January Weather in Phuket, Thailand

Last updated: August 27, 2025

In January, Phuket, Thailand, welcomes visitors with a warm tropical climate characterized by an average temperature of 27°C (81°F), peaking at a comfortable 30°C (86°F). The month sees humidity levels around 76%, creating a pleasantly warm atmosphere. However, travelers should be prepared for occasional rain, as precipitation totals reach 111 mm (4.4 in) over approximately nine days. This blend of warmth and moisture makes January an ideal time for exploring the stunning beaches and vibrant culture of this beloved island destination.

January Temperature in Phuket

In January, Phuket welcomes visitors with delightful temperatures that set the stage for an ideal tropical getaway. The month starts with a comfortable minimum of 24°C (75°F), rising to an average of 27°C (81°F), and peaking at a pleasant 30°C (86°F). This harmonious climate invites beachgoers to bask in the sun while enjoying the vibrant outdoor activities the island has to offer. As the month progresses into February, temperatures see a slight increase, with the minimum rising to 25°C (77°F) and the maximum reaching 31°C (88°F). This upward trend continues through March, where the warmth embraces visitors with highs consistent around 31°C (89°F). Overall, January marks the beginning of the peak season in Phuket, where mild temperatures gradually escalate, promising balmy days filled with sunshine and adventure.

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

The chart illustrates January temperature patterns in Phuket, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Phuket, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec808182828282828281818180
Data source: Temperature data for Phuket 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 Phuket

In Phuket, Thailand, January marks the transition from the dry season to the onset of the wet season. During this month, the island receives an average precipitation of 111 mm (4.4 in) over approximately nine rainy days, setting the stage for the more robust rainfall that follows in the coming months. This amount is relatively modest compared to the dramatic increases seen in April and May, where precipitation spikes to 166 mm (6.6 in) and 267 mm (10.5 in), respectively. As the year progresses, particularly from May to October, rainfall becomes abundant, indicating a clear trend towards a significantly wetter climate. However, January allows visitors to enjoy milder weather while still experiencing occasional showers, making it an enticing time to explore the lush beauty of this tropical paradise.

January Precipitation Trends in Phuket

The chart displays monthly precipitation patterns in Phuket, 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 Phuket, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1111338166267275237265309319199124
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Phuket

In January, Phuket experiences a humidity level of 76%, marking the start of the year with a relatively comfortable tropical climate. As this month transitions into February, humidity dips to 73%, providing a brief respite before gradually increasing again through March (74%) and April (71%). Despite these fluctuations, the humidity begins to rise notably as the year progresses, peaking in the rainy months of July and August at 79% and 82%, respectively. This trend continues into the fall, where the levels remain high, averaging around 84% from September to December. Overall, January sets the stage for a humid year ahead, hinting at the tropical warmth and moisture that define Phuket's climate.

January Average Humidity in Phuket

This chart illustrates the average monthly humidity levels in Phuket, 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 Phuket is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%73%74%71%72%79%79%82%84%83%84%84%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Phuket

In January, Phuket, Thailand, experiences an incredibly high UV Index of 12, categorized as extreme, which means you could get sunburned in just 10 minutes of exposure. As the month progresses into February, the UV levels rise slightly to 14, remaining in the extreme category and consistently demanding vigilance when enjoying the island’s beautiful beaches. This trend continues into March and April, where the UV Index peaks at 15, offering no relief from the intense sun. From May to August, the index holds steady around 14 to 15, with that same 10-minute burn time, before slightly dipping in September and October to 14. Remarkably, the UV Index hovers around the same extreme levels throughout the rainy season, ensuring that sun safety remains a year-round priority for both residents and tourists alike. For a detailed look at the UV levels throughout the year, visit Phuket UV Index.

Maximum UV Index Levels in Phuket for January

The chart shows the monthly maximum UV Index (UVI) for Phuket 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 Phuket typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121415151413131414141211
Data source: Phuket 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.

January Sunshine in Phuket

January in Phuket, Thailand, welcomes travelers with an inviting average of 257 hours of sunshine, setting the stage for the year ahead. This month marks the beginning of a gradual increase in sunlight, with February experiencing a significant jump to 311 hours. As spring approaches, Phuket basks in an impressive 344 hours of sunshine in March, peaking at this time and enticing sun-seekers from around the globe. While April and May maintain a healthy glow, they still don't quite match March's brilliance, averaging 317 and 308 hours, respectively. The sun remains steadfast during the summer months, bouncing back to 316 hours in July and holding steady through August at 309 hours. Even as the year progresses into the autumn and winter months, Phuket enjoys a respectable amount of sunshine, averaging between 281 and 283 hours from October to December. This trend illustrates Phuket's vibrant climate, promising warmth and light for holidaymakers year-round.

