January Weather in Phaya Thai, Thailand

Last updated: August 27, 2025

In January, Phaya Thai, Thailand, experiences a warm and inviting climate, with maximum temperatures reaching up to 35°C (94°F) and an average of 27°C (81°F). The cooler nights can dip to a refreshing 16°C (61°F), making it an ideal time for outdoor activities. Although precipitation is minimal, with only 29 mm (1.1 in) over about 3 days, the humidity remains comfortable at 59%, enhancing the pleasant atmosphere. This blend of warmth and light rainfall creates the perfect backdrop for exploring the vibrant culture and stunning landscapes of Phaya Thai.

January Temperature in Phaya Thai

In January, Phaya Thai welcomes a delightful range of temperatures, with lows around 16°C (61°F) and peaks reaching up to 35°C (94°F). This month is characterized by an enjoyable average of 27°C (81°F), making it one of the cooler months before the heat intensifies. As February rolls in, the temperatures begin to climb slightly, with minimums at 19°C (66°F) and averages moving up to 28°C (82°F), while the maximum remains steady at 35°C (96°F). The trend continues into March, where the warmth becomes more pronounced, recording minimums of 22°C (72°F) and averages of 30°C (86°F). The scorching summer months of April and May see the highest temperatures, peaking at 38°C (100°F) and soaring to a staggering 40°C (103°F) respectively. As the year progresses into the rainy season from June through September, the temperatures stabilize but remain warm, typically averaging around 29°C (85°F) despite occasional drops in maximum readings. Overall, January's pleasant climate stands in stark contrast to the escalating heat of the following months, setting the stage for the tropical conditions that define Phaya Thai's year.

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

The chart illustrates January temperature patterns in Phaya Thai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Phaya Thai, 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).
JanFebMarAprMayJunJulAugSepOctNovDec808285868686858584838280
Data source: Temperature data for Phaya Thai 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 Phaya Thai

In January, Phaya Thai experiences relatively mild precipitation, recording 29 mm (1.1 in) over just 3 days. This sets the stage for a gradual increase in rainfall as the year progresses; February sees a drop to 14 mm (0.5 in), while March begins to ramp up with 44 mm (1.7 in). The pattern clearly indicates a sharp rise heading into the summer months, peaking in September and October with substantial rainfall of 245 mm (9.6 in) and 250 mm (9.9 in), respectively. As the year unfolds, the transitions from dry to wet seasons become pronounced, showcasing a clear trend of increasing precipitation that culminates in the peak rainy season. Overall, January's modest rainfall offers a gentle introduction to the wetter months ahead, highlighting the dynamic climate of this vibrant region.

January Precipitation Trends in Phaya Thai

The chart displays monthly precipitation patterns in Phaya 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 Phaya Thai, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec2914441071421121591632452506124
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Phaya Thai

In January, Phaya Thai experiences a comfortable humidity level of 59%, setting the stage for the cooler, drier days of the early year. As the months progress, this figure gradually increases, with February dipping slightly to 58% before climbing to 61% in March. The transition into the sweltering summer months begins in April, where humidity leaps to 70%, paving the way for the more humid conditions that dominate from May to August. During this peak period, humidity reaches a substantial 88% in August, reflecting the tropical climate's defining characteristics. As the year winds down, September sees a slight decline to 87%, followed by a gradual decrease through autumn, bringing December's levels back down to a more comfortable 70%. Overall, January stands as a refreshing entry point, contrasted by the thick humidity that envelops the region as it moves deeper into the year.

January Average Humidity in Phaya Thai

This chart illustrates the average monthly humidity levels in Phaya 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 Phaya Thai is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec59%58%61%70%80%85%86%88%87%83%78%70%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Phaya Thai

In January, Phaya Thai experiences a UV Index of 10, indicating a very high risk of harm from unprotected sun exposure, with a burn time of just 15 minutes. As the months progress, the UV Index climbs dramatically, peaking at 14 in March, May, July, and August, all categorized as extreme exposure, where just 10 minutes can lead to skin damage. This trend of escalating UV levels continues through to October, before tapering off in the cooler months of November and December, where the Index returns to 9 and 8, respectively, yet still remains in the very high category. With these significant fluctuations and consistently high UV ratings throughout the year, it’s crucial for residents and visitors to remain vigilant and take protective measures against sun exposure. For more detailed insights, visit Phaya Thai UV Index.

Maximum UV Index Levels in Phaya Thai for January

The chart shows the monthly maximum UV Index (UVI) for Phaya 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 Phaya Thai typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1012141314131414131298
Data source: Phaya 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.

January Sunshine in Phaya Thai

In Phaya Thai, Thailand, January welcomes sunshine with an impressive 251 hours of radiant daylight, laying the groundwork for a vibrant year ahead. As the months progress, the sun shines even brighter, peaking in March with a remarkable 336 hours of sunlight. This seasonal increase reflects not only the transition into hotter days but also invites outdoor activities and a lively atmosphere. April and May maintain a solid presence of sunshine, with hours barely dipping below 321 hours. As the year unfolds, daylight begins to wane slightly, with July to September showcasing a gradual decline, hovering between 280 to 290 hours. However, by the end of the year, Phaya Thai basks in the warmth of 316 hours in December, ensuring that the charm of the sun remains a cherished aspect of life in this vibrant locale throughout the seasons.

