Last updated: August 27, 2025
In September, Ranong, Thailand experiences a tropical climate characterized by warm temperatures and significant rainfall. With maximum temperatures reaching 34°C (93°F) and an average of 26°C (79°F), the weather remains consistently warm despite frequent showers. Minimum temperatures dip to 22°C (72°F), offering a mild respite from the heat. During this month, the region receives a substantial 392 mm (15.4 in) of rainfall over approximately 27 wet days, leading to a notably high humidity level of 87%. Visitors and residents alike should be prepared for a mix of sun and downpours, typical of Ranong's lush, green landscapes during this time of year.
In September, Ranong, Thailand experiences a comfortable transition into the wet season, with temperatures showing a slight dip compared to the sweltering summer months. The minimum temperature hovers around 22°C (72°F), while the average remains steady at 26°C (79°F), and the maximum climbs to approximately 34°C (93°F). This month marks a trend of gradually decreasing highs, down from the scorching peaks of April and May. Nonetheless, September offers a pleasant climate for outdoor adventures, with humidity levels on the rise, hinting at the impending rains. Whether you explore lush landscapes or unwind by the coast, you'll find September's temperatures to be inviting, striking a balance between warmth and the refreshing embrace of nature's changes.
September marks a pivotal point in the precipitation patterns of Ranong, Thailand, with an impressive 392 mm (15.4 in) of rainfall over 27 days. This surge represents the peak of the wet season, contributing significantly to the already substantial totals seen in preceding months like August and May. As the monsoon continues to unleash its force, September's rainfall sets a high bar, contrasting sharply with the much drier conditions at the beginning of the year. The consistent addition of moisture not only showcases the lush biodiversity of this tropical region but also highlights an ongoing trend of increased precipitation from May through October, ultimately shaping the local climate and ecosystems.
In September, humidity in Ranong, Thailand remains notably high at 87%, reflecting the region's tropical climate. As the monsoon season peaks, humidity levels typically soar, peaking in the summer months of August with a remarkable 88%. Interestingly, while September sees a slight dip from August, it still maintains a significant level of moisture in the air, similar to the preceding months. This persistent humidity trend from June through September—sustained above 85%—underscores the area's lush, verdant landscapes and vibrant ecosystems, drawing in travelers eager to experience the beauty of Thailand's wet season.
In September, the UV Index in Ranong, Thailand, remains consistently high at 14, placing it in the extreme exposure category with a quick burn time of just 10 minutes. This trend of elevated UV levels carries through the summer months, where the index has settled around 14 since June, reflecting a stable and intense sun exposure that visitors and residents must navigate. As the tropical climate persists, it's crucial to remain vigilant about sun protection to avoid harmful effects. For detailed insights on UV conditions throughout the year, check out Ranong UV Index.
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September in Ranong, Thailand, offers a charming display of sunshine with 264 hours of radiant light, making it a delightful month for outdoor enthusiasts. While this marks a decline from the sun-soaked high of 345 hours in March, it remains a pleasant time to explore the region. The gradual decrease in daylight hours from summer peaks is a reminder of the impending transition to the cooler months ahead. Though September's sunshine may be less intense than in the earlier months, it still provides ample opportunity to enjoy Ranong's stunning landscapes and vibrant culture, as the ambiance remains warm and inviting.
In Ranong, Thailand, the likelihood of experiencing sunny weather dramatically dwindles from the earlier months, with September witnessing a particularly sparse 8% chance of sunshine. This marks a significant drop from the drier months of January and February, which enjoy sunny probabilities of 38% and 52% respectively. As summer transitions into the rainy season, the chances of sunlight plummet, reaching their lowest in August at merely 5% and barely improving as September rolls in. Travelers hoping for clear skies in September may find themselves disappointed, as the trend indicates that this month seldom offers the warm, sunny days that characterize the earlier part of the year.
