Last updated: August 27, 2025
In September, Pattaya, Thailand, experiences a tropical climate marked by warm temperatures and significant rainfall. With a maximum reaching 34°C (93°F) and an average of 28°C (83°F), the weather remains hot and humid, with minimums around 25°C (77°F). This month sees a notable 276 mm (10.8 in) of precipitation over 26 days, resulting in an average humidity of 87%. While the frequent showers may deter some travelers, those who visit during this vibrant season can enjoy lush landscapes and a quieter atmosphere, making it an excellent time to explore the city's hidden gems.
In Pattaya, Thailand, September ushers in a warm, tropical atmosphere with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 34°C (93°F). The average temperature settles at a pleasant 28°C (83°F), reflecting the monsoon season's influence on the climate. As summer transitions to autumn, the city experiences a slight dip in warmth compared to the peak heat of May and June, which feature higher maximums of 36°C (97°F). Despite the humidity, September maintains a tropical allure, inviting travelers to enjoy its vibrant beach scene and lush surroundings while embracing the cooler evenings that are characteristic of this time of year.
In September, Pattaya experiences its peak of rainfall, with an impressive 276 mm (10.8 in) of precipitation over 26 days, making it one of the wettest months of the year. This surge in rainfall is part of the region's monsoon season, which starts early in the summer and escalates by the time September arrives. The increase is noticeable compared to the preceding months, with July and August already seeing substantial rainfalls of 181 mm (7.1 in) and 180 mm (7.1 in) respectively. As the skies open up, the lush landscapes come alive, creating a vibrant and tropical atmosphere, but also reminding visitors to stay prepared for the frequent showers that define this time of year.
As September rolls in, Pattaya, Thailand experiences a notable drop in humidity from the sweltering heights of summer, yet it remains high at around 87%. The month continues the trend of elevated humidity, building on the peaks seen in July and August, where levels reached 86% and 88% respectively. This gradual decline from the summer peak hints at the onset of the monsoon’s transition period, creating a sticky but slightly more bearable environment. With the humidity gradually tapering off into the cooler months of October and November, those visiting Pattaya in September can expect a muggy climate, yet the allure of the beautiful beaches and vibrant culture remains irresistibly enhanced by the tropical ambiance.
In September, Pattaya, Thailand, continues to experience an extreme UV Index of 13, indicating high levels of solar radiation that can lead to skin damage in just 10 minutes of unprotected exposure. This month marks a slight dip from July and August's peak UV Index of 14, yet the risk remains significant. With similar values carried through to October, it's essential for residents and visitors alike to take precautions—such as wearing sunscreen and protective clothing—when enjoying the sun. As part of a broader trend, Pattaya's UV Index remains consistently high throughout the year, underlining the importance of staying informed about UV levels. For more detailed information, check out Pattaya UV Index.
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As September rolls into Pattaya, Thailand, the sun shines brightly, illuminating the coastal paradise with 267 hours of glorious daylight. While this marks a slight dip from the sun-drenched months of March and April, which bask in over 300 hours, it still offers ample opportunity for beach lovers and adventurers. The trend shows a gradual decline in sunlight hours from the peak of spring, yet September retains a warm charm, providing a perfect blend of sun and the cooling onset of autumn. Travelers can enjoy vibrant sunsets, while locals prepare for the transition into the more temperate months ahead, ensuring that Pattaya remains a captivating destination year-round.
September in Pattaya, Thailand, welcomes a notably low likelihood of sunny weather, with only an 8% chance of sun, marking it as one of the least favorable months for sunshine. This trend is part of a broader pattern in the region, as the rainy season peaks during the summer months with July and August also showcasing dismal sunny prospects at 12% and 9% respectively. In contrast, the year begins strongly, with January seeing a solid 55%, and February reaching a bright 69%. As autumn approaches, the chances improve slightly in October to 11% and further increase in November as skies clear up to 22%. Thus, for those seeking sun-drenched days in Pattaya, it's advisable to plan around the early months of the year rather than in September.
