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January Weather in Phu Thai, Vietnam

Last updated: August 28, 2025

In Phu Thai, Vietnam, the average temperature in January is a pleasant 18°C (65°F). However, temperatures can vary, with a minimum of 8°C (47°F) and a maximum of 29°C (84°F). Expect some light rain as well, with precipitation averaging 29 mm (1.1 in) over 6 days. The humidity sits at a comfortable 66%, making this month a delightful time to experience the local climate.

January Temperature in Phu Thai

In January in Phu Thai, the average temperature is 18°C (65°F), with maximums reaching up to 29°C (84°F) and minimums dipping as low as 8°C (47°F). This pleasant climate makes Phu Thai an ideal destination for travelers seeking enjoyable weather and outdoor activities.

January Weather in Phu Thai: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Phu Thai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Phu Thai, January typically has an average temperature of 18°C (65°F), with highs reaching up to 29°C (84°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec646672768287868483777265
Data source: Temperature data for Phu Thai 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 Phu Thai

In Phu Thai in January, the precipitation amount is 29 mm (1.1 in) over the course of 6 days.

January Precipitation Trends in Phu Thai

The chart displays monthly precipitation patterns in Phu Thai, 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 Phu Thai, January typically receives around 29 mm (1.1 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec293454861762012724402502064435
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Phu Thai

In Phu Thai in January humidity is 66%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, making travel comfortable yet slightly sticky, perfect for leisurely strolls but requiring light, breathable clothing to fully enjoy the experience.

January Average Humidity in Phu Thai

This chart illustrates the average monthly humidity levels in Phu Thai, 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 Phu Thai is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec66%71%69%64%73%81%90%89%82%77%72%71%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Phu Thai

In Phu Thai in January, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Phu Thai.

Maximum UV Index Levels in Phu Thai for January

The chart shows the monthly maximum UV Index (UVI) for Phu Thai 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 Phu Thai typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810121313121313131197
Data source: Phu Thai 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 Phu Thai Compares to Other Months

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

This table compares monthly weather conditions in Phu Thai, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (65°F)29 mm (1.1 inches)66%very high
February Weather19°C (66°F)34 mm (1.3 inches)71%very high
March Weather22°C (72°F)54 mm (2.1 inches)69%extreme
April Weather24°C (76°F)85 mm (3.4 inches)64%extreme
May Weather28°C (83°F)176 mm (6.9 inches)73%extreme
June Weather30°C (87°F)201 mm (7.9 inches)81%extreme
July Weather30°C (86°F)272 mm (10.7 inches)90%extreme
August Weather29°C (85°F)440 mm (17.3 inches)89%extreme
September Weather28°C (83°F)250 mm (9.9 inches)82%extreme
October Weather25°C (77°F)206 mm (8.1 inches)77%extreme
November Weather22°C (73°F)44 mm (1.7 inches)72%very high
December Weather18°C (65°F)35 mm (1.4 inches)71%high

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