September Weather in George Town, Malaysia

Last updated: August 21, 2025

In September, George Town, Malaysia, experiences a tropical climate characterized by warm temperatures and high humidity. The maximum temperature hovers around 31°C (89°F), while the average settles at a comfortable 28°C (82°F), and the minimum rarely drops below 25°C (77°F). Rainfall is a notable aspect of this month, with an impressive 285 mm (11.2 in) of precipitation spread over 24 days, contributing to the region’s lush landscapes. With humidity levels soaring at 89%, visitors can expect a tropical atmosphere, making it an ideal time to enjoy indoor cultural activities or explore the vibrant streets of this UNESCO World Heritage site.

September Temperature in George Town

In September, George Town, Malaysia, continues to embrace its warm tropical climate, with temperatures showcasing a delightful consistency. The minimum temperature hovers around a comfortable 25°C (77°F), while daily averages remain steady at 28°C (82°F). Maximum temperatures peak at around 31°C (89°F), making it feel pleasantly warm. This slight drop in maximum temperatures from previous months offers a refreshing transition as the city edges into the latter part of the year. Overall, September maintains a harmonious blend of tropical warmth and moderate humidity, ideal for exploring the vibrant streets and rich culture of George Town.

September Weather in George Town: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in George Town, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In George Town, September 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).
JanFebMarAprMayJunJulAugSepOctNovDec828283828383838282828181
Data source: Temperature data for George Town 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.

September Precipitation in George Town

September in George Town, Malaysia, marks a notable peak in the region's precipitation, with a significant accumulation of 285 mm (11.2 in) spread over 24 days. This month continues the trend of increasing rainfall that begins in April and peaks just before the heavier downpours of October and November. As the landscape transforms under the regular rhythm of monsoon showers, September's weather not only contributes to the lush greenery but also engages the community with its frequent rains, characteristic of this tropical climate. With the previous month, August, recording 187 mm (7.3 in), it's clear that September ushers in a transition toward the wettest months of the year, showcasing a dynamic shift in weather patterns that define the Malaysian experience.

September Precipitation Trends in George Town

The chart displays monthly precipitation patterns in George Town, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In George Town, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec9968136221299162142187285291347183
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in George Town

September is a month when George Town, Malaysia, experiences a noticeable rise in humidity, reaching a peak of 89%. This increase signals the transition into the wetter months, following August's already high levels of 87%. Interestingly, the trend shows that as the year progresses, humidity levels generally climb, with only a slight dip during the mid-year months of April (73%) and May (79%). The months leading to September consistently display higher humidity, culminating in this peak before October maintains a slightly lower yet still substantial level of 86%. This pattern highlights the tropical climate's signature humidity, enhancing the vibrant, lush environment that characterizes this historical city.

September Average Humidity in George Town

This chart illustrates the average monthly humidity levels in George Town, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in George Town is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%76%74%73%79%85%84%87%89%87%88%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in George Town

In September, George Town, Malaysia, experiences an extreme UV Index of 14, maintaining its trend of high sun exposure consistent throughout the year. This month, like its predecessors, emphasizes the need for sun safety, as the burn time remains a swift 10 minutes. Following a steady pattern from January through August, where UV values hovered between 12 and 15, September reinforces the importance of being vigilant against UV radiation. As the heat continues to linger into the autumn months, residents and visitors alike should remain proactive about skin protection. For more insights on UV levels, check out George Town UV Index.

Maximum UV Index Levels in George Town for September

The chart shows the monthly maximum UV Index (UVI) for George Town in September, 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 September, the maximum UV index in George Town typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131515141413121314141212
Data source: George Town September 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.

September Sunshine in George Town

September in George Town, Malaysia, offers 281 hours of sunshine, a delightful continuation of the summer glow seen throughout the year. While slightly less sunny than the peak months of March and July, which boast over 330 hours, September still holds its own amidst a transitional phase as the year edges toward the monsoon season. The city experiences a gradual decline in daylight hours compared to the vibrant summer months, such as June and August, but remains a captivating destination for sun-seekers. With an average of over 280 sunshine hours each September, George Town invites visitors to bask in its warm ambiance and enjoy the vibrant cultural tapestry it has to offer.

