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January Weather in St Just, United Kingdom

Last updated: August 27, 2025

In January, the average temperature in St Just, United Kingdom hovers around 9°C (49°F). Expect cooler days with a minimum of 4°C (40°F) and a pleasant maximum of 15°C (58°F). Be prepared for some rain, as 87 mm (3.4 in) of precipitation typically falls over 15 days, accompanied by an average humidity level of 81%.

January Temperature in St Just

In January in St Just, the average temperature is 9°C (49°F). Maximums can reach 15°C (58°F), while minimums can drop as low as 4°C (40°F). Be prepared for cool weather and pack accordingly for your travels!

January Weather in St Just: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in St Just, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In St Just, January typically has an average temperature of 9°C (49°F), with highs reaching up to 15°C (58°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec494848505358626260575351
Data source: Temperature data for St Just generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in St Just

In St Just in January, the precipitation amount is 87 mm (3.4 in) over the course of 15 days.

January Precipitation Trends in St Just

The chart displays monthly precipitation patterns in St Just, 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 St Just, January typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec879990446469665873139125150
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in St Just

In St Just in January humidity is 81%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill clinging to your skin, making outdoor explorations rather uncomfortable and potentially dreary for travelers.

January Average Humidity in St Just

This chart illustrates the average monthly humidity levels in St Just, 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 St Just is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%84%82%83%85%85%85%85%84%84%82%81%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in St Just

In St Just 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 St Just, you can visit Hourly UV Index in St Just.

Maximum UV Index Levels in St Just for January

The chart shows the monthly maximum UV Index (UVI) for St Just 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 St Just typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224679886421
Data source: St Just 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 St Just Compares to Other Months

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

This table compares monthly weather conditions in St Just, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)87 mm (3.4 inches)81%low
February Weather9°C (49°F)99 mm (3.9 inches)83%low
March Weather9°C (49°F)90 mm (3.6 inches)82%moderate
April Weather10°C (50°F)44 mm (1.7 inches)83%high
May Weather12°C (54°F)64 mm (2.5 inches)85%high
June Weather14°C (58°F)69 mm (2.7 inches)85%very high
July Weather17°C (62°F)66 mm (2.6 inches)85%very high
August Weather16°C (62°F)58 mm (2.3 inches)85%very high
September Weather16°C (61°F)73 mm (2.9 inches)84%high
October Weather14°C (57°F)139 mm (5.5 inches)84%moderate
November Weather12°C (53°F)125 mm (4.9 inches)82%low
December Weather10°C (51°F)150 mm (5.9 inches)81%low

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