Last updated: August 31, 2025
In September, Arniston, South Africa, experiences a delightful transition into spring, characterized by maximum temperatures reaching 30°C (85°F) and a pleasant average of 15°C (60°F). While the humidity hovers around a comfortable 77%, residents and visitors can anticipate occasional light rain, with precipitation totaling 34 mm (1.4 in) spread over 7 days. The minimum temperature dips to a cool 10°C (51°F), making it an ideal time for outdoor activities amidst blooming landscapes and refreshing coastal breezes. Enjoy the beauty and variability of this charming coastal town as the season unfolds!
In September, Arniston begins to shake off the chill of winter, as temperatures start to rise, creating a welcoming atmosphere for locals and visitors alike. The month features a minimum temperature of around 10°C (51°F), gradually warming to an average of 15°C (60°F) and peaking at a maximum of 30°C (85°F). This upward trend not only showcases the transition from cooler to warmer weather but also hints at the arrival of spring. With warm days on the horizon, September is the perfect time to enjoy the beauty of Arniston, where the changing temperatures invite exploration and outdoor activities.
September in Arniston, South Africa, experiences a moderate precipitation level with 34 mm (1.4 in) of rainfall over roughly 7 days. This marks a slight decrease from the wetter months of August, which boasts the highest rainfall of 53 mm (2.1 in) over 11 days. The trend suggests a gradual transition towards drier conditions as the region moves into the latter part of the year. While September's rainfall is less than some of the preceding months, it still contributes significantly to the overall annual average. This blend of moderate precipitation and the onset of spring makes September a refreshing time for both local flora and the community, always eagerly anticipating the changing seasons.
In September, Arniston experiences a slight dip in humidity, averaging around 77%. This marks a continuation of a gradual decline from the 76% humidity noted in August, as the region transitions from the winter months into spring. Overall, the past months show a tendency towards lower humidity levels, peaking during the summer with January's 79% and February's 82%, followed by a steady decrease throughout the winter. September’s humidity reflects this general trend, hinting at a more comfortable atmosphere as the climate begins to warm up, while still maintaining a notable moisture in the air. As the season progresses into October, a mild increase back to 79% is anticipated, promising a refreshing balance between humidity and warmth in the vibrant coastal town of Arniston.
As September approaches in Arniston, South Africa, the UV Index begins to rise, reflecting the transition from winter to spring. With a UV Index of 9, categorized as very high, locals and visitors should be mindful of sun exposure, as burn time is reduced to 15 minutes. This uptick in UV levels continues the trend observed from previous months, where the Index fluctuated between moderate and very high values. Following the relatively comfortable winter months, this surge emphasizes the need for precautionary measures as longer days and clearer skies set in. As summer looms, it's essential to stay informed about UV exposure to ensure safety under the sun. For detailed insights and updates, check the Arniston UV Index.
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As the winter chill begins to wane, September in Arniston, South Africa, brings a delightful surge of sunshine, with 325 hours of radiant light illuminating the landscape. This month serves as a delightful transition, showcasing a gradual recovery from the cooler, darker winter months where sunlight dipped to a low of 269 hours in June. The trend is evident, with September’s hours approaching the warmth of summer, which peaks in December with a remarkable 413 hours of sunshine. The gradual increase in sunlight from the cooler months hints at the forthcoming vibrant days, enticing locals and visitors alike to embrace the beauty of the changing season in this coastal gem.
As the seasons shift in Arniston, South Africa, September brings a mild likelihood of sunny weather, with only a 49% chance of sunshine gracing the skies. This figure reflects a gradual decline from the peak sunshine months of January and February, which enjoy 58% and 60% chances, respectively. Following that summer high, the chances dip further in the cooler months, with September's forecast paralleling October, hinting at the onset of cloudier days as spring approaches. As such, while September may not promise an abundance of sunshine, it does offer a comforting transition as the days gradually warm, inviting locals and visitors alike to embrace the beauty of the changing season.
In September, Arniston, South Africa, enjoys 11 hours of daylight, marking a gradual transition from the shorter days of winter into the longer, sun-drenched days of spring. Following the deep winter months, where daylight dipped to as low as 9 hours in June, there's a welcoming increase in light as the seasons shift. This renewal of daylight sets the stage for more outdoor activities and exploration, as the extended hours continue to rise towards December's peak of 14 hours. As autumn approaches, daylight duration will oscillate gradually, embracing longer and brighter days that invite both locals and visitors to relish in the stunning natural beauty of this coastal gem.
As September arrives in Arniston, South Africa, the winds pick up slightly, averaging 5.8 m/s (13 mph)—a modest rhythm that echoes the transition into spring. This month marks a subtle resurgence in wind speeds following the milder gusts of winter, hinting at the upcoming breezy days of October, which typically sees an increase to 6.4 m/s (14 mph). Throughout the year, the wind patterns reveal a gentle ebb and flow; while January boasts the highest speeds at 6.8 m/s (15 mph), the trend shows a gradual taper as we move into the colder months. However, September stands out for maintaining a steady pace, perfectly capturing the essence of the changing season and setting the stage for the lively winds of early spring.
