Last updated: August 31, 2025
In September, Muscat, Oman basks in the heat of summer, with maximum temperatures soaring to a sizzling 42°C (107°F) and an average of a warm 32°C (90°F). Nights offer slight relief with temperatures dipping to a comfortable 26°C (80°F). Remarkably, this month experiences no precipitation, ensuring the skies remain clear and sunny throughout. With a relative humidity of 49%, the air feels warmer, making September an ideal time for those who thrive in dry, heat-drenched conditions. Embrace the sun and explore the vibrant beauty of Muscat this month!
In September, Muscat experiences a transition as the summer heat begins to wane but still holds onto significant warmth. With minimum temperatures hovering around 26°C (80°F) and averaging a balmy 32°C (90°F), the city continues to bask in the sun's embrace, while the maximums peak at 42°C (107°F), marking it one of the warmer months. This warmth is a continuation of the preceding summer pattern, where temperatures frequently flirt with the high 40s. September serves as a reminder of the lingering heat before the cooler October days set in, making it an ideal time for those who enjoy the last rays of summer sun while still allowing for a slight dip in the intensity of the heat.
In September, Muscat, Oman, experiences a stark continuation of its dry spell, with 0 mm of precipitation recorded and not a single rainy day throughout the month. This pattern is characteristic of the region, where summer's scorching heat persists into early fall, making September one of the driest months. Following a brief spike in October with 10 mm of rain, the city transitions back to slightly wetter conditions in the subsequent months, highlighting a stark contrast between early autumn and the approaching winter. The overall trend showcases Muscat's arid climate, with most rainfall concentrated towards the end of the year, inviting a sense of anticipation for the reprieve from the long, sun-drenched days.
In September, Muscat experiences a noticeable rise in humidity, peaking at 49%, which aligns with the high levels observed in the preceding months of July and August. This late-summer humidity reflects the region's transition from the sweltering heat of summer to the slightly cooler autumn months. As temperatures begin to dip in October, the humidity further increases to 54%, suggesting a trend where the onset of fall brings a more humid atmosphere. Overall, the seasonal fluctuation indicates that while summer months maintain relatively stable humidity levels, the approach of autumn introduces a gradual increase, setting the stage for a more moisture-laden climate as the year draws to a close.
As September approaches in Muscat, Oman, residents and visitors can expect an extreme UV Index of 11, with a burn time of only 10 minutes under direct sunlight. This trend continues from the peak summer months of July and August, both also registering an UV Index of 11, showcasing the relentless sun that characterizes the region. Despite a slight drop anticipated in October to a still very high UV Index of 9, September remains a crucial month for sun safety. It's important to stay protected during this time, as prolonged exposure can lead to serious skin damage. For more detailed information on UV levels and safety tips, check out Muscat UV Index.
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September in Muscat, Oman, sees a delightful continuation of summer's sunny embrace, boasting 334 hours of bright sunshine. This figure reflects a gentle tapering as the month transitions into autumn, following the peak of 371 hours in May and a steady decline over the summer months. While September shines brightly, it marks a slight decrease from the consistently high levels earlier in the year, such as 343 hours in April and 365 hours in July. Nevertheless, it still outshines the cooler months ahead, showcasing Muscat's enduring warmth as it prepares for the seasonal shift, ensuring that the allure of the sun remains a vibrant highlight.
In Muscat, Oman, the likelihood of sunny weather in September stands at a moderate 74%, marking a transition from the peak summer sun to more varied conditions. This month follows a pattern where the chance of sun dips slightly from the summer highs, as seen in June (99%) and August (88%). It is important to note that even though September experiences less sunshine compared to its summer predecessors, it still boasts a higher likelihood of sun when contrasted with the cooler months, like October (87%) and November (96%). This trend highlights September as a month where one can still enjoy significant sunshine, albeit with a hint of variability as the seasons shift.
As September rolls into Muscat, Oman, the city experiences a balance of sunlight with 12 hours of daylight. This marks a subtle transition from the longer, sun-drenched days of summer, where daylight stretches to 13 hours in June through August, to a gradual decrease as autumn approaches. The trend clearly showcases a shift from the peak luminosity of late spring and summer, hinting at the upcoming shorter days that characterize the later months of the year. Residents and visitors alike can relish the golden Mediterranean sun for a few more weeks before daylight dwindles to 11 hours in October, capturing the essence of a sun-soaked early autumn in this vibrant coastal city.
In September, the winds in Muscat, Oman maintain a gentle pace, with an average speed of 2.3 m/s (5 mph), mirroring the calmness of the preceding summer months. As the sweltering heat of summer recedes, this light breeze provides a welcome respite, creating a pleasant atmosphere for evening strolls along the waterfront. Notably, the wind speeds slightly picked up in July to 3.3 m/s, but have since stabilized, reflecting a consistent, tranquil end to the summer season. As October rolls in, wind speeds hover around the same mark, fostering a serene environment that invites both locals and visitors to revel in the beauty of Muscat's coastal charm.
Weather in Muscat varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Muscat, focusing on differences in temperature, rainfall, humidity, and UV levels.
September in Muscat is characterized by sweltering heat, with average temperatures reaching up to 32°C (90°F) and highs soaring to 42°C (107°F). The month experiences virtually no rainfall, contributing to a fixed humidity level of 49%. In stark contrast, January brings cooler temperatures, with averages around 21°C (70°F) and maximums of 30°C (86°F). This month sees some precipitation, albeit minimal at 11 mm (0.4 in) over just one day, while humidity remains quite similar at 48%. For a closer look at January’s climate, you can explore Muscat weather in January.
