December Weather in St Martin

Last updated: March 2, 2024

The weather in St Martin, Guernsey, during December is characterized by an average temperature of 11°C (51°F). Highs can soar to 14°C (57°F), while lows may dip to 6°C (43°F). Typically, the humidity level in St Martin throughout December hovers around 90%.

6°C (43°F)

Minimum temperature

11°C (51°F)

Average temperature

14°C (57°F)

Maximum temperature

90%

Humidity

Precipitation and Sunshine hours

In December, St Martin averages 163 mm (6.4 inches) of rainfall, typically over the course of 21 rainy days. The month enjoys an average of 8 hours 13 minutes of daylight, with the sun shining for approximately 4 hours 11 minutes each day. Additionally, there is a 26% probability of sunny days during this period.

163 mm (6.4 inches)

Precipitation

21 rainy days

Rainy days

4 hours 11 minutes

Sunshine hours

26%

Chance of sun

UV Index

In December, the UV Index in St Martin reaches a maximum of 1, indicating a level of Low exposure. The most intense UV radiation typically occurs between 08:00 and 10:00, 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 1 1 1 1 1 1 1 1 1 0 0 0
Exposure Low
Time to burn 45 min

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