Monthly Sunshine Duration in Phuket: January Highlighted

The January sunshine duration represents the total number of hours Phuket experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec257h311h344h317h308h296h316h309h282h281h283h309h
Data source: Phuket January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Phuket During January

In Phuket, Thailand, January offers a pleasant chance of sunny weather, with approximately 27% likelihood of sunshine. This makes it a favorable start to the year when compared to the sun’s chances in the ensuing months. As the dry season continues, February sees a significant spike to 47%, reflecting a peak for sun-seekers, while March maintains a healthy 40% chance. However, as spring approaches, the likelihood begins to diminish, dropping to 21% in April and further declining through the summer months, where it plummets to as low as 10% from August to October. With the onset of December showing an uptick to 38%, the trend suggests that while January holds its own in sunny prospects, the following months offer even better opportunities for sunshine, especially in February and March, before the chance of sun wanes dramatically.

Percentage of Sunny Days in January in Phuket

The chart illustrates the percentage of sunny days in Phuket throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Phuket experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%47%40%21%15%21%18%11%10%10%4%38%
Data source: Phuket January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Phuket in January

In Phuket, Thailand, January ushers in a delightful 11 hours of daylight, setting a tranquil tone for the year. This steady daylight continues through February, allowing for leisurely exploration of the island's stunning beaches and cultural sites. As March arrives, the days gradually lengthen to 12 hours, a trend that persists through the warmer months of April to September, offering plenty of sunshine for outdoor adventures. Interestingly, as the year winds down, daylight hours begin to taper off once more, returning to 11 hours in October, before maintaining this rhythm through the rest of the year. This cycle of daylight not only enhances Phuket's natural beauty but also creates a vibrant environment for both relaxation and exploration throughout the seasons.

Average Daylight Hours in Phuket for January

The chart illustrates the variation in daylight duration in Phuket throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 42m11h 51m12h 4m12h 17m12h 28m12h 33m12h 30m12h 21m12h 8m11h 55m11h 45m11h 39m
Data source: Phuket daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Phuket

January in Phuket, Thailand, ushers in a refreshing breeze with an average wind speed of 5.4 m/s (12 mph), setting a lively tone for the month. As the essence of winter fades into spring, the winds remain relatively consistent, hovering just slightly lower in February at 5.2 m/s. However, as the temperatures rise heading into March and April, the wind speed dips noticeably, with March averaging 3.9 m/s and April even lower at 3.7 m/s. This pattern reflects a transition into the warmer months, where by mid-year the winds generally pick up again, showcasing a peak in July at 5.2 m/s. Although various factors influence fluctuations throughout the year, the gentle caress of the January winds leaves a lasting impression, marking the season with a delightful balance of tranquility and energy perfect for outdoor adventures.

Average January Wind Speed in Phuket

The chart displays monthly wind speed patterns in Phuket, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.4 m/s5.23.93.73.64.45.24.84.24.43.64.7
Data source: Phuket January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Phuket Compares to Other Months

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

January's weather in Phuket features a minimum temperature of 24°C (75°F) and an average of 27°C (81°F), with a maximum reaching 30°C (86°F). The month experiences significant rainfall, totaling 111 mm (4.4 in) over 9 days, along with relatively high humidity at 76%. In contrast, February sees a slight increase in minimum temperature to 25°C (77°F) and a maximum of 31°C (88°F), while the average temperature remains stable at 27°C (82°F). Notably, rainfall decreases dramatically to just 13 mm (0.5 in) over 4 days, and humidity also drops slightly to 73%. For more detailed insights, check out Phuket weather in February.

In January, the weather in Phuket is characterized by slightly cooler temperatures, with a minimum of 24°C (75°F) and an average of 27°C (81°F). The month sees considerable precipitation, amounting to about 111 mm (4.4 in) over 9 days, contributing to a higher humidity level of 76%. In contrast, March experiences warmer conditions, with minimum temperatures rising to 26°C (78°F) and an average of 28°C (83°F). Precipitation is significantly lower, with only 38 mm (1.5 in) over 8 days and a slightly reduced humidity of 74%. For more detailed insights, check out this link: Phuket weather in March.

In January, the weather is characterized by warmer temperatures, with average highs of 30°C (86°F) and a relatively high humidity level of 76%. The month experiences about 111 mm (4.4 in) of precipitation over approximately 9 days, making it a time of moderate rainfall. By April, the temperatures rise slightly, with average highs reaching 31°C (87°F) and average lows at 25°C (78°F). However, April sees increased rainfall, totaling 166 mm (6.6 in) over a longer duration of 20 days, alongside a decrease in humidity to 71%. For more details on the weather patterns, check out Phuket weather in April.

