January weather forecast
Swansea, United Kingdom

Swansea in January brings moderate temperatures and plenty of rain. This month records an average high temperature of 8°C (46.4°F) and a low of 4°C (39.2°F). Singling out this first month as the wettest period in Swansea, rainfall measures approximately 96mm (3.78") spread out over 20 days. These temperatures paired with the overcast conditions add a chilly touch to the winter atmosphere.

Temperature

The transition into January marks the average high-temperature at a still chilly 8°C (46.4°F), differing minimally from December's 8.7°C (47.7°F). Swansea's nocturnal average in January closely mirrors its daytime temperatures, settling at an icy 4°C (39.2°F).

Rainfall

In Swansea, in January, during 20 rainfall days, 96mm (3.78") of precipitation is typically accumulated. In Swansea, during the entire year, the rain falls for 201 days and collects up to 999mm (39.33") of precipitation.

Sea temperature

In Swansea, in January, the average water temperature is 8.8°C (47.8°F).
Note: Navigating the 8.8°C (47.8°F) at 13°C (55.4°F) is no joy, and temperatures less than 10°C (50°F) can threaten breathing and cause a chilling shock, gauging personal stamina.

Daylight

The average length of the day in January in Swansea is 8h and 26min.
On the first day of the month, sunrise is at 8:21 am and sunset at 4:16 pm. On the last day of January, sunrise is at 7:56 am and sunset at 5:01 pm GMT.

Sunshine

The months with the least sunshine in Swansea, United Kingdom, are January, November and December, with an average of 2h of sunshine.

UV index

In Swansea, the average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 1 in January converts into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Boost your sun resistance with garments that are densely woven yet spacious.