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January Weather in Bath, United States

Last updated: June 24, 2025

In January, the average temperature in Bath, United States hovers around -4°C (25°F), with extremes ranging from a chilly -26°C (-15°F) to a mild 17°C (63°F). Expect about 67 mm (2.6 in) of precipitation over 10 days, contributing to the high average humidity of 90%. 🌧️ Stay warm and prepared for varied weather!

January Temperature in Bath

In January in Bath, the average temperature is -4°C (25°F). The maximum can reach 17°C (63°F), while the minimum can be as low as -26°C (-15°F). Be prepared for a wide temperature range when traveling, so pack accordingly!

January Weather in Bath: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Bath, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bath, January typically has an average temperature of -4°C (25°F), with highs reaching up to 17°C (63°F) and lows dropping to around -26°C (-15°F).
JanFebMarAprMayJunJulAugSepOctNovDec252734455766716963523730
Data source: Temperature data for Bath 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 Bath

In Bath in January, the total precipitation amount is 67 mm (2.6 in) over a period of 10 days.

January Precipitation Trends in Bath

The chart displays monthly precipitation patterns in Bath, 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 Bath, January typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec6782761081159513378841287582
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Bath

In Bath in January humidity is 90%. With an average temperature of -4°C (25°F), this humidity feels like a dense, icy blanket wrapping around you, making travel feel particularly stifling in the cold despite the sub-zero temperatures.

January Average Humidity in Bath

This chart illustrates the average monthly humidity levels in Bath, 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 Bath is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Bath

In Bath in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Bath, you can check the information here.

Maximum UV Index Levels in Bath for January

The chart shows the monthly maximum UV Index (UVI) for Bath 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 Bath typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346810101098642
Data source: Bath 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 Bath Compares to Other Months

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

This table compares monthly weather conditions in Bath, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)67 mm (2.6 inches)90%moderate
February Weather-3°C (28°F)82 mm (3.2 inches)90%moderate
March Weather1°C (35°F)75 mm (3.0 inches)87%high
April Weather7°C (46°F)108 mm (4.3 inches)88%very high
May Weather14°C (58°F)115 mm (4.5 inches)82%very high
June Weather19°C (66°F)95 mm (3.7 inches)79%very high
July Weather22°C (71°F)133 mm (5.2 inches)78%very high
August Weather21°C (69°F)78 mm (3.1 inches)76%very high
September Weather17°C (63°F)84 mm (3.3 inches)78%very high
October Weather11°C (53°F)128 mm (5.0 inches)84%high
November Weather3°C (38°F)75 mm (3.0 inches)89%moderate
December Weather-1°C (31°F)82 mm (3.2 inches)86%low

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