, Ireland sees substantial rainfall in January. Westport typically averages about 127 mm (5 in), a mix of wet and dry days, but bring an umbrella.

Is January a Good Time to Visit Mayo, Ireland?

Given the typically poor weather conditions in Westport, January may not be the ideal time to visit Mayo, Ireland.

On average, the best time to visit Mayo, Ireland is in May, June, July and August with generally tolerable weather in Westport. In contrast, January, February, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Mayo.

Weather and climate has detailed information for every country in the world. Are you going to Ireland? Get detailed 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.

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Need travel inspiration? Check out our bucket list articles and be inspired.