nomadseason

January Weather in Phon Sai, Thailand

Last updated: August 27, 2025

In January, the average temperature in Phon Sai, Thailand hovers around 25°C (77°F). You can expect minimum temperatures dipping to 11°C (52°F) and peaking at a warm 36°C (97°F). During this month, precipitation is sparse, with only 5 mm (0.2 in) falling over a single day, and the average humidity rests at a comfortable 56%.

January Temperature in Phon Sai

In January in Phon Sai, the average temperature is 25°C (77°F). Maximum temperatures can reach 36°C (97°F), while minimums can drop to as low as 11°C (52°F). This range makes it an ideal time for travelers to enjoy both warm days and cooler evenings.

January Weather in Phon Sai: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Phon Sai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Phon Sai, January typically has an average temperature of 25°C (77°F), with highs reaching up to 36°C (97°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec767884858585848382817976
Data source: Temperature data for Phon Sai generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Phon Sai

In Phon Sai in January, the precipitation amount is 5 mm (0.2 in) over a duration of 1 day.

January Precipitation Trends in Phon Sai

The chart displays monthly precipitation patterns in Phon Sai, 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 Phon Sai, January typically receives around 5 mm (0.2 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec5103365159139256253303171338
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Phon Sai

In Phon Sai in January humidity is 56%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace, making traveling somewhat sticky but still enjoyable, as long as you stay hydrated and take breaks in the shade.

January Average Humidity in Phon Sai

This chart illustrates the average monthly humidity levels in Phon Sai, 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 Phon Sai is approximately 56%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec56%50%41%44%71%84%87%90%89%83%74%68%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Phon Sai

In Phon Sai in January, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Phon Sai.

Maximum UV Index Levels in Phon Sai for January

The chart shows the monthly maximum UV Index (UVI) for Phon Sai 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 Phon Sai typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10131415151314141312109
Data source: Phon Sai 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 Phon Sai Compares to Other Months

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

This table compares monthly weather conditions in Phon Sai, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)5 mm (0.2 inches)56%very high
February Weather26°C (78°F)10 mm (0.4 inches)50%extreme
March Weather29°C (84°F)33 mm (1.3 inches)41%extreme
April Weather29°C (85°F)65 mm (2.6 inches)44%extreme
May Weather30°C (85°F)159 mm (6.3 inches)71%extreme
June Weather29°C (85°F)139 mm (5.5 inches)83%extreme
July Weather29°C (84°F)256 mm (10.1 inches)87%extreme
August Weather28°C (83°F)253 mm (10.0 inches)90%extreme
September Weather28°C (83°F)303 mm (11.9 inches)89%extreme
October Weather27°C (81°F)171 mm (6.7 inches)83%extreme
November Weather26°C (80°F)32 mm (1.3 inches)74%very high
December Weather24°C (76°F)8 mm (0.3 inches)68%very high

Compare Phon Sai's Climate with Cities Worldwide