Last updated: August 21, 2025
Experience the vibrant September weather in Petaling Jaya, Malaysia, where temperatures soar to a maximum of 36°C (96°F) and average around a comfortable 28°C (83°F). Nights cool down to a minimum of 24°C (75°F), offering a pleasant respite. This month, you can expect a significant amount of rainfall, with 153 mm (6.0 in) of precipitation spread over 22 days, creating a lush, green landscape. Humidity levels remain high at 90%, adding to the tropical ambiance. Whether you're planning outdoor adventures or cozy indoor activities, September in Petaling Jaya promises a blend of heat and refreshing showers.
In September, Petaling Jaya experiences a warm tropical climate, with temperatures typically ranging from a minimum of 24°C (75°F) to a maximum of 36°C (96°F). The average temperature hovers around 28°C (83°F), signaling that the summer heat continues to linger. Interestingly, while the highs can peak to 36°C, the average and minimum temperatures indicate a slight cooling trend compared to the peak summer months of July and August, which feature similar maximums but with consistently higher averages. As the month progresses, residents may begin to notice a gradual transition into the wetter season, where humidity levels rise, setting the scene for the lush greenery that Malaysia is known for.
In September, Petaling Jaya experiences an average precipitation of 153 mm (6.0 in) over 22 days, marking a notable increase from the drier months of July and August. This consistent rainsets the stage for a transition into the wetter period of the year, as the city moves towards October and November, which record even higher rainfall. Interestingly, September's precipitation is slightly less than the 161 mm (6.3 in) seen in March, but it serves as a reminder of the region's tropical climate, where moisture prevails throughout much of the year. The trend of increased rainfall underscores the monsoon influence, indicating that residents should be prepared for frequent showers and potential humidity as they welcome the vibrant lushness that follows.
In Petaling Jaya, Malaysia, September marks the culmination of a gradual increase in humidity that begins in the earlier months of the year. Starting at 84% in January, the humidity dips slightly to 77% in February and March, before beginning a steady ascent through the spring and summer. By September, the humidity peaks at 90%, mirroring the levels seen in August and December. This consistent high humidity, particularly during the latter half of the year, creates a tropical atmosphere that characterizes the region's climate, making it both lush and vibrant as the monsoon season progresses. As October rolls in, the humidity remains elevated at 89%, suggesting that the balmy conditions are here to stay for a while longer, enveloping the city in a warm, moist embrace.
In September, Petaling Jaya experiences a notable UV Index of 14, maintaining its classification in the extreme exposure category with a burn time of just 10 minutes. This trend mirrors the intensity observed in the preceding months, particularly April and October, which also boast a UV Index of 14. The consistent pattern of extreme UV levels from January through September highlights the need for vigilant sun protection, particularly as the region approaches the end of its annual sunniest season. As such, residents and visitors alike should remain aware of their sun exposure and take necessary precautions. For more information, visit Petaling Jaya UV Index.
UV Risk Categories
September in Petaling Jaya, Malaysia, brings a delightful 291 hours of sunshine, marking a gentle dip from the peak brightness of March with its impressive 325 hours. This month’s sunlight is part of a broader trend of gradually diminishing daylight as the year progresses; after the vibrant summer months of July and August, where the sun generously shone for 311 and 305 hours respectively, September offers a more subdued yet still pleasant atmosphere. As the seasons change, residents can relish the lingering warmth while anticipating the slightly cooler days ahead in October, which records 283 hours of sunshine. The overall trend showcases a climate rich in bright days, inviting both locals and visitors to enjoy the lush landscapes and vibrant culture of this bustling Malaysian city.
In Petaling Jaya, Malaysia, the likelihood of sunny weather in September hovers around 16%, a figure that aligns closely with the summer months of May through August, which range from 14% to 18%. This suggests a modest but consistent chance of sunshine as the year progresses towards the end of the dry season. While September doesn’t stand out as particularly sunny compared to earlier months, it does manage to maintain a better outlook than the later months of October and November, which drop to 13% and 7% respectively. Overall, while it's not the sunniest time of the year, September still offers a balanced chance to catch some sunny rays amidst the tropical humidity.
