Last updated: August 21, 2025
January in Petaling Jaya, Malaysia offers a warm tropical climate characterized by a maximum temperature reaching 34°C (94°F), comfortably balanced by an average of 27°C (82°F) and a minimum of 22°C (72°F). With high humidity levels at 84%, the air feels muggy, typical of equatorial weather. Rainfall is a notable feature this month, accumulating to 144 mm (5.7 in) over 18 days, creating a lush environment but also requiring readiness for sudden downpours. This blend of warmth and moisture provides a vivid backdrop for residents and visitors alike.
In Petaling Jaya during January, temperatures begin to set the tone for the year, with minimums around 22°C (72°F) and averages hovering at 27°C (82°F), peaking at a comfortable 34°C (94°F). This pattern indicates the city's tropical climate, where warmth is a consistent theme throughout the month. As January transitions into February, the heat intensifies slightly, with average temperatures climbing to 28°C (83°F) and maximums occasionally reaching 36°C (97°F). The trend continues into the subsequent months, maintaining warm conditions, particularly as maximum temperatures stabilize near 35-36°C (95-97°F) from February through April. Despite the slight fluctuations in monthly averages, the consistent warmth and occasional peaks underscore Petaling Jaya’s climate, encouraging both locals and visitors to embrace outdoor activities all year round.
January in Petaling Jaya, Malaysia, heralds the start of the new year with a notable precipitation total of 144 mm (5.7 in) spread over 18 rainy days. This marks the onset of the wet season, setting the stage for a steady increase in rainfall as the months progress. February sees a decline to 94 mm (3.7 in), with fewer rainy days, before precipitation climbs again in March to 161 mm (6.3 in), closely followed by an even more substantial increase in April at 212 mm (8.3 in). This trend continues through May, highlighting a pattern of increasing rainfall leading to November, which records the wettest month at 292 mm (11.5 in). While January starts relatively mild, it clearly indicates the impending transition to heavier rains, embodying the climatic pulse of the region through the early part of the year.
January in Petaling Jaya, Malaysia, is characterized by high humidity, averaging 84%. This marks the beginning of a trend where humidity tends to rise as the months progress. Following January, humidity levels remain relatively stable, dipping slightly in February and March to 77% before climbing back to 80% in April. The onset of the mid-year months sees an upward trajectory, with humidity reaching peaks of 90% from August through October. This seasonal pattern reflects the region's tropical climate, where the air remains notably damp, particularly in the latter half of the year. Overall, January sets the stage for increasingly humid conditions, typical of Petaling Jaya's vibrant weather cycle.
In January, Petaling Jaya experiences a UV Index of 13, categorized as extreme, indicating that even short exposure can lead to skin damage in just 10 minutes. This pattern of intense solar radiation continues throughout the year, with February and March recording even higher indices of 15, maintaining the extreme exposure category. As the months progress, the UV Index slightly decreases, hovering between 12 and 14 from June to November, yet the burn time remains consistent at 10 minutes across all months. This trend underscores the importance of sun protection year-round. For those looking to stay informed about UV levels, exploring the full range of data can be beneficial. More details are available at Petaling Jaya UV Index.
UV Risk Categories
In January, Petaling Jaya basks in an inviting 238 hours of sunshine, setting a warm tone for the year. As the months progress, the city gradually welcomes increasing daylight, with February experiencing a notable rise to 301 hours. This upward trend continues through March, peaking at an impressive 325 hours, signaling the arrival of warmer weather. However, as April rolls in, the hours dip slightly to 296, followed by a more stable pattern with subsequent months averaging around 290 to 310 hours of sunshine. This consistency in daylight throughout the mid-year suggests a delightful balance for both residents and visitors, while November and December gracefully conclude the year with softer light, reminding us of the cyclical nature of Petaling Jaya’s radiant climate.
In January, Petaling Jaya experiences a modest 7% chance of sunny weather, making it one of the cloudier months of the year. This trend of limited sunshine continues as the year begins, starkly contrasting with the following month, February, which sees a remarkable jump to 26%, heralding the onset of sunnier days. This increase in sunny weather is part of a broader seasonal shift, as March and April also maintain relatively healthy percentages of 22% and 17%, respectively. However, as we progress toward mid-year, the chances of sunlight gradually decline again, with July and August offering only 15% and 14% chance of sun, respectively. Thus, while January may be subdued in sunlight, the promise of brighter skies emerges as the months roll on, inviting a more radiant atmosphere in Petaling Jaya as the year unfolds.