In Pattaya, Thailand, the rhythm of daylight showcases a captivating consistency throughout the year. In September, the city enjoys 12 hours of daylight, continuing the trend established from April to August. This equal distribution of light not only enhances the vibrant beach life but also invites both locals and tourists to indulge in outdoor adventures. As the months transition into October, daylight begins to taper off to 11 hours, hinting at the approach of the cooler season. Overall, Pattaya’s daylight duration splendidly aligns with its tropical allure, making every month a celebration of sun-soaked experiences.
In September, Pattaya experiences a gentle shift in its wind dynamics, with an average wind speed of 2.2 m/s (5 mph). This marks a slight decrease from the buoyant breezes of the preceding months, which often reached up to 3.2 m/s in both June and July. As summer transitions into autumn, the winds become softer, contributing to a more serene atmosphere ideal for leisurely beach days and sunset strolls. The trend shows a gradual easing in wind conditions as the year progresses, with September typically offering a calm respite before the breezier months return in December. This combination of tranquil winds and warm temperatures creates a perfect setting for relaxation in this vibrant coastal city.
Weather in Pattaya varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Pattaya, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is characterized by warmer temperatures, with a minimum of 25°C (77°F) and an average of 28°C (83°F), peaking at a maximum of 34°C (93°F). This month also sees significant rainfall, totaling 276 mm (10.8 in) over 26 days, and high humidity levels at 87%. In contrast, January experiences cooler temperatures, ranging from a minimum of 17°C (62°F) to an average of 27°C (81°F), while still reaching the same maximum of 34°C (93°F). Precipitation is much less prevalent in January, with only 35 mm (1.4 in) falling over just 5 days, accompanied by lower humidity at 59%. For more details, you can explore Pattaya weather in January.
September and February exhibit contrasting weather patterns. In September, temperatures range from a minimum of 25°C (77°F) to a maximum of 34°C (93°F), with an average of 28°C (83°F). However, this month is characterized by high precipitation, totaling 276 mm (10.8 in) over 26 days, and humidity levels soaring to 87%. In stark contrast, February offers a milder climate, where temperatures also reach up to 34°C (93°F) but maintain an average of 27°C (82°F) with a lower minimum of 19°C (66°F). Precipitation in February is minimal at just 32 mm (1.2 in) over 6 days, and humidity drops significantly to 58%. For more details, you can check Pattaya weather in February.
September and March both witness warm temperatures, but they differ significantly in terms of precipitation and humidity. In September, the weather typically shows a minimum temperature of 25°C (77°F) and can reach up to 34°C (93°F), experiencing substantial rainfall of 276 mm (10.8 in) over 26 days, resulting in a high humidity level of 87%. In contrast, March has a slightly lower minimum temperature of 22°C (73°F) while maintaining a similar maximum at 34°C (94°F). It sees much less precipitation at 64 mm (2.5 in) across only 10 days and lower humidity at 61%. This comparison indicates that while both months are warm, September is considerably wetter and more humid than March. For further details on the weather in March, visit Pattaya weather in March.
September and April present contrasting weather patterns. In September, temperatures range from a minimum of 25°C (77°F) to a maximum of 34°C (93°F), with an average temperature of 28°C (83°F). The month is characterized by significant rainfall, totaling 276 mm (10.8 in) over 26 days, along with high humidity levels at 87%. In contrast, April features a slightly cooler minimum temperature of 19°C (67°F) and a higher maximum of 35°C (96°F), with an average of 29°C (85°F). Precipitation is much lower in April, totaling 120 mm (4.7 in) over 17 days, and humidity is comparatively less at 70%. For more details on the climate, check out Pattaya weather in April.
When comparing the weather in September and May, September tends to be slightly cooler with average temperatures around 28°C (83°F), while May can reach a maximum of 36°C (97°F), making it the hotter month with an average of 29°C (85°F). In terms of precipitation, September is significantly wetter, receiving 276 mm (10.8 in) over 26 days of rain, compared to May's 166 mm (6.5 in) across 22 days. Humidity levels are also higher in September at 87%, compared to 80% in May, creating a more oppressive atmosphere during the former month. For more details about May weather, you can check out Pattaya weather in May.
