Last updated: August 27, 2025
In Phetchaburi, Thailand, January presents a delightful blend of warm temperatures and manageable humidity, making it an ideal time to explore the region. The maximum temperature reaches a comfortable 31°C (89°F), while the average settles at a pleasant 27°C (80°F), ensuring enjoyable outdoor activities. With a minimum temperature dipping to 19°C (66°F), the evenings offer a refreshing respite. Although the month experiences 31 mm (1.2 in) of rainfall over approximately 3 days, the overall humidity level of 58% contributes to a tropical atmosphere, perfect for travelers seeking both adventure and relaxation.
In Phetchaburi, Thailand, January marks the arrival of pleasantly cool temperatures, with minimums around 19°C (66°F) and average highs reaching up to 31°C (89°F). This month stands out as a transition period, where the weather remains enjoyable before the heat intensifies in the coming months. By February, temperatures begin to rise slightly, maintaining an average of 27°C (82°F), while reaching a maximum of 32°C (90°F). As spring approaches, March introduces warmer conditions, with lows of 24°C (75°F) and peaks at 33°C (91°F). The trend continues into April and May, where the heat becomes more pronounced, peaking at 36°C (96°F) in late May. Overall, January serves as an ideal time to explore Phetchaburi's stunning landscapes, with comfortable weather before the summer heat takes hold.
In January, Phetchaburi, Thailand experiences relatively low precipitation, recording only 31 mm (1.2 in) across just 3 days. This marks a stark contrast to the wetter months that follow, especially April and May, which see significant rainfall, escalating to 82 mm (3.2 in) and 106 mm (4.2 in), respectively. As the year progresses, rainfall intensifies, peaking in October with a considerable 241 mm (9.5 in) over 23 days. The trend highlights a distinct shift from the light drizzles of early January to the heavy monsoon-like conditions by the end of the year, reflecting a typical tropical climate where precipitation grows more abundant as temperatures rise.
In January, Phetchaburi, Thailand experiences a relatively moderate humidity level of 58%, setting the stage for a gradual rise as the year progresses. As the months unfold, humidity steadily increases, reaching 62% in March and jumping to a notable 69% by April. The real shift occurs as the rainy season approaches, with humidity surging to 79% in May and peaking at a sweltering 90% in August. Following this peak, the humidity begins to ease, descending to 83% in October and further tapering off to 66% by December. This progression highlights a distinct seasonal pattern, where the initial cool breezes of January give way to the sticky warmth of mid-year, culminating in relief as the monsoons subside.
In January, Phetchaburi, Thailand, experiences a very high UV Index of 10, which indicates a strong potential for skin damage with just 15 minutes of unprotected sun exposure. As the months progress, the UV Index escalates sharply, peaking at an extreme 14 from March through September, where the burn time drops to a mere 10 minutes. This trend highlights the increasing intensity of sun exposure as the dry season unfolds. By November and December, the UV Index reverts to a very high level of 10 and 9, respectively, allowing for slightly longer safe exposure times. Awareness of these fluctuations is crucial for residents and visitors alike; for more details, check the Phetchaburi UV Index.
UV Risk Categories
January in Phetchaburi, Thailand, welcomes visitors with 252 hours of radiant sunshine, setting a vibrant tone for the year. As the months progress, the sunlight increases, peaking in March with an impressive 338 hours. This trend showcases the region's balmy embrace, perfect for those seeking warmth and outdoor adventures. Although April and May maintain high sunshine levels at 324 and 323 hours respectively, a gradual decline begins in the summer months, illustrating the seasonal shift. Nevertheless, even in the cooler months, the sunshine remains consistent, with November and December offering 296 and 315 hours to round out the year. This captivating array of sunlight underscores Phetchaburi’s charm as a year-round destination for sun seekers.
In Phetchaburi, Thailand, January boasts a 59% chance of sunny weather, setting a promising tone for the early part of the year. This trend reflects a notable transition as the region moves from the cooler, less sunny months of December—where the likelihood of sun is similar at 61%—to February, which significantly elevates expectations with 76% chances of sunshine. As the year progresses into the hotter months, however, the likelihood of sunny days takes a dramatic dip, particularly in April and beyond, where it plunges to as low as 22% in April and further declines to a mere 8% by August. Consequently, if you're planning to enjoy the outdoors, January's relatively high sunshine probability makes it a lovely month to visit before the rainy season takes its toll.
