January weather forecast
Sligo, Ireland

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Weather in January

The year in Sligo commences with moderate temperatures between highs of 7°C (44.6°F) and lows of 1°C (33.8°F), a typical winter climate for this region. January is characterized by limited daylight hours, often resulting in darker, shorter days. The chill in the air is accompanied by frequent precipitation, making raincoats and umbrellas essential items. Despite the overcast skies, the few sunny hours provide a beautiful contrast against the city’s backdrop. Sea temperatures hover around a chilling 10°C (50°F) degrees, making swimming in the sea less enticing.

Temperature

In Sligo, the coldest months are January and February, registering an average high-temperature of 7°C (44.6°F).

Rainfall

In Sligo, in January, during 23 rainfall days, 131mm (5.16") of precipitation is typically accumulated. Throughout the year, there are 247 rainfall days, and 1260mm (49.61") of precipitation is accumulated.

Sea temperature

In Sligo, in January, the average water temperature is 10°C (50°F).
Note: Dipping into 10°C (50°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 13°C (55.4°F) can be jarring.

Daylight

In January, the average length of the day in Sligo is 8h and 2min.
On the first day of the month, sunrise is at 8:54 am and sunset at 4:20 pm. On the last day of January, in Sligo, Ireland, sunrise is at 8:24 am and sunset at 5:10 pm GMT.

Sunshine

January and December, with an average of 1h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index in Sligo, Ireland, are January and December, with an average maximum UV index of 0. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 0 in January suggests the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Jan 27, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What month is the coldest in Sligo?

The yearly lowest temperatures in Sligo, Ireland, occur in January and February, averaging a high-temperature of 7°C (44.6°F).

Is it cold in Sligo during January?

January temperatures in Sligo vary between a high-temperature of 7°C (44.6°F) and a low-temperature of 1°C (33.8°F).

How much does it rain in Sligo in January?

In January, in Sligo, the rain falls for 23 days. Throughout January, 131mm (5.16") of precipitation is accumulated.

What is the water temperature in January in Sligo?

In Sligo, Ireland, the average seawater temperature in January is 10°C (50°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.

What is the average length of the day in January in Sligo?

In Sligo, Ireland, the average day length in January is 8h and 2min.

What time are sunrise and sunset in January in Sligo?

On the first day of January in Sligo, sunrise is at 8:54 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 8:24 am and sunset at 5:10 pm GMT.

What is the month with the least sunshine in Sligo?

January and December, with an average of 1h of sunshine, are months with the least sunshine in Sligo, Ireland.

How long on average sun shines in January in Sligo?

In Sligo, Ireland, the average sunshine duration in January is 1h.

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

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

How high is the UV index in January in Sligo?

The average daily maximum UV index in January in Sligo, Ireland, is 0. A UV Index reading of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
Average high temperature
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average UV index

Average temperature in January
Sligo, Ireland

Average temperature in January - Sligo, Ireland
  • Average high temperature in January: 7°C

The warmest months (with the highest average high temperature) are July and August (18°C).
The months with the lowest average high temperature are January and February (7°C).

  • Average low temperature in January: 1°C

The months with the highest average low temperature are July and August (10°C).
The coldest months (with the lowest average low temperature) are January and February (1°C).

Average rainfall in January
Sligo, Ireland

Average rainfall in January - Sligo, Ireland
  • Average rainfall in January: 130.8mm

The wettest month (with the highest rainfall) is October (134.3mm).
The driest month (with the least rainfall) is April (77.9mm).

Average rainfall days in January
Sligo, Ireland

Average rainfall days in January - Sligo, Ireland
  • Average rainfall days in January: 23 days

The months with the highest number of rainy days are January, October and December (23 days).
The months with the least rainy days are April and June (18 days).

Average sea temperature in January
Sligo, Ireland

Average sea temperature in January - Sligo, Ireland
  • Average sea temperature in January: 10°C

The best months for swimming (with the highest average sea temperature) are July, August and September (14°C).
The coldest months (with the lowest average sea temperature) are February, March and April (9°C).

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

Average daylight in January / Average sunshine in January - Sligo, Ireland
  • Average daylight in January: 8h and 0min

The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).

  • Average sunshine in January: 1h

The months with the most sunshine are April, May and June (Average sunshine: 5h).
The months with the least sunshine are January and December (Average sunshine: 1h).

Average UV index in January
Sligo, Ireland

Average UV index in January - Sligo, 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).

Sligo, Ireland

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