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January Weather in Long Beach, United States

Last updated: June 24, 2025

In January, the average temperature in Long Beach, United States hovers around 12°C (54°F). Expect a range with minimums dipping to -3°C (26°F) and maximums reaching up to 23°C (74°F). During this period, you'll likely encounter 107 mm (4.2 in) of precipitation spread over approximately 10 days, accompanied by an average humidity of 82%.

January Temperature in Long Beach

In January in Long Beach, the average temperature is 12°C (54°F). Maximum temperatures can reach up to 23°C (74°F), while minimums can drop as low as -3°C (26°F). Be prepared for a range of weather conditions, so pack layers when visiting during this time.

January Weather in Long Beach: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Long Beach, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Long Beach, January typically has an average temperature of 12°C (54°F), with highs reaching up to 23°C (74°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec545864697681828280746357
Data source: Temperature data for Long Beach 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 Long Beach

In Long Beach in January, the precipitation amount is 107 mm (4.2 in) accumulated over a period of 10 days.

January Precipitation Trends in Long Beach

The chart displays monthly precipitation patterns in Long Beach, 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 Long Beach, January typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec1071228912613827920024015613359120
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Long Beach

In Long Beach in January humidity is 82%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket wrapping around you, making every step feel sluggish and sweat-inducing, which can be quite uncomfortable for traveling.

January Average Humidity in Long Beach

This chart illustrates the average monthly humidity levels in Long Beach, 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 Long Beach is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%78%73%71%79%78%80%76%83%87%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Long Beach

In Long Beach in January, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Long Beach.

Maximum UV Index Levels in Long Beach for January

The chart shows the monthly maximum UV Index (UVI) for Long Beach 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 Long Beach typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111111121110864
Data source: Long Beach 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 Long Beach Compares to Other Months

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

This table compares monthly weather conditions in Long Beach, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)107 mm (4.2 inches)82%moderate
February Weather15°C (59°F)122 mm (4.8 inches)80%very high
March Weather18°C (64°F)89 mm (3.5 inches)80%very high
April Weather20°C (69°F)126 mm (4.9 inches)78%extreme
May Weather24°C (76°F)138 mm (5.4 inches)73%extreme
June Weather27°C (81°F)279 mm (11.0 inches)71%extreme
July Weather28°C (82°F)200 mm (7.9 inches)79%extreme
August Weather28°C (83°F)239 mm (9.4 inches)78%extreme
September Weather27°C (80°F)155 mm (6.1 inches)80%very high
October Weather23°C (75°F)133 mm (5.2 inches)76%very high
November Weather17°C (63°F)59 mm (2.3 inches)83%high
December Weather14°C (58°F)120 mm (4.7 inches)87%moderate

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