In September, the weather in Pattaya is characterized by slightly lower average temperatures compared to June, with daytime highs reaching around 34°C (93°F) and an average temperature of 28°C (83°F). However, September experiences much higher precipitation, with 276 mm (10.8 in) spread over 26 days, leading to a more humid atmosphere at 87%. In contrast, June tends to be drier, accumulating only 130 mm (5.1 in) of rainfall over 23 days, with maximum temperatures slightly higher at 35°C (95°F) and an average of 29°C (85°F). The humidity remains high in June at 85%, making both months feel warm and muggy. For a more detailed look at the weather conditions, check out Pattaya weather in June.
When comparing the weather in September to that of July, we observe that September tends to be slightly cooler, with average temperatures ranging from a minimum of 25°C (77°F) to a maximum of 34°C (93°F), while July has similar minimum temperatures but averages slightly higher at 29°C (84°F) with a maximum of 35°C (95°F). Additionally, September experiences much higher precipitation, totaling 276 mm (10.8 in) spread over 26 days, compared to July's 181 mm (7.1 in) under the same number of rainy days. Despite these differences, both months maintain high humidity levels, with September at 87% and July slightly lower at 86%. For more detailed information on July weather, you can visit Pattaya weather in July.
In comparing the weather between August and September, both months showcase warm temperatures, but September tends to be slightly cooler with average temperatures ranging from a minimum of 25°C (77°F) to a maximum of 34°C (93°F), compared to August's minimum of 24°C (76°F) and maximum of 35°C (95°F). Additionally, September experiences significantly more rainfall, with 276 mm (10.8 in) over 26 days, whereas August has 180 mm (7.1 in) across 24 days. Humidity levels remain quite similar, hovering around 87% in September and 88% in August. For more detailed information on August weather, you can refer to Pattaya weather in August.
In September, temperatures in the region remain quite warm, with a minimum of 25°C (77°F) and an average high of 34°C (93°F). However, the month is marked by significant rainfall, totaling 276 mm (10.8 in) spread over 26 days, resulting in a high humidity level of 87%. In contrast, October experiences a slightly cooler minimum temperature of 23°C (73°F), while still maintaining the same average high of 34°C (93°F). Precipitation decreases to 233 mm (9.2 in) over 25 days, and humidity drops to 83%. This comparison highlights a transition from September's wetter and more humid conditions to the slightly drier and cooler weather typical of October. For more details about October weather patterns, you can check out Pattaya weather in October.
In September, the weather is characterized by higher temperatures and significant rainfall, with minimum temperatures reaching 25°C (77°F) and averaging 28°C (83°F), while maximum temperatures can soar to 34°C (93°F). The month sees a substantial amount of precipitation, totaling 276 mm (10.8 in) over 26 days, contributing to an overall humidity level of 87%. In contrast, November offers a slightly cooler vibe, boasting minimum temperatures of 22°C (72°F) and an average also at 28°C (82°F). While maximum temperatures remain similar at 34°C (94°F), November experiences much less rainfall, with only 73 mm (2.9 in) over 11 days and a reduced humidity of 78%. For more detailed insights, you can check out Pattaya weather in November.
In September, temperatures are quite warm, with a minimum of 25°C (77°F) and an average temperature of 28°C (83°F), peaking at a hot 34°C (93°F). This month also experiences significant rainfall, totaling 276 mm (10.8 in) over 26 days, coupled with high humidity levels at 87%. In contrast, December offers a milder climate, with minimum temperatures dropping to 16°C (61°F) and maintaining an average of 27°C (80°F), while still reaching a maximum of 34°C (93°F). Precipitation in December is significantly reduced to just 33 mm (1.3 in) over only 4 days, and the humidity levels also drop to a more comfortable 70%. For more details on the December weather, you can check Pattaya weather in December.
As September rolls into Pattaya, the warmth of summer lingers with average temperatures hovering around 28°C (83°F). However, this month is notably marked by a significant increase in humidity, creating a notably humid atmosphere that feels more intense than in previous months. The weather is also characterized by frequent rainfall, as September sees a high number of precipitation days, resulting in a total of 276 mm (10.8 in) of rain. This shift not only adds a refreshing coolness but also nourishes the lush surroundings, making it a unique time to experience Pattaya’s vibrant scenery. If you're curious about Pattaya’s overall climate patterns, check out Pattaya Climate for more insights.