January Weather in Portstewart

Last updated: March 2, 2024

The weather in Portstewart, United Kingdom, during January is characterized by an average temperature of 7°C (45°F). Highs can soar to 11°C (53°F), while lows may dip to 2°C (37°F). Typically, the humidity level in Portstewart throughout January hovers around 87%.

2°C (37°F)

Minimum temperature

7°C (45°F)

Average temperature

11°C (53°F)

Maximum temperature

87%

Humidity

Precipitation and Sunshine hours

In January, Portstewart averages 109 mm (4.3 inches) of rainfall, typically over the course of 17 rainy days. The month enjoys an average of 7 hours 49 minutes of daylight, with the sun shining for approximately 2 hours 20 minutes each day. Additionally, there is a 23% probability of sunny days during this period.

109 mm (4.3 inches)

Precipitation

17 rainy days

Rainy days

2 hours 20 minutes

Sunshine hours

23%

Chance of sun

UV Index

In January, the UV Index in Portstewart reaches a maximum of 1, indicating a level of Low exposure. The most intense UV radiation typically occurs between 09:00 and 11:00, during which unprotected skin may burn in as little as 45 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00
UVI	0	0	1	1	1	1	1	1	1	1	0	0	0
Exposure	Low
Time to burn	45 min