In Petaling Jaya, Malaysia, January marks the beginning of a gradual shift in daylight hours, with the city basking in 11 hours of sunlight. As the months progress into February, daylight extends to 12 hours, a trend that carries through to October, creating a consistent period of ample sunlight. This stability offers an inviting atmosphere for outdoor activities and daily excursions. However, as the year winds down, daylight dips back to 11 hours in both November and December, signaling the onset of shorter days. Overall, the daylight duration remains mostly stable during the mid-year months, providing residents and visitors a delightful blend of light and shadow throughout the year.
In Petaling Jaya during the month of January, the average wind speed hovers at a gentle 1.5 m/s (3 mph), setting the tone for a relatively calm start to the year. As we transition into February, a slight uptick to 2.0 m/s (4 mph) marks the beginning of a trend where the wind progressively picks up in the following months, peaking at 2.3 m/s (5 mph) in October. This gradual increase reflects the shifting seasonal patterns, with April and July also showing notable average speeds of 1.8 m/s and 2.1 m/s, respectively. By the year's end, the winds begin to settle once again, culminating in December's 1.7 m/s, hinting at a cyclical rhythm in the climate. Overall, while January remains one of the calmer months, the gradual ascent in wind speed throughout the year embodies the dynamic nature of Petaling Jaya's tropical weather.
Weather in Petaling Jaya varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Petaling Jaya, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, temperatures in Petaling Jaya range from a minimum of 22°C (72°F) to a maximum of 34°C (94°F), with an average temperature of 27°C (82°F). The month experiences significant rainfall, accumulating 144 mm (5.7 in) over 18 days, along with high humidity levels at 84%.
In contrast, February sees a slight increase in average temperature to 28°C (83°F), with maximum highs reaching up to 36°C (97°F). Precipitation decreases to 94 mm (3.7 in) over 15 days, and humidity levels drop to 77%. For a closer look at February's weather patterns, you can visit Petaling Jaya weather in February.
In comparing the weather between January and March, both months exhibit warm temperatures, but March tends to be slightly hotter overall. In January, the minimum temperature starts at 22°C (72°F) with an average of 27°C (82°F) and a maximum reaching 34°C (94°F). In contrast, March features a higher minimum temperature of 24°C (75°F) and an average of 28°C (84°F), peaking at 36°C (98°F). Precipitation is also a notable factor, with January receiving 144 mm (5.7 in) over 18 days, while March sees an increase to 161 mm (6.3 in) spread over 24 days. Additionally, humidity in January is higher at 84%, compared to 77% in March. For more detailed insights on the weather in March, check out Petaling Jaya weather in March.
In January, the weather features a minimum temperature of 22°C (72°F) and an average of 27°C (82°F), with a maximum reaching 34°C (94°F). The month experiences significant rainfall, totaling 144 mm (5.7 in) over 18 days, accompanied by high humidity levels at 84%. In contrast, April sees slightly warmer conditions, with minimum temperatures of 24°C (76°F), an average of 29°C (84°F), and a peak of 36°C (97°F). Rainfall increases to 212 mm (8.3 in) spread across 26 days, while humidity decreases slightly to 80%. For a more detailed look at April's weather patterns, check out Petaling Jaya weather in April.
In comparing the weather between January and May, January tends to have slightly cooler temperatures with a minimum of 22°C (72°F) and an average of 27°C (82°F), while May experiences a minimum of 23°C (74°F) and an average of 29°C (84°F). May also sees a higher maximum temperature of 35°C (95°F), compared to January's max of 34°C (94°F). Precipitation is more prevalent in May, with 184 mm (7.2 in) of rain over 26 days, compared to January's 144 mm (5.7 in) over 18 days. Humidity remains relatively high in both months, with January at 84% and May slightly higher at 85%. For more details on specific weather patterns, check out Petaling Jaya weather in May.
In January, the weather is typically warm, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 34°C (94°F), accompanied by an average temperature of 27°C (82°F). During this month, there is significant precipitation, amounting to 144 mm (5.7 in) over 18 days, and humidity levels hover around 84%.