In Petaling Jaya, Malaysia, September marks a continuation of the city's consistent 12 hours of daylight that begins in March and lasts through to October. This balance of light allows residents and visitors alike to enjoy the tropical warmth and vibrant outdoor activities throughout the month. Interestingly, daylight duration begins to taper off slightly in November and December, eventually settling at 11 hours as the year draws to a close. This trend reflects the region's relatively stable daylight pattern, showcasing a minor fluctuation that transitions gracefully with the changing seasons, making September a delightful time to revel in the sun-soaked days.
In September, Petaling Jaya experiences a gentle breeze, with average wind speeds around 1.9 m/s (4 mph), mirroring the calming winds of August. As summer transitions into fall, the wind maintains a steady rhythm, neither too brisk nor too languid, creating a pleasant atmosphere for outdoor activities. Comparing the month to earlier summer months, there is a slight dip from the 2.1 m/s of July, yet consistent with the trend seen in April and May. Moving forward, October promises a bit more spirited air, as wind speeds are forecasted to increase to 2.3 m/s (5 mph), hinting at the dynamic shift into the latter part of the year. Overall, September's soothing winds encapsulate the region's tropical charm, setting the stage for a vibrant and breezy transition into the heart of the Malay autumn.
Weather in Petaling Jaya varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Petaling Jaya, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of September and January, we observe some notable differences. September tends to be warmer, with average temperatures reaching up to 28°C (83°F) and highs soaring to 36°C (96°F), while January's averages are slightly cooler at 27°C (82°F) with maximums of 34°C (94°F). Both months experience considerable rainfall, but September sees slightly more precipitation at 153 mm (6.0 in) over 22 days, compared to January's 144 mm (5.7 in) across 18 days. Additionally, September has higher humidity levels at 90%, whereas January's humidity is a bit lower at 84%. For more details on January weather specifics, you can check Petaling Jaya weather in January.
In September, the weather tends to be warmer and more humid, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 36°C (96°F). This month sees an average temperature of 28°C (83°F) along with significant precipitation of 153 mm (6.0 in) spread over 22 days, resulting in a high humidity level of 90%. In contrast, February offers a slightly cooler climate, featuring temperatures from a minimum of 22°C (72°F) to a maximum of 36°C (97°F), with the same average of 28°C (83°F). Rainfall in February is less, totaling 94 mm (3.7 in) across 15 days, and the humidity drops to a more comfortable 77%. For more detailed insights, you can check Petaling Jaya weather in February.
In comparing the weather of September and March, both months exhibit similar temperature ranges, with minimums at 24°C (75°F), average temperatures around 28°C (83-84°F), and maximums reaching 36°C (96-98°F). However, March tends to be slightly wetter, with a total precipitation of 161 mm (6.3 in) over 24 days, compared to September's 153 mm (6.0 in) across 22 days. Humidity levels also differ, with September being more humid at 90%, while March has a lower humidity of 77%. For more detailed information, you can visit Petaling Jaya weather in March.
In comparing the weather of September and April, both months experience high temperatures, with minimums around 24°C (75°F) and maximums peaking at 36°C (96°F for September and 97°F for April). While April tends to be slightly warmer on average at 29°C (84°F), September records a similar average temperature of 28°C (83°F). Precipitation is notably higher in April, with 212 mm (8.3 in) over 26 days, compared to September's 153 mm (6.0 in) over 22 days. Additionally, the humidity remains high in both months, although it is slightly more pronounced in September at 90%, compared to April's 80%. For more detailed information, you can check Petaling Jaya weather in April.
In comparing the weather between September and May, we see some notable differences. September typically experiences slightly higher maximum temperatures, peaking at 36°C (96°F) compared to May’s 35°C (95°F). However, May boasts a marginally higher average temperature of 29°C (84°F) against September's 28°C (83°F). When it comes to precipitation, May also surpasses September, with 184 mm (7.2 in) of rain over 26 days, while September records 153 mm (6.0 in) over 22 days. Humidity levels are slightly elevated in September at 90%, compared to 85% in May, contributing to a more humid environment. For a detailed look into May's weather patterns, you can visit Petaling Jaya weather in May.