Monthly Sunshine Duration in George Town: September Highlighted

The September sunshine duration represents the total number of hours George Town experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec247h306h331h298h289h286h312h304h281h283h258h292h
Data source: George Town September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in George Town During September

September in George Town, Malaysia, offers a modest 10% chance of sunny weather, making it one of the less favorable months for sunseekers. Following the peak months of February and March, which enjoy a more promising 35% and 32% chance of sunshine, the likelihood of clear skies dwindles significantly as the year progresses. Notably, the transition from August to September sees a decline from 9% to 10%, indicating that this period remains largely overshadowed by cloudier days. As the rainy season approaches, with October dropping to an even lower 8% chance of sunshine, it's clear that those visiting George Town in September should prepare for a mix of weather, embracing the charm of the city despite the clouds.

Percentage of Sunny Days in September in George Town

The chart illustrates the percentage of sunny days in George Town throughout the year, with September 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 George Town experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec12%35%32%17%14%19%15%9%10%8%4%22%
Data source: George Town September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in George Town in September

As September rolls around in George Town, Malaysia, residents and visitors alike can enjoy 12 hours of daylight, continuing the trend established over the summer months. This consistent daylight duration from April through September highlights a stable climate that is characteristic of the region, offering ample time for exploration and outdoor activities. Following September, the days will gradually shorten, dropping to 11 hours in October. This gentle decline marks the transition into the shorter days of the year, while still providing plenty of time to bask in the warm tropical sun.

Average Daylight Hours in George Town for September

The chart illustrates the variation in daylight duration in George Town throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 50m11h 56m12h 4m12h 13m12h 21m12h 24m12h 23m12h 16m12h 7m11h 59m11h 51m11h 48m
Data source: George Town daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in George Town

In September, George Town, Malaysia experiences a gentle breeze with an average wind speed of 2.2 m/s (5 mph), which is consistent with the preceding months of February and July. This subtle shift in the wind from the lighter speeds of May and June signals a transition towards the typically more invigorating conditions found in the later months of the year. As we edge closer to December, the winds pick up significantly, reaching 3.5 m/s (8 mph), providing a refreshing contrast to the earlier calm spells. Overall, September's wind patterns demonstrate a stabilizing consistency, marking a pleasant period before the seasonal changes bring stronger currents to the coastal city.

Average September Wind Speed in George Town

The chart displays monthly wind speed patterns in George Town, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.62.92.22.11.82.02.12.02.2 m/s2.12.23.5
Data source: George Town September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in George Town Compares to Other Months

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

September and January in George Town display quite similar overall temperatures, with January experiencing slightly cooler minimum temperatures at 24°C (76°F) compared to 25°C (77°F) in September. Both months have an average temperature of 28°C (82°F); however, January tends to be a bit drier, receiving only 99 mm (3.9 in) of precipitation over 16 days, whereas September has much higher rainfall at 285 mm (11.2 in) across 24 days. Additionally, humidity is marginally lower in January at 83%, compared to September's 89%. For those interested in more details about January weather, check out George Town weather in January.

In comparing the weather patterns of September and February, we see notable differences. September tends to be wetter, with an average precipitation of 285 mm over 24 days, resulting in a humid environment with a humidity level of 89%. The temperatures are warm but moderate, with a minimum of 25°C and a maximum of 31°C. In contrast, February features slightly lower humidity at 76% and far less rainfall, totaling only 68 mm across 13 days. Temperatures are similar, with February's averages reaching a minimum of 24°C and a maximum of 33°C, making it the warmer month overall. For more details, you can explore George Town weather in February.

In September, the weather is characterized by warm temperatures, with a minimum of 25°C (77°F), an average of 28°C (82°F), and a maximum reaching 31°C (89°F). However, this month also brings significant rainfall, with 285 mm (11.2 in) of precipitation spread over 24 days, and a high humidity level of 89%. In contrast, March experiences similar minimum and average temperatures, with a slightly higher maximum of 32°C (90°F). March sees considerably less rainfall, totaling 136 mm (5.3 in) over 22 days, and the humidity is lower at 74%. For more detailed information, you can check George Town weather in March.

In comparing the weather of September and April, both months feature similar average temperatures, with April showing a slight edge with a maximum temperature of 32°C (89°F) compared to September's 31°C (89°F). However, September is characterized by significantly higher precipitation, totaling 285 mm (11.2 in) over 24 days, while April sees a lesser amount of 221 mm (8.7 in) across 28 days. Additionally, September has a higher humidity level at 89%, in stark contrast to April’s more comfortable 73%. For a deeper look into April’s weather specifics, you can check out George Town weather in April.