In Phetchaburi, Thailand, January marks the start of a balanced daylight rhythm, offering 11 hours of sunlight that gradually ebbs and flows throughout the year. As we transition into February, daylight remains consistent at 11 hours, before shifting into a more abundant phase in March, where the hours increase to 12. This trend of extended daylight continues through the warmer months of April to August, providing residents and visitors alike with a generous 12 hours of sun-filled activities. However, as the year approaches its end, the daylight duration gently tapers back to 11 hours in October, November, and December, signaling the return of shorter days and cooler nights. This seasonal pattern illuminates the comforting predictability of daylight in Phetchaburi, enhancing both its natural beauty and cultural vibrancy throughout the year.
In January, Phetchaburi experiences a refreshing average wind speed of 3.3 m/s (7 mph), which sets a lively tone for the month. As the year unfolds, February sees a slight dip to 3.1 m/s while maintaining that pleasant breeze, followed by a modest increase in March to 3.9 m/s, introducing a hint of vigor that accompanies the arrival of spring. However, as the heat intensifies in April, winds fall to a calm 2.6 m/s. The trend continues with mild fluctuations throughout the following months, with wind speeds generally hovering around the 3 m/s mark, until a notable drop in September at 2.2 m/s invites a quieter atmosphere. Yet, the year concludes with an invigorating return in December, reaching 3.9 m/s, reminding everyone that nature's rhythm ebbs and flows. Overall, January marks the beginning of an engaging wind pattern that shifts dynamically throughout the year, inviting both tranquility and energy to this vibrant locale.
Weather in Phetchaburi varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Phetchaburi, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, temperatures in Phetchaburi range from a mild 19°C (66°F) at night to a warm 31°C (89°F) during the day, with an average temperature of 27°C (80°F). The month sees about 31 mm (1.2 in) of precipitation over an average of 3 days and maintains a relative humidity of 58%.
In contrast, February experiences slightly warmer temperatures, with nighttime lows of 23°C (73°F) and maximums reaching 32°C (90°F), while the average remains at 27°C (82°F). Precipitation decreases significantly to just 13 mm (0.5 in) over 2 days, and humidity levels are comparable at 59%.
For a detailed look at February weather in Phetchaburi, you can visit Phetchaburi weather in February.
In January, Phetchaburi experiences warm temperatures with a minimum of 19°C (66°F) and averages around 27°C (80°F), peaking at a maximum of 31°C (89°F). The month sees a moderate amount of precipitation, totaling 31 mm (1.2 in) over about 3 days, with humidity levels sitting at 58%. In contrast, March brings slightly warmer conditions, starting with a minimum of 24°C (75°F) and averaging 29°C (84°F), reaching highs of 33°C (91°F). Rainfall increases slightly to 36 mm (1.4 in) also across 3 days, accompanied by a rise in humidity to 62%. For more detailed weather information, check out Phetchaburi weather in March.
In January, the weather features milder temperatures, with an average of 27°C (80°F) and maximums reaching 31°C (89°F), coupled with relatively low humidity at 58%. Precipitation is minimal, with only 31 mm (1.2 in) over three days, making it a drier month. In contrast, April sees a significant increase in both temperature and humidity, with averages climbing to 30°C (85°F) and maximums soaring to 35°C (95°F). Rainfall is notably higher, with 82 mm (3.2 in) spread across 10 days, highlighted by increased humidity at 69%. For more detailed information about the weather in April, you can check Phetchaburi weather in April.
In January, the weather is relatively mild, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 31°C (89°F), and an average temperature of 27°C (80°F). The month experiences fairly low precipitation, totaling 31 mm (1.2 in) over just three days, accompanied by a humidity level of 58%. In contrast, May brings a marked increase in warmth, with temperatures starting at a minimum of 25°C (77°F) and peaking at 36°C (96°F), averaging around 30°C (86°F). Precipitation also rises significantly in May, with a total of 106 mm (4.2 in) spread over 17 days, and humidity levels climb to 79%. For a detailed overview of the weather in May, feel free to check Phetchaburi weather in May.
In January, the weather in Phetchaburi is pleasantly warm, with average temperatures ranging from a minimum of 19°C (66°F) to a maximum of 31°C (89°F). The month typically experiences low precipitation, with only 31 mm (1.2 in) spread over about three days and a humidity level of 58%. In contrast, June brings significantly warmer temperatures, with a minimum of 26°C (79°F) and highs reaching up to 35°C (95°F). This month is characterized by considerably more rainfall, totaling 71 mm (2.8 in) over approximately 15 days, and the humidity rises to a much higher 87%. For more details, check out Phetchaburi weather in June.
