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Shannon in January: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Shannon in January will be like? Take a look at our weather guide for Shannon, based on historical data.
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January

Weather in Shannon in January 2025

OK Weather
Chill
🌧️
Rainy
If you plan to visit Shannon in January, the weather is typically alright, with an average high temperature of +46°F during the day and approximately 1 sunny days. Expect some rainy, though, as there are typically 18 rainy days in the month and around 93 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • January is usually the coldest month of the year in Shannon;

Average weather

☀️
+46°F
Avg. max. temperature
+18°F
Min.
+57°F
Max.
93 mm
Total precipitation
88%
Avg. humidity
4 m/s
Avg. wind
1 ☀️
Sunny Days
10 ⛅️
Cloudy
18 🌦
Rainy
Our opinion: Shannon has OK weather in January.

Average temperature in Shannon in January

Here are the expected maximum, average and minimum temperatures in Shannon for January based on the historical data.
Last Year
Historical Data

Going from a maximum of +55°F during the day to a minimum of +25°F during the night, the temperature in January averages around +48°F.

The average maximum temperature goes up 12% by the end of the month, compared with the beginning of the month, from +45°F to +48°F.

Is Shannon warm or cold in January?

Shannon is typically chill in January.

Maximum temperatures go down compared to the previous month from +48°F to +46°F. The minimum temperature also goes down from +39°F to +37°F.

Pack a jumper and a jacket as there will be cooler temperatures.

January is the coldest month in Shannon, here is the comparison with other months:

Climate in Shannon in January

Shannon weather looks like this, on average, in January and the surrounding months.
DecemberJanuaryFebruary
Avg. temperature
+48°F+46°F+48°F
Min. temperature
+18°F+18°F+23°F
Max. temperature
+59°F+57°F+59°F
Rainfall
102 mm93 mm81 mm
Wind
4 m/s4 m/s4 m/s
Humidity
89%88%85%
Air pressure
1011 HPa1012 HPa1013 HPa
Sunny days
111
Cloudy days
111010
Rainy days
191816
Snowy days
121

January weather is still as ok as in December. It’s getting colder in January. From +48°F in the day, the average maximum temperature lowers to +46°F. As January arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 102 mm to 93 mm. It feels drier, as humidity decreases from 89% to 88%. The average wind speed doesn’t change much during January, staying around 4 m/s. The amount of sunny days stay about the same, averaging 1 sunny days during the month.

February brings much the same weather, it remains ok.

Wind

Wind speed in Shannon in January based on historical data.
Last Year
Historical Data

The average wind speed is 4 m/s getting up to 11 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Shannon is gradually increasing during January, going from 2 m/s to 6 m/s over the course of the month.

Rain

Amount of rainfall in mm during January in Shannon based on historical data.
Last Year
Historical Data
Typically, there is a 58% chance of rain on an average day in January, with total rainfall of approximately 91 mm. The maximum amount of rainfall per day is around 18 mm, which is considered light rain. January is a pretty wet month with over 18 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how January is compared with other months in the amount of precipitation, total mm:
Shannon wettest month is December, where a typical day has a 61% chance of precipitation and 102 mm of rainfall per day. April, on the other hand, is the driest month with a mere 63% chance of precipitation and 68 mm of rainfall per day.

How was the weather last January in Shannon?

This is the weather in Shannon in January 2023:
1 January
🌧️
+44°F
2 January
☀️
+45°F
3 January
🌧️
+56°F
4 January
🌧️
+53°F
5 January
☁️
+54°F
6 January
☁️
+51°F
7 January
🌧️
+47°F
8 January
☁️
+45°F
9 January
☁️
+45°F
10 January
🌧️
+56°F
11 January
🌧️
+53°F
12 January
☁️
+51°F
13 January
🌧️
+48°F
14 January
🌧️
+48°F
15 January
🌧️
+44°F
16 January
☁️
+37°F
17 January
☀️
+38°F
18 January
☁️
+41°F
19 January
☀️
+41°F
20 January
🌫️
+45°F
21 January
☁️
+51°F
22 January
☁️
+52°F
23 January
🌫️
+48°F
24 January
🌫️
+49°F
25 January
☁️
+49°F
26 January
☁️
+46°F
27 January
☁️
+45°F
28 January
🌫️
+47°F
29 January
☁️
+51°F
30 January
☁️
+48°F
31 January
☁️
+49°F
In January 2023 Shannon had 3 sunny days, 15 cloudy days, and 9 rainy days. The average maximum temperature was +48°F, with an absolute maximum of +55°F and a minimum of +37°F. The average humidity was 88%, with a maximum of 100% and a minimum of 66%. The average wind speed was 4 m/s, with a maximum of 18 m/s and a minimum of 0 m/s.
Are you planning a trip in January?

Climate Change Over the Years

This is how Shannon climate has changed over the last 43 years.

The climate in Shannon in January has not changed that much over the last 43 years.

The average temperature was the lowest in 1979 (+53°F) and the highest in 2023 (+57°F). The driest year was 2001 with only 746 mm of rainfall, and the wettest year was 2009 with 1263 mm.

FAQ

Frequently asked questions about the weather in Shannon in January:

Is January a good time to visit Shannon?

It’s always a good time to visit Shannon, but the weather is changeable in January, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Shannon in January?

Not really, January is not the best time to sunbathe, unless you visit a local solarium.

Is Shannon rainy in January?

Shannon is often rainy in January. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Shannon in January?

Usually, it’s not very sunny in Shannon in January, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Ireland

Check out the weather for other cities in Ireland.

Monthly weather in Shannon

Source of the data

For this page, we’ve looked at the typical weather in Shannon, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.