In Ranong, Thailand, September marks the continuation of the region's consistent daylight pattern, with the sun gracing the sky for 12 hours each day. This trend of ample daylight begins in March and continues through September, reflecting the area's tropical climate and providing ample time for outdoor activities and exploration. As the month transitions into October, daylight begins to wane, dropping back to 11 hours, signaling the onset of the cooler months ahead. The stability of daylight from March to September creates a sense of predictability, allowing both locals and visitors to enjoy the region's stunning landscapes and vibrant culture under the generous sun.
In September, the winds in Ranong, Thailand gently calm down, averaging 2.5 m/s (6 mph), similar to the breezy conditions observed in February and November. This month bridges the transition from the slightly stronger gusts of the preceding summer months, which peaked at 3.3 m/s in July. As the monsoon season begins to taper off, the slightly diminished wind speed offers a tranquil atmosphere, perfect for enjoying the lush tropical surroundings. With the winds generally fluctuating between 2.5 m/s and 3.3 m/s throughout the year, September stands out as a serene period, inviting both relaxation and exploration.
Weather in Ranong varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Ranong, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 22°C (72°F) to a maximum of 34°C (93°F), with an average of 26°C (79°F). This month is characterized by high humidity levels at 87% and considerable rainfall, recording 392 mm (15.4 in) over 27 days. In contrast, January tends to be slightly cooler with a minimum temperature of 20°C (68°F) and a maximum of 33°C (92°F), while maintaining the same average of 26°C (79°F). Rainfall significantly decreases to 132 mm (5.2 in) over just 10 days, and humidity is lower at 72%. For a more detailed look at January weather, visit Ranong weather in January.
September and February exhibit distinct weather patterns. In September, temperatures range from a minimum of 22°C (72°F) to a maximum of 34°C (93°F), with an average of 26°C (79°F). This month is characterized by high humidity at 87% and substantial rainfall of 392 mm (15.4 in) over 27 days, indicating a wet environment. In contrast, February shows slightly cooler minimum temperatures at 19°C (66°F) and maintains a maximum similar to September at 34°C (94°F), with an average of 27°C (80°F). February experiences significantly less precipitation, only 24 mm (0.9 in) across just 6 days, along with lower humidity at 68%. This makes February a much drier and more comfortable month compared to the rainy September. For more detailed insights, check out Ranong weather in February.
September and March showcase distinct weather patterns, reflecting the transition from the rainy season to the dry season. In September, temperatures range from a mild 22°C (72°F) to a high of 34°C (93°F), with an average of 26°C (79°F). The month experiences significant rainfall, totaling 392 mm (15.4 in) over 27 days, alongside high humidity levels at 87%. In contrast, March offers warmer temperatures, ranging from a minimum of 20°C (68°F) to a peak of 36°C (97°F), with an average of 28°C (82°F). Rainfall is considerably lower at 55 mm (2.2 in) over just 9 days, and humidity drops to a more comfortable 68%. For more detail on the specific conditions, you can check out Ranong weather in March.
In comparing the weather of September and April, we see distinct differences in temperature and precipitation patterns. September typically experiences warmer temperatures, with averages ranging from a minimum of 22°C (72°F) to a maximum of 34°C (93°F), while April showcases even hotter conditions, with an average low at 22°C (72°F) and soaring highs reaching up to 37°C (99°F). Additionally, September is characterized by significant rainfall, accumulating 392 mm (15.4 in) over 27 days and a high humidity of 87%. In contrast, April experiences less precipitation, totaling 233 mm (9.2 in) over 24 days, with a comparatively lower humidity of 69%. Overall, while both months share similar minimum temperatures, April tends to be hotter and drier than the more humid and rainy September. For more detailed information on April weather, check this link: Ranong weather in April.
September and May showcase distinct yet warm weather patterns. September experiences slightly lower temperatures, with an average of 26°C (79°F), peaking at 34°C (93°F), while May is marginally warmer, averaging 27°C (81°F) and reaching up to 36°C (97°F). Precipitation is higher in September at 392 mm (15.4 in) over 27 days, compared to May’s 314 mm (12.4 in) across 28 days. Additionally, September's humidity is notably higher at 87%, while May maintains a relatively lower humidity level of 77%. For more information on the conditions specific to May, visit Ranong weather in May.