In January, the weather in Phuket is warm and pleasant, with average temperatures hovering around 27°C (81°F) and maxing out at 30°C (86°F). However, it is also one of the wetter months, experiencing about 111 mm (4.4 in) of rainfall over around 9 days, coupled with a relatively high humidity of 76%. In contrast, May sees a slight increase in minimum temperatures, averaging 26°C (79°F) and peaking at 30°C (87°F). However, it is significantly wetter, with precipitation reaching 267 mm (10.5 in) over 27 days, resulting in a more humid climate of 72%. For a detailed overview of May's weather, you can check Phuket weather in May.

In January, the weather in Phuket features a pleasant average temperature of 27°C (81°F), with minimal variation between the minimum and maximum temperatures, which range from 24°C (75°F) to 30°C (86°F). The month experiences about 111 mm (4.4 in) of rainfall over 9 days, contributing to a relatively lower humidity level of 76%. In contrast, June brings slightly warmer conditions with an average temperature of 28°C (83°F), while the minimum and maximum temperatures remain the same as in January. However, June is significantly wetter, with a substantial 275 mm (10.8 in) of precipitation spread over 24 days, leading to a slight increase in humidity at 79%. For more detailed information, check out Phuket weather in June.

When comparing January and July weather, January experiences slightly cooler temperatures with an average of 27°C (81°F), while July sees a modest rise to an average of 28°C (83°F). Precipitation is significantly heavier in July, with 237 mm (9.3 in) falling over 21 days, compared to January's 111 mm (4.4 in) over just 9 days. Humidity levels are also slightly higher in July at 79% versus January's 76%. For more details on the conditions during this month, you can check Phuket weather in July.

In January, the weather in Phuket is characterized by slightly cooler temperatures, with average highs around 30°C (86°F) and a humidity level of 76%. The month sees approximately 111 mm (4.4 in) of rainfall spread over 9 days, making it a relatively drier period compared to later months. In contrast, August experiences warmer nights with a minimum temperature of 25°C (77°F) and similar maximums; however, the average temperature rises to 28°C (82°F). The humidity increases to 82%, and precipitation significantly heightens, totaling 265 mm (10.4 in) over 23 days, indicating a much wetter climate. For more details on what to expect, you can check Phuket weather in August.

January and September feature similar average temperatures in the region, with January experiencing a minimum of 24°C (75°F) and September slightly warmer at a minimum of 25°C (78°F). However, September is significantly wetter, receiving 309 mm (12.2 in) of precipitation over 25 days, compared to January's 111 mm (4.4 in) across just 9 days. Humidity levels also rise from 76% in January to 84% in September, contributing to a more humid atmosphere as the year progresses. For more detailed information, you can check Phuket weather in September.

In January, the weather in Phuket features warm temperatures, with a minimum of 24°C (75°F) and an average of 27°C (81°F), while the maximum hovers around 30°C (86°F). The month sees about 111 mm (4.4 in) of precipitation over 9 days, resulting in a humidity level of 76%. In contrast, October experiences slightly warmer minimum temperatures at 25°C (77°F), with similar averages and maximums. However, it is significantly wetter, with rainfall totaling 319 mm (12.6 in) over 27 days, leading to increased humidity at 83%. For more detailed information, check out Phuket weather in October.

In January, the weather remains warm with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 30°C (86°F), and an average of 27°C (81°F). However, it experiences less rainfall, with 111 mm (4.4 in) of precipitation over about 9 days and a humidity level of 76%. In contrast, November sees slightly higher minimum temperatures at 25°C (77°F) but shares an average of 27°C (81°F) and a maximum of 30°C (87°F). November is notably wetter, with a total precipitation of 199 mm (7.8 in) spread across 23 days and higher humidity at 84%. For more insights, you can check Phuket weather in November.

In January, the weather remains consistently warm, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 30°C (86°F) and an average of 27°C (81°F). The month experiences slightly less precipitation than December, totaling 111 mm (4.4 in) over 9 days, and the humidity level averages around 76%. In contrast, December sees similar temperature patterns, but with a bit higher precipitation of 124 mm (4.9 in) spread across 13 days, accompanied by higher humidity at 84%. For a more detailed look at the monthly climate, check out Phuket weather in December.

Compare Phuket's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Phuket

January in Phuket offers a comfortable escape with warm temperatures and just a hint of humidity, making it one of the most pleasant months to visit. Unlike the sweltering summer months, the average warmth allows for enjoyable outdoor activities without the overwhelming heat. While rainfall is present, with around nine days of precipitation, it’s significantly lower compared to the wet season, ensuring more sunshine and easier exploration. Those planning a trip can look forward to idyllic beach days and vibrant local festivities. For more details on the weather patterns throughout the year, explore Phuket Climate.