January weather forecast
Galway, Ireland

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Weather in January

The first month of the year in Galway, Ireland, is characterized by a predominance of cool to mild temperatures, reaching highs around 8.7°C (47.7°F) and dipping to lows around 3.5°C (38.3°F). Consistent rainfall typically punctuates the weather landscape, and the city experiences the limited sunshine, culminating in a muted UV index. Compared with the upcoming months, daylight hours in January are relatively short, and the sea temperatures are mildly cool. Despite these conditions, January heralds the new year with the organic beauty of winter in full swing in Galway.

Temperature

January, with its high-temperature average of 8.7°C (47.7°F) and a low-temperature average of 3.5°C (38.3°F), is the coldest month in Galway.

Rainfall

In Galway, during January, the rain falls for 22 days and regularly aggregates up to 114mm (4.49") of precipitation. In Galway, during the entire year, the rain falls for 232 days and collects up to 1156mm (45.51") of precipitation.

Sea temperature

In January, the average sea temperature in Galway is 10.2°C (50.4°F).
Note: Swimming in 10.2°C (50.4°F) feels unbearing at 13°C (55.4°F) and can be life-risking below 10°C (50°F), causing breathing issues and cold shock, depending on a person's capacity.

Daylight

The average length of the day in January in Galway, Ireland, is 8h and 11min.
On the first day of January, sunrise is at 8:50 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 8:22 am and sunset at 5:16 pm GMT.

Sunshine

In Galway, the average sunshine in January is 2h.

UV index

January and December, with an average maximum UV index of 0, are months with the lowest UV index in Galway, Ireland. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index, 0 during January, leads to the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
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Frequently asked questions

What time of the year is the coldest in Galway?

Galway experiences its lowest temperatures in January, with an average peak of 8.7°C (47.7°F) and a low of 3.5°C (38.3°F).

What is the average January temperature in Galway?

An average high-temperature, in January, in Galway, is 8.7°C (47.7°F) and the average low-temperature is 3.5°C (38.3°F).

How much does it rain in Galway in January?

In Galway, Ireland, in January, it is raining for 22 days, with typically 114mm (4.49") of accumulated precipitation.

What is the sea water temperature in January in Galway?

In Galway, the average seawater temperature in January is 10.2°C (50.4°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

How many hours of daylight does Galway have in January?

The average day length in January is 8h and 11min.

What time are sunrise and sunset in January in Galway?

On the first day of January, sunrise is at 8:50 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 8:22 am and sunset at 5:16 pm GMT.

How long on average sun shines in January in Galway?

In Galway, Ireland, the average sunshine duration in January is 2h.

What are the months with the lowest UV index in Galway?

The months with the lowest UV index are January and December, with an average maximum UV index of 0.

How high is the UV index in January in Galway?

In January, the average daily maximum UV index is 0. A UV Index value of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in January
Galway, Ireland

Average temperature in January - Galway, Ireland
  • Average high temperature in January: 8.7°C

The warmest month (with the highest average high temperature) is July (20.5°C).
The month with the lowest average high temperature is January (8.7°C).

  • Average low temperature in January: 3.5°C

The month with the highest average low temperature is July (12.9°C).
The coldest month (with the lowest average low temperature) is January (3.5°C).

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Average rainfall in January
Galway, Ireland

Average rainfall in January - Galway, Ireland
  • Average rainfall in January: 114mm

The wettest month (with the highest rainfall) is October (130mm).
The driest month (with the least rainfall) is April (61mm).

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Average rainfall days in January
Galway, Ireland

Average rainfall days in January - Galway, Ireland
  • Average rainfall days in January: 22 days

The months with the highest number of rainy days are January and December (22 days).
The months with the least rainy days are April and July (16 days).

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Average sea temperature in January
Galway, Ireland

Average sea temperature in January - Galway, Ireland
  • Average sea temperature in January: 10.2°C

The best month for swimming (with the highest average sea temperature) is August (15.4°C).
The coldest month (with the lowest average sea temperature) is March (9.5°C).

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Average daylight in January /
Average sunshine in January
Galway, Ireland

Average daylight in January / Average sunshine in January - Galway, Ireland
  • Average daylight in January: 8h and 1min

The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).

  • Average sunshine in January: 2h

The month with the most sunshine is May (Average sunshine: 6h).
The month with the least sunshine is December (Average sunshine: 1h).

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Average UV index in January
Galway, Ireland

Average UV index in January - Galway, Ireland
  • Average UV index in January: 0

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 0).

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Galway, Ireland

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