By June, temperatures rise slightly, with minimums of 24°C (75°F) and maximums reaching up to 35°C (96°F), leading to an average temperature of 29°C (84°F). The precipitation also decreases to 114 mm (4.5 in), still spread over 18 days, though humidity rises a bit to 87%. For more details, you can check Petaling Jaya weather in June. Overall, while both months feature high temperatures and humidity, June tends to be slightly warmer with less rainfall compared to January.
January and July in Petaling Jaya exhibit notable differences in weather patterns. In January, temperatures range from a minimum of 22°C (72°F) to a maximum of 34°C (94°F), with an average of 27°C (82°F). The month sees significant rainfall, totaling 144 mm (5.7 in) over 18 days, and the humidity level is quite high at 84%. In contrast, July is slightly warmer, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 35°C (96°F) and an average of 29°C (84°F). Precipitation decreases to 96 mm (3.8 in) over 17 days, while humidity rises marginally to 87%. For more details, check out the Petaling Jaya weather in July.
January and August exhibit noticeable differences in weather patterns. January experiences slightly cooler temperatures, with averages ranging from a minimum of 22°C (72°F) to a maximum of 34°C (94°F), while August sees warmer conditions with a minimum of 24°C (75°F) and a maximum of 35°C (96°F). Precipitation is higher in January, totaling 144 mm (5.7 in) over 18 days compared to August’s 112 mm (4.4 in), which also spans 18 days of rain. Additionally, humidity levels reach 84% in January, compared to a higher 90% in August, making the latter month feel more humid. For more detailed information, you can refer to Petaling Jaya weather in August.
In January, the weather tends to be warm with minimum temperatures around 22°C (72°F) and average highs reaching up to 34°C (94°F). The month experiences significant rainfall, totaling 144 mm (5.7 in) over approximately 18 days, accompanied by a high humidity level of 84%.
In contrast, September features slightly warmer temperatures, with minimums at 24°C (75°F) and maximums peaking at 36°C (96°F). Precipitation increases slightly to 153 mm (6.0 in) over around 22 rainy days, and humidity rises to 90%. Overall, September is characterized by warmer temperatures and increased precipitation compared to January. For more details, you can check Petaling Jaya weather in September.
In comparing the weather of January and October, January tends to have slightly lower temperatures, with minimums around 22°C (72°F) and a maximum of 34°C (94°F), while October sees a minimum of 24°C (75°F) and can peak at 36°C (98°F). Both months experience significant rainfall, with January receiving about 144 mm (5.7 in) across 18 days compared to October’s 173 mm (6.8 in) over 22 days. Humidity levels are also higher in October, reaching 89% compared to January's 84%. For further insights into the weather during this time, you can refer to Petaling Jaya weather in October.
In comparing the weather between January and November, both months experience warm temperatures, but November tends to be slightly warmer overall. January has a minimum temperature of 22°C (72°F) and averages around 27°C (82°F), while November sees a minimum of 24°C (75°F) and an average of 28°C (82°F). Additionally, November is notably wetter, with 292 mm (11.5 in) of precipitation over 28 days, compared to January's 144 mm (5.7 in) over 18 days. Humidity levels are also higher in November, reaching 89%, compared to January's 84%. For more detailed information, you can check Petaling Jaya weather in November.
In comparing the weather between January and December, both months maintain a similar average temperature of 27°C (82°F), with maximums reaching up to 34°C (94°F). However, January tends to be slightly cooler with minimum temperatures averaging at 22°C (72°F), while December has a higher minimum temperature of 24°C (75°F). Rainfall is notably more prominent in December, with 244 mm (9.6 in) of precipitation over 26 days, compared to January's 144 mm (5.7 in) over 18 days. Additionally, December experiences a higher humidity level at 90%, compared to January's 84%. For more details, you can check out Petaling Jaya weather in December.
As January unfolds in Petaling Jaya, the weather often feels a blend of warmth and humidity, creating a unique tropical atmosphere. With temperatures peaking around 34°C and an average of 27°C, the month is marked by a significant amount of rainfall—144 mm spread over 18 days. This sets January apart from the drier months, as the high humidity of 84% contributes to a noticeably muggy environment. While residents might expect the hot tropical climate year-round, January's marked precipitation and cloud cover provide a refreshing contrast to the sunnier, drier conditions typical of other months. For further insights into the climate patterns that shape this vibrant city, visit Petaling Jaya Climate.