Crumlin Weather in January

January in Crumlin sees daytime temperatures around 9°C (48°F) and lows of 3°C (37°F) at night. With around 79 mm (3.1 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Crumlin in January

Expect around 22 days of rain based on historical data, with 79 mm (3.1 in) average. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.

Temperature in Crumlin in January

Daytime highs in Crumlin in January reach 9°C (48°F), with nights around 3°C (37°F). The month of January belongs to the winter season. It stays cool throughout the day, so warm layers are a good idea from morning to evening. At 3°C (37°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions. The coldest month of the year calls for plenty of warm layers. Be sure to pack your winter gear.

Sunshine in Crumlin in January

The area sees fewer sunny days, with a projection of about 45 hours of sunshine. This reduced sunlight makes it ideal for those who prefer overcast conditions over bright sunny days.

Wind Speed in Crumlin in January

Wind speeds average 5 m/s (10 knots) during January. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.

Average water temperature in January

The water sits at 8°C (46°F) this month, which is well below what most people consider swimmable. Wetsuits help, but expect it to still feel cold.

If you're looking for dry conditions and comfortable temperatures, January may not be the ideal month to visit Crumlin. Our weather planner can help you explore destinations with more pleasant weather conditions.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Crumlin's climate page.

Crumlin Temperature in January

Min Temperature 3°C (37°F)  

Max Temperature 9°C (48°F)  

Water Temperature 8°C (46°F) *  

Chance of Rain 72%  

Precipitation 79 mm (3.1 in)  

Rainy days 22 days  

Humidity 89% *  

Windspeed 5 m/s (10 knots) *  

Sunshine 45 hours *  

Percentage Sunshine 18% *  

* Data from: Belfast, Ireland (3 KM, 2 Miles).

What to Wear in Crumlin in January

We recommend to layer up for chilly conditions in Crumlin in January. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Rain is likely on several days, so bring a good rain jacket. With water temperatures around 8°C (46°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Crumlin in January

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

Swimming

4/10

Cycling

4/10

Walking

4/10

Camping

4/10

Outdoor sports

4/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Crumlin's climate page.

More climate data for Crumlin

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Crumlin climate overview or explore weather in the United Kingdom.