Monthly Sunshine Duration in Phaya Thai: January Highlighted

The January sunshine duration represents the total number of hours Phaya Thai 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.
JanFebMarAprMayJunJulAugSepOctNovDec251h299h336h322h321h302h290h280h268h287h294h316h
Data source: Phaya Thai January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Phaya Thai During January

In January, Phaya Thai enjoys a 58% chance of sunny weather, creating a delightful atmosphere for both locals and visitors. This month stands out as one of the more favorable times of the year, especially when compared to the sweltering heat and humidity of April, which plummets to a mere 18% chance of sunshine. Interestingly, January's sun-filled days set the tone for the following months, with February peaking at 76%, before tapering off as the year progresses. As the season shifts toward mid-year, the likelihood of sunny days dramatically decreases, hitting lows of 9% in August and 11% in July. Thus, January not only serves as a bright start to the year but also precedes the sunnier spells of February, making it an appealing time to experience the charm of Thailand before the heat settles in.

Percentage of Sunny Days in January in Phaya Thai

The chart illustrates the percentage of sunny days in Phaya Thai 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 Phaya Thai experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec58%76%57%18%33%17%11%9%10%14%29%63%
Data source: Phaya Thai January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Phaya Thai in January

In Phaya Thai, Thailand, January offers a consistent 11 hours of daylight, a pattern that continues into February. As spring approaches in March, daylight begins to extend, reaching 12 hours and maintaining this duration through the summer months of June and August. This steady increase in daylight not only enhances the vibrant tropical atmosphere but also encourages outdoor activities. As October arrives, the daylight begins to recede back to 11 hours, reestablishing the rhythm of the year as the region transitions into the cooler months of November and December. This cyclical pattern of daylight provides a beautiful backdrop to the diverse experiences of living in this lively locale.

Average Daylight Hours in Phaya Thai for January

The chart illustrates the variation in daylight duration in Phaya Thai throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 24m11h 40m12h 2m12h 25m12h 45m12h 54m12h 49m12h 33m12h 11m11h 48m11h 28m11h 19m
Data source: Phaya Thai daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Phaya Thai

In January, Phaya Thai experiences a gentle average wind speed of 2.3 m/s (5 mph), which sets the tone for the month as a time of calm and clear skies. As the year progresses into February, the winds pick up slightly, reaching 2.4 m/s. The spring months see a noticeable increase, with March and June both soaring to 3.0 m/s, indicating a refreshing breeze that invigorates the landscape. However, the warmth of April brings a dip to 1.9 m/s, creating a brief lull before a resurgence in the summer months with July and August maintaining steady winds around 2.7 m/s and 2.6 m/s respectively. As the year winds down, the winds mellow again, illustrated by a return to 2.0 m/s in both September and October, concluding with a slight rise in November and December. This consistent yet variable wind pattern not only shapes the weather but also enhances the unique beauty of Phaya Thai throughout the year.

Average January Wind Speed in Phaya Thai

The chart displays monthly wind speed patterns in Phaya Thai, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.3 m/s2.43.01.92.43.02.72.62.02.02.22.6
Data source: Phaya Thai January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Phaya Thai Compares to Other Months

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

In comparison, January's weather features slightly cooler temperatures, with a minimum of 16°C (61°F) and an average of 27°C (81°F), while February experiences a mild increase, with a minimum temperature of 19°C (66°F) and an average of 28°C (82°F). Both months reach a maximum of 35°C (94°F in January and 96°F in February), but February has notably less precipitation at 14 mm (0.5 in), compared to January's 29 mm (1.1 in), although both months see rain on three days. Humidity levels remain relatively stable, with January at 59% and February slightly lower at 58%. For more detailed information about February weather, check Phaya Thai weather in February.

In January, temperatures in Phaya Thai range from a minimum of 16°C (61°F) to a maximum of 35°C (94°F), with an average temperature of 27°C (81°F). The month sees relatively low precipitation, totaling 29 mm (1.1 in) across about three rainy days and maintaining a humidity level of 59%. In contrast, March experiences warmer temperatures, with a minimum of 22°C (72°F) and a maximum of 37°C (99°F), averaging 30°C (86°F). Precipitation increases to 44 mm (1.7 in) over five days, along with a slight rise in humidity to 61%. For more details about March weather conditions, you can check Phaya Thai weather in March.

January and April present distinct weather patterns. In January, the temperatures range from a minimum of 16°C (61°F) to a maximum of 35°C (94°F), with an average of 27°C (81°F). The month sees a relatively low precipitation of 29 mm (1.1 in) over just three days, accompanied by a humidity level of 59%. In contrast, April experiences warmer temperatures, with a minimum of 21°C (70°F), an average of 30°C (87°F), and a peak of 38°C (100°F). Precipitation increases significantly to 107 mm (4.2 in) across 12 days, leading to higher humidity levels at 70%. For more detailed information on the weather during this month, visit Phaya Thai weather in April.