In January, Phetchaburi experiences mild temperatures, with a minimum of 19°C (66°F) and an average of 27°C (80°F), making it a comfortable month. Precipitation is relatively low, totaling 31 mm (1.2 in) over about three days, and humidity levels hover around 58%. In contrast, July brings much warmer temperatures, with a minimum of 26°C (79°F) and an average of 29°C (85°F), along with frequent rain, resulting in 89 mm (3.5 in) of precipitation spread over 19 days and higher humidity at 89%. For more details on the weather during this month, check out Phetchaburi weather in July.
In January, Phetchaburi experiences relatively mild weather, with average temperatures ranging from 19°C (66°F) to a maximum of 31°C (89°F) and only 31 mm (1.2 in) of precipitation spread over just 3 days. The humidity is moderate at 58%, making it a comfortable time to be outdoors. In contrast, August brings warmer temperatures, with a minimum of 25°C (78°F) and a peak of 34°C (94°F), along with significantly higher rainfall totaling 105 mm (4.1 in) over 21 days. The humidity also rises dramatically to 90%, creating a much more humid atmosphere. For more detailed information, visit Phetchaburi weather in August.
In January, the weather is characterized by warm temperatures that range from a minimum of 19°C (66°F) to a maximum of 31°C (89°F), with an average temperature of 27°C (80°F). The month experiences relatively low precipitation, totaling only 31 mm (1.2 in) over just 3 days, and the humidity levels are moderate at 58%.
In contrast, September brings a notable increase in both temperature and moisture. The minimum temperature rises to 25°C (77°F), with a maximum of 35°C (94°F) and an average temperature of 28°C (83°F). However, it also sees significantly higher rainfall, accumulating 164 mm (6.5 in) over 22 days, coupled with elevated humidity levels at 87%.
For a more detailed understanding of the weather patterns, check out Phetchaburi weather in September.
In January, the weather is generally warm with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 31°C (89°F), and an average temperature of 27°C (80°F). This month experiences relatively low precipitation, with only 31 mm (1.2 in) falling over about three days and humidity at a moderate 58%. In contrast, October sees slightly warmer temperatures, with lows of 24°C (76°F) and highs reaching 33°C (91°F), while the average settles at 28°C (83°F). October is significantly wetter, accumulating 241 mm (9.5 in) of rain over approximately 23 days and a higher humidity level of 83%. For more detailed information, you can check out Phetchaburi weather in October.
January and November present distinct weather patterns. In January, temperatures range from a minimum of 19°C (66°F) to a maximum of 31°C (89°F), with an average of 27°C (80°F). This month sees relatively low precipitation of 31 mm (1.2 in) over just 3 days, and humidity levels are moderate at 58%. In contrast, November tends to be warmer and more humid, with temperatures ranging from a minimum of 23°C (73°F) to a maximum of 32°C (90°F), averaging 28°C (82°F). Notably, November experiences significantly higher precipitation at 94 mm (3.7 in) across 12 days, resulting in a humidity level of 77%. This increase in rainfall and humidity contrasts sharply with the drier conditions of January. For more detailed information about the weather during this month, check out Phetchaburi weather in November.
In comparing the weather between January and December, we observe only slight variations in temperature and humidity. Both months feature a minimum temperature of 19°C (66°F) and an average temperature of 27°C (80°F). However, January has a maximum temperature of 31°C (89°F), while December reaches a slightly higher peak at 32°C (89°F). Precipitation levels are also comparable, with January receiving 31 mm (1.2 in) over three days, compared to December's 25 mm (1.0 in) across the same number of days. Notably, December exhibits a higher humidity level at 66%, versus January's 58%. For more detailed insights into December weather, you can check Phetchaburi weather in December.
As January sets in, Phetchaburi unveils a delightful transformation, characterized by mild temperatures and reduced humidity compared to the sweltering months that precede it. With an average temp hovering around a comfortable 27°C (80°F), this month is perfect for outdoor exploration without the oppressive heat. Though rainfall is minimal, with only a few days of drizzle, the lush surroundings remain vibrant. This refreshing climate invites visitors to enjoy Phetchaburi's stunning landscapes and rich culture, making it an opportune time for travel. For a detailed look at the weather patterns throughout the year, check out the comprehensive guide on Phetchaburi Climate.