September and February present stark contrasts in weather. September boasts high temperatures, with a minimum of 26°C (80°F) and an average of 32°C (90°F), peaking at a scorching 42°C (107°F). In addition, this month sees no precipitation and maintains a humidity level of 49%. In contrast, February offers much cooler conditions, featuring a minimum temperature of 13°C (56°F) and an average of 22°C (72°F), with a maximum of 32°C (89°F). While February experiences a slight amount of precipitation, totaling 6 mm (0.2 in) over just one day, it also has a lower humidity level of 46%. For more insights, you can explore Muscat weather in February.
In September, Muscat experiences hot weather with minimum temperatures around 26°C (80°F) and peak averages reaching up to 42°C (107°F). The month is characterized by dry conditions, with no recorded precipitation and humidity levels at 49%. In contrast, March offers a more moderate climate, featuring minimum temperatures of 16°C (62°F) and maximums that can reach 38°C (100°F). While it remains warm, March sees slightly higher humidity at 43% and a small amount of precipitation (5 mm) on about one day of the month. For more details, check out Muscat weather in March.
September and April exhibit notable differences in weather patterns. In September, temperatures are generally warmer, with a minimum of 26°C (80°F) and an average high of 32°C (90°F), peaking at a sweltering 42°C (107°F). In contrast, April's temperatures are slightly cooler, with minimums of 21°C (70°F) and maximums reaching up to 40°C (104°F), alongside a lower average of 30°C (87°F). While both months experience minimal precipitation, September remains completely dry, while April records a slight 3 mm (0.1 in). Humidity levels also differ, with September at 49% compared to April's 42%. For more insights on April weather, check out Muscat weather in April.
In comparing the weather conditions of September and May, September tends to be slightly less humid with a humidity level of 49% compared to May's 47%. Both months experience high temperatures, but May generally boasts a higher average of 34°C (93°F) and can peak at a scorching 44°C (112°F). Additionally, September is drier, with no recorded precipitation, while May sees an occasional light rainfall, totaling 5 mm (0.2 in) over one day. For more specific insights on May weather patterns, you can view details at Muscat weather in May.
In comparing the weather of September and June, September offers slightly cooler temperatures, with a minimum of 26°C (80°F) and an average high of 32°C (90°F), contrasted with June's minimum of 29°C (85°F) and average high of 35°C (96°F). June tends to be hotter overall, reaching a maximum of 44°C (112°F), whereas September peaks at 42°C (107°F). Both months experience no precipitation, contributing to their dry conditions, but September boasts a marginally higher humidity level of 49% compared to June's 46%. For more detailed insights, you can visit Muscat weather in June.
In comparing the weather between September and July, September boasts slightly cooler temperatures, with a minimum of 26°C (80°F), an average of 32°C (90°F), and a maximum of 42°C (107°F). In contrast, July is generally hotter, featuring a minimum temperature of 29°C (84°F), an average of 35°C (95°F), and a peak of 44°C (111°F). Both months experience minimal precipitation, with July recording 1 mm (0.0 in) and September remaining completely dry at 0 mm (0.0 in). Humidity levels are quite similar, with September at 49% and July at 48%. For more details on the specifics of July’s weather, check out Muscat weather in July.
In comparing the weather between September and August, both months exhibit warm temperatures and low humidity, with a strikingly similar climate profile. September features a minimum temperature of 26°C (80°F) and an average of 32°C (90°F), while August starts slightly warmer with a minimum of 27°C (81°F) and an average of 33°C (92°F). The maximum temperatures are also quite comparable, with September reaching up to 42°C (107°F) and August peaking at 41°C (106°F). Notably, both months saw no recorded precipitation and maintained a consistent humidity level of 49%. For more detailed information on August's climate, you can check Muscat weather in August.
In September, the weather is characterized by hot temperatures, with a minimum of 26°C (80°F) and an average high of 32°C (90°F), reaching up to a scorching 42°C (107°F). The month experiences no rainfall, and humidity stands at 49%. In contrast, October sees a notable drop in temperature, with lows of 20°C (68°F) and an average of 29°C (85°F), peaking at a maximum of 37°C (100°F). Additionally, October brings some precipitation, with 10 mm (0.4 in) over just one day and slightly increased humidity at 54%. For more detailed insights, check Muscat weather in October.
In September, the weather is typically hot and dry, with average temperatures ranging from a minimum of 26°C (80°F) to a maximum of 42°C (107°F) and no recorded precipitation. The humidity is relatively low at 49%. In contrast, November sees a significant drop in temperature, with averages ranging from a minimum of 17°C (63°F) to a maximum of 34°C (93°F). There is a slight increase in humidity to 51%, and the month records a small amount of precipitation at 9 mm (0.3 in), although there are still no days of rain. For more details, you can check Muscat weather in November.
September weather is characterized by high temperatures, with a minimum of 26°C (80°F) and an average of 32°C (90°F), peaking at a scorching 42°C (107°F). In contrast, December brings a significant drop in temperature, with a minimum of 14°C (57°F), an average of 22°C (72°F), and a maximum reaching 31°C (88°F). While September boasts dry conditions with no recorded precipitation, December experiences a slight increase in moisture with 11 mm (0.4 in) of rainfall over just one day. Interestingly, both months share the same humidity level of 49%. For a detailed look at December's climate, check out Muscat weather in December.
September in Muscat showcases scorching summer temperatures that mark the tail end of a prolonged heatwave, making it distinct from the milder months that follow. With an average high of 42°C, the city basks under clear skies, experiencing no precipitation and maintaining a comfortable humidity level of 49%. This dry heat invites outdoor enthusiasts to enjoy the sun and sea before the milder autumn weather settles in. For more insights into Muscat's climate throughout the year, visit Muscat Climate.