In January, the weather is warm with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 35°C (94°F), and relatively low humidity at 59%. Precipitation is minimal, with only 29 mm (1.1 in), spread over just three days. In contrast, May experiences significantly higher temperatures, with averages from a minimum of 23°C (74°F) to a scorching maximum of 40°C (103°F). The humidity also rises to 80%, accompanied by heavy rainfall totaling 142 mm (5.6 in) over 19 days. This shift makes May a much wetter and more humid month compared to January. For more detailed insights about the weather in May, you can check Phaya Thai weather in May.

In January, the weather is relatively mild, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 35°C (94°F) and an average of 27°C (81°F). The month sees low precipitation levels of only 29 mm (1.1 in) over just three days, along with a humidity of 59%. In contrast, June experiences significantly warmer conditions, with a minimum temperature of 25°C (78°F) and a maximum of 37°C (99°F), resulting in an average of 30°C (86°F). Rainfall increases dramatically to 112 mm (4.4 in) spread across 22 days, accompanied by much higher humidity at 85%. For more detailed information about June weather, check Phaya Thai weather in June.

When comparing the weather in January and July, there is a notable contrast in temperatures and precipitation. January experiences milder warmth with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 35°C (94°F) and only 29 mm (1.1 in) of rainfall over just three days. On the other hand, July sees higher minimum temperatures, starting at 25°C (78°F) and peaking at 37°C (99°F), accompanied by significantly increased rainfall of 159 mm (6.2 in) across 26 days. Additionally, July is characterized by higher humidity levels at 86%, compared to January’s more comfortable 59%. For a detailed overview of July's climate, you can visit Phaya Thai weather in July.

In January, the weather is relatively pleasant, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 35°C (94°F) and an average of 27°C (81°F). The month sees limited rainfall, with just 29 mm (1.1 in) over about 3 days and a humidity level of 59%. In contrast, August brings much warmer conditions, with temperatures starting at a minimum of 25°C (77°F), averaging 29°C (85°F), and peaking at 37°C (99°F). This month is significantly wetter, experiencing 163 mm (6.4 in) of precipitation over approximately 23 days and a higher humidity level of 88%. For a closer look at August weather, you can visit Phaya Thai weather in August.

In January, the weather is generally warm with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 35°C (94°F), and an average temperature of 27°C (81°F). The month experiences relatively low precipitation, with only 29 mm (1.1 in) falling over three days, coupled with a humidity level of 59%. In contrast, September is significantly warmer and more humid, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 36°C (97°F), and an average of 29°C (84°F). However, it is much wetter, with a substantial 245 mm (9.6 in) of rain over 24 days, leading to a higher humidity level of 87%. For a detailed look at September's weather conditions, you can refer to Phaya Thai weather in September.

When comparing the weather in January and October, significant differences emerge. January enjoys milder temperatures, with a minimum of 16°C (61°F) and an average of 27°C (81°F), while October features warmer nights, starting at a minimum of 23°C (74°F) and averaging 29°C (84°F). The overall maximum temperatures in both months are similar, peaking at around 35°C (94°F in January and 96°F in October). However, October sees a dramatic increase in precipitation, with 250 mm (9.9 in) over 21 days, compared to just 29 mm (1.1 in) over 3 days in January. This increase contributes to higher humidity levels in October, reaching 83% compared to January's 59%. For more details, you can check Phaya Thai weather in October.

In January, temperatures in Phaya Thai range from a minimum of 16°C (61°F) to a maximum of 35°C (94°F), with an average of 27°C (81°F) and relatively low humidity at 59%. The month experiences minimal rainfall, totaling just 29 mm (1.1 in) over about 3 days. In contrast, November sees slightly higher temperatures, with a minimum of 21°C (70°F) and an average of 28°C (83°F), while still reaching highs of 35°C (95°F). However, November is notably wetter, receiving 61 mm (2.4 in) of precipitation over approximately 9 days and experiencing increased humidity at 78%. For a more detailed look at November weather, visit Phaya Thai weather in November.

In comparing the weather between January and December, it is notable that both months experience similar average temperatures, hovering around 27°C (81°F). January sees a slightly higher maximum temperature of 35°C (94°F), whereas December has a maximum of 35°C (95°F). However, January is characterized by lower humidity at 59%, compared to December's 70%, making it feel less sticky. Precipitation is also a bit more frequent in January with 29 mm (1.1 in) over 3 days, while December sees 24 mm (0.9 in) over 2 days. For a detailed look at December weather in this region, you can visit Phaya Thai weather in December.

Compare Phaya Thai's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Phaya Thai

January in Phaya Thai offers a refreshing contrast to the sweltering summer months that follow. With average temperatures around 27°C (81°F), it provides a comfortable climate for both locals and tourists alike. While maximum highs can climb to 35°C (94°F), the cooler evenings offer a reprieve with lows dipping to 16°C (61°F). Additionally, January experiences relatively low precipitation, with just a few days of rain and an average humidity of 59%, making it a delightful time to explore the city. For further insights into the climate trends throughout the year, check out Phaya Thai Climate.