January Weather in Saint Andrew, Guernsey

Last updated: August 23, 2025

In January, the average temperature in Saint Andrew, Guernsey hovers around 9°C (49°F), with minimums dipping to 3°C (37°F) and maximums peaking at 14°C (57°F). Expect 94 mm (3.7 in) of precipitation over approximately 14 days, resulting in an average humidity of 89%. Prepare for a wet and cool month!

January Temperature in Saint Andrew

In January in Saint Andrew, the average temperature is 9°C (49°F). The maximum can reach 14°C (57°F), and the minimum can be as low as 3°C (37°F). This mild weather makes Saint Andrew a great destination for travelers seeking to explore without the extremes of heat or cold.

January Weather in Saint Andrew: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Saint Andrew, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Andrew, January typically has an average temperature of 9°C (49°F), with highs reaching up to 14°C (57°F) and lows dropping to around 3°C (37°F).

Data source: Temperature data for Saint Andrew generated using information from the Copernicus Climate Change Service.

January Precipitation in Saint Andrew

In Saint Andrew in January, the precipitation amount is 94 mm (3.7 in) recorded over the course of 14 days.

January Precipitation Trends in Saint Andrew

The chart displays monthly precipitation patterns in Saint Andrew, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Saint Andrew, January typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 14 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Saint Andrew

In Saint Andrew in January, humidity is 89%. With an average temperature of 9°C (49°F), this humidity feels like a persistent dampness that clings to your clothes and skin, making it challenging to stay comfortable while traveling.

January Average Humidity in Saint Andrew

This chart illustrates the average monthly humidity levels in Saint Andrew, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Saint Andrew is approximately 89%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Saint Andrew

In Saint Andrew in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Saint Andrew, you can visit Hourly UV Index in Saint Andrew.

Maximum UV Index Levels in Saint Andrew for January

The chart shows the monthly maximum UV Index (UVI) for Saint Andrew in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Saint Andrew typically reaches 2, which falls under the low exposure category.

Data source: Saint Andrew January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Saint Andrew Compares to Other Months

Weather in Saint Andrew varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Saint Andrew, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Saint Andrew, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	94 mm (3.7 inches)	89%	low
February Weather	9°C (48°F)	86 mm (3.4 inches)	88%	moderate
March Weather	9°C (49°F)	73 mm (2.9 inches)	85%	moderate
April Weather	10°C (50°F)	34 mm (1.3 inches)	84%	high
May Weather	12°C (54°F)	55 mm (2.2 inches)	81%	high
June Weather	14°C (58°F)	59 mm (2.3 inches)	77%	very high
July Weather	16°C (62°F)	37 mm (1.5 inches)	63%	very high
August Weather	17°C (63°F)	50 mm (2.0 inches)	71%	high
September Weather	17°C (62°F)	63 mm (2.5 inches)	76%	high
October Weather	15°C (59°F)	144 mm (5.7 inches)	89%	moderate
November Weather	12°C (54°F)	126 mm (5.0 inches)	90%	low
December Weather	11°C (51°F)	163 mm (6.4 inches)	90%	low