In comparing the weather in September and June, we see that both months have similar minimum temperatures, averaging around 24°C (75°F). However, September tends to be slightly warmer with an average temperature of 28°C (83°F), compared to June's average of 29°C (84°F). Notably, September experiences more rainfall, with 153 mm (6.0 in) of precipitation over 22 days, while June has 114 mm (4.5 in) over 18 days, making it the drier of the two months. Humidity levels are also higher in September at 90%, compared to 87% in June. For more detailed insights, you can check Petaling Jaya weather in June.
When comparing the weather in September and July, both months exhibit warm temperatures, but September tends to be slightly wetter and more humid. In September, the minimum temperature averages around 24°C (75°F) with highs reaching up to 36°C (96°F), while July has a similar minimum but a slightly higher average of 29°C (84°F) and a maximum of 35°C (96°F). Additionally, September sees more precipitation, totaling 153 mm (6.0 in) over 22 days, compared to July's 96 mm (3.8 in) across 17 days. This increased rainfall in September correlates with a higher humidity level of 90%, compared to July's 87%. For more detailed information on July weather, you can visit Petaling Jaya weather in July.
In comparing the weather of September and August, we can see some notable differences. In September, the average temperature is slightly lower at 28°C (83°F), compared to 29°C (84°F) in August. The maximum temperature remains the same at 36°C (96°F), but September experiences more rain with 153 mm (6.0 in) of precipitation over 22 days, compared to August's 112 mm (4.4 in) over 18 days. Humidity levels remain consistent at 90% for both months, contributing to a generally tropical feel. For more detailed insights into August weather, you can refer to Petaling Jaya weather in August.
September and October share similar temperature ranges, with both months featuring a minimum of 24°C (75°F) and an average of 28°C (83°F). However, October experiences slightly warmer maximum temperatures, peaking at 36°C (98°F) compared to September's 36°C (96°F). Precipitation also increases in October, with 173 mm (6.8 in) over 22 days, compared to September's 153 mm (6.0 in) during the same number of days. Humidity remains relatively high for both months, with October at 89% and September at 90%. For more details on October weather, check out Petaling Jaya weather in October.
In comparing the weather of September and November, we observe some notable similarities and differences. Both months feature a minimum temperature of around 24°C (75°F) and an average temperature of 28°C (82-83°F), maintaining a warm climate. However, November is characterized by slightly lower maximum temperatures at 35°C (95°F) compared to September's 36°C (96°F).
Precipitation becomes a significant factor as November experiences a marked increase, with 292 mm (11.5 in) of rainfall over 28 days, contrasting with September's 153 mm (6.0 in) across 22 days. The humidity levels remain quite high in both months, hovering around 89-90%. For more details, you can view the specific conditions here: Petaling Jaya weather in November.
September and December exhibit similar warm temperature profiles, with both months featuring minimum temperatures of around 24°C (75°F). However, September generally experiences slightly higher average and maximum temperatures, with averages reaching 28°C (83°F) and maximums peaking at 36°C (96°F). In contrast, December's average temperature dips to 27°C (82°F) and maximums to 34°C (94°F). Precipitation also varies significantly, with December experiencing a notable increase in rain, accumulating 244 mm (9.6 in) over 26 days compared to September's 153 mm (6.0 in) over 22 days. Humidity remains high in both months, at 90%. To learn more about the weather in December, check out this link: Petaling Jaya weather in December.
As September rolls into Petaling Jaya, the weather presents a unique blend of heat and humidity that sets it apart from other months. With an average temperature of around 28°C and maximums reaching up to 36°C, the warmth is palpable, while the 90% humidity adds a sweltering layer to the atmosphere. This month is notably characterized by frequent rainfall, with approximately 22 days experiencing precipitation totaling 153 mm, creating a contrast to the drier months earlier in the year. These conditions foster a lush environment, making September a dynamic time for both locals and visitors. For further insights into the region's weather patterns, check out Petaling Jaya Climate.