In comparing the weather conditions of September and June, both months exhibit warm temperatures with only a slight variation. September has a minimum temperature of 22°C (72°F), an average of 26°C (79°F), and peaks at 34°C (93°F), while June starts slightly warmer with a minimum of 23°C (74°F), an average of 27°C (81°F), and a maximum of 33°C (92°F). Precipitation levels are notably higher in September, reaching 392 mm (15.4 in) over 27 days, compared to June's 276 mm (10.9 in) over 26 days. Humidity remains similar, with September at 87% and June at 86%. For a more detailed look at the weather in June, you can visit Ranong weather in June.
When comparing the weather in September to that of July, we see some interesting similarities and differences. Both months have a similar average temperature, with September showing a slight increase in maximum temperatures at 34°C (93°F) compared to July's 33°C (91°F). However, September brings significantly more precipitation, totaling 392 mm (15.4 in) over 27 days, while July experiences less rain at 263 mm (10.4 in) across 28 days. Humidity levels remain high in both months, with September at 87% and July at 86%, contributing to a consistently tropical feel. For more insights on July's weather patterns, you can check Ranong weather in July.
In comparing the weather of September and August, September tends to be slightly warmer, with a minimum temperature of 22°C (72°F) and a maximum of 34°C (93°F), while August has a minimum of 23°C (73°F) and a maximum of 33°C (91°F). Both months have the same average temperature of 26°C (79°F), but September experiences significantly more precipitation at 392 mm (15.4 in) compared to August's 300 mm (11.8 in), both occurring over 27 days. Humidity levels are similar, with September slightly lower at 87% and August at 88%. For more detailed information on August weather, you can visit Ranong weather in August.
In September, the weather is characterized by slightly warmer temperatures, with minimums averaging around 22°C (72°F) and maximums reaching 34°C (93°F). The month experiences considerable rainfall, with a total precipitation of 392 mm (15.4 in) spread across 27 days, and humidity levels are high at 87%. In comparison, October sees a minor drop in maximum temperature to 33°C (92°F), while the minimum remains unchanged at 22°C (73°F). Rainfall is slightly reduced to 366 mm (14.4 in), occurring over 29 days, leading to a marginally lower humidity of 86%. For more detailed weather information, you can check Ranong weather in October.
In September, the weather is characterized by warmer temperatures, with minimums averaging 22°C (72°F) and maximums reaching up to 34°C (93°F). This month also sees higher precipitation levels, totaling 392 mm (15.4 in) over 27 days, leading to high humidity at 87%. In contrast, November experiences slightly cooler temperatures, with minimums at 21°C (70°F) and maximums around 33°C (91°F). Precipitation decreases significantly to 244 mm (9.6 in) over 24 days, but humidity remains steady at 87%. For a more detailed overview, you can check Ranong weather in November.
September and December present notable differences in weather patterns. In September, temperatures are warmer, with a minimum of 22°C (72°F) and a high of 34°C (93°F), while December is slightly cooler with a minimum of 20°C (68°F) and a maximum of 32°C (90°F). Additionally, September experiences significantly higher precipitation levels, with 392 mm (15.4 in) falling over 27 days, compared to December's 118 mm (4.7 in) over just 14 days. Humidity also remains high in both months, but is marginally lower in December at 83% versus September's 87%. For more detailed information about December weather, you can visit Ranong weather in December.
September in Ranong stands out with its high humidity and significant rainfall, making it one of the wettest months of the year. While temperatures remain warm and consistent, the frequent downpours can create a dramatic shift in the atmosphere compared to the drier months. This lush, vibrant landscape, coupled with the cool breezes following a shower, offers a unique charm that attracts those looking to experience the beauty of the rainy season. For a deeper understanding of what to expect throughout the year, you can explore more at Ranong Climate.