In comparing the weather of September and May, we see that both months offer warm temperatures, with September having a minimum of 25°C (77°F) and an average of 28°C (82°F), while May has a slightly warmer minimum of 26°C (78°F) and an average of 28°C (83°F). While maximum temperatures in September peak at 31°C (89°F) compared to May's 32°C (90°F), September is notably wetter, with 285 mm (11.2 in) of precipitation over 24 days, whereas May experiences 299 mm (11.8 in) across 29 days. Additionally, September is more humid, with levels at 89%, compared to May's 79%. For detailed weather information, you can check out George Town weather in May.

In comparing the weather of September and June, both months exhibit similar temperature ranges, with September having minimum temperatures around 25°C (77°F) and average highs of 31°C (89°F), while June enjoys slightly higher maximums at 32°C (90°F). However, September is notably wetter, experiencing about 285 mm (11.2 in) of precipitation over 24 days, compared to June's 162 mm (6.4 in) across 22 days. Humidity levels are also higher in September at 89% compared to 85% in June, contributing to a more oppressive atmosphere. For a closer look at June weather specifics, you can visit George Town weather in June.

In comparing the weather between September and July, both months exhibit similar temperature ranges, with July having a slightly higher maximum average temperature of 32°C (89°F) compared to September's 31°C (89°F). However, September is characterized by significantly higher precipitation, totaling 285 mm (11.2 in) over 24 days, while July experiences only 142 mm (5.6 in) over 19 days. Additionally, September has a higher humidity level at 89%, compared to July's 84%. This combination of increased rainfall and humidity in September creates a more humid and wetter atmosphere than the relatively drier conditions of July. For more information, you can check this link: George Town weather in July.

September and August share similar temperature ranges, with minimums at 25°C (77°F), average highs around 31°C (89°F), and a slight variation in average temperatures—September averaging 28°C (82°F) compared to August's 28°C (83°F). However, September is notably wetter, receiving 285 mm (11.2 in) of precipitation over 24 days, while August had less rainfall at 187 mm (7.3 in) over the same number of days. Additionally, September experiences a slightly higher humidity level at 89%, compared to August's 87%. For more detailed weather information, you can check out George Town weather in August.

September and October display similar temperature ranges, with both months featuring a minimum of 25°C (77°F), an average of 28°C (82°F), and a maximum of 31°C (89°F). However, October sees a slight increase in precipitation, with 291 mm (11.5 in) compared to September's 285 mm (11.2 in), along with a greater number of rainy days, totaling 27 days compared to 24 days in September. Additionally, October's humidity is marginally lower at 86%, compared to September's 89%, offering a slightly more comfortable atmosphere. For more detailed insights, you can check George Town weather in October.

September and November display somewhat similar temperatures, with September featuring minimums of 25°C (77°F) and maximums reaching 31°C (89°F), while November maintains a similar range with a slight dip in maximum temperature to 31°C (88°F) and an average of 27°C (81°F). However, November experiences increased precipitation, totaling 346 mm (13.6 in) over 29 days compared to September's 285 mm (11.2 in) over 24 days. Humidity levels are also comparable, hovering around 89% in September and slightly lower at 88% in November. For more details, check out George Town weather in November.

In September, the weather is characterized by higher precipitation, with an average of 285 mm (11.2 in) spread over 24 rainy days, while December sees reduced rainfall, totaling 183 mm (7.2 in) over just 20 days. Despite both months experiencing similar temperature ranges—with minimums around 25°C (77°F) and maximums near 31°C (89°F)—September tends to feel more humid at 89%, compared to December's slightly higher humidity of 90%. For a more detailed look at December weather, you can check George Town weather in December.

Compare George Town's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in George Town

As September arrives in George Town, the tropical climate truly takes center stage. With warm temperatures ranging from a comfortable 25°C to a sultry 31°C, this month showcases the heat and humidity that the region is known for. Rain becomes a frequent visitor, with an impressive 285 mm falling over 24 days, making it one of the wettest months of the year. The atmosphere feels notably muggy, with humidity reaching a staggering 89%. This combination of warmth and frequent rainfall distinguishes September from other months, inviting you to embrace the vibrant, lush surroundings that flourish during this time. For a deeper dive into the climatic patterns that define this enchanting location, check out George Town Climate.