Weather in Arniston varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Arniston, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather exhibits a broader temperature range with minimums of 10°C (51°F) and maximums reaching up to 30°C (85°F), resulting in an average of 15°C (60°F). The month experiences a moderate amount of rainfall, totaling 34 mm (1.4 in) over 7 days and maintains a humidity level of 77%. In contrast, January offers milder temperatures, with a minimum of 16°C (61°F) and a maximum of 26°C (80°F), averaging at a comfortable 21°C (70°F). The precipitation in January is lighter, at 26 mm (1.0 in) over just 5 days, and the humidity slightly increases to 79%. For more detailed information, you may refer to Arniston weather in January.
September and February present distinct weather patterns. In September, temperatures range from a minimum of 10°C (51°F) to a maximum of 30°C (85°F), with an average of 15°C (60°F). This month sees a fair amount of precipitation, totaling 34 mm (1.4 in) over about 7 days, accompanied by a humidity level of 77%. In contrast, February experiences milder temperatures that are generally warmer, with a minimum of 16°C (62°F), an average of 21°C (70°F), and a maximum of 26°C (80°F). Precipitation is less frequent, totaling only 18 mm (0.7 in) across 5 days, while humidity slightly increases to 82%. For more specific insights into February weather, you can visit Arniston weather in February.
In comparing the weather of September and March, we see notable differences in temperature and humidity. September features a wider temperature range, with minimums dropping to 10°C (51°F) and maximums reaching up to 30°C (85°F), while March maintains milder conditions, with temperatures ranging from 15°C (60°F) to 27°C (80°F). Moreover, March tends to be slightly wetter, receiving 43 mm (1.7 in) of precipitation over six days, compared to September’s 34 mm (1.4 in) over seven days. The humidity also rises slightly in March to 83%, up from 77% in September. For more detailed insights on the weather during this month, visit Arniston weather in March.
When comparing the weather in September and April, we see some notable differences. September experiences a wider temperature range, with minimum temperatures dipping to 10°C (51°F) and maximums reaching up to 30°C (85°F), while April's temperatures are generally milder, ranging from a minimum of 14°C (57°F) to a maximum of 28°C (83°F).
In terms of precipitation, September receives slightly more rain, totaling 34 mm (1.4 in) over approximately 7 days, compared to April's 23 mm (0.9 in) over 6 days. Humidity levels are also relatively high, with September at 77% and April slightly higher at 82%. For a more detailed look at the climate conditions in April, you can visit Arniston weather in April.
When comparing the weather in September and May, we see some key differences. September typically experiences slightly cooler temperatures, with averages around 15°C (60°F) and maximums reaching 30°C (85°F), while May has a warmer average of 17°C (62°F) and maximums of 28°C (82°F). Precipitation in May is generally higher, with about 50 mm (2.0 in) over 5 days compared to September's 34 mm (1.4 in) over 7 days. Both months exhibit high humidity, with September at 77% and May at 78%, making them relatively humid periods in the region. For more details, you can visit Arniston weather in May.
In comparing the weather of September and June, both months experience similar average temperatures, with September ranging from a minimum of 10°C (51°F) to a maximum of 30°C (85°F) and June having slightly cooler temperatures of 9°C (49°F) to 25°C (77°F). While September enjoys a wider temperature swing and warmer highs, June is characterized by slightly higher precipitation levels at 45 mm (1.8 in) over 8 days compared to September's 34 mm (1.4 in) over 7 days. Both months share the same humidity level of 77%, creating a consistent, damp feeling in the air. For more detailed insights, you can check out Arniston weather in June.
When comparing the weather in September and July, September tends to be warmer with an average temperature of 15°C (60°F), while July has a slightly cooler average of 14°C (58°F). September sees a maximum temperature rise to 30°C (85°F), compared to July's peak of 25°C (77°F). In terms of precipitation, July experiences slightly more rain with 45 mm (1.8 in) over 7 days, compared to September's 34 mm (1.4 in) over the same number of days. Humidity levels are similar in both months, with September at 77% and July at 78%. For more detailed information on July weather, check out Arniston weather in July.
When comparing the weather in September to that of August, September generally experiences warmer temperatures, with a minimum of 10°C (51°F) and a maximum of 30°C (85°F), compared to August's minimum of 8°C (47°F) and maximum of 25°C (77°F). The average temperature in September rises to 15°C (60°F), slightly above August's average of 14°C (57°F). Additionally, September sees less precipitation, totaling 34 mm (1.4 in) over 7 days, while August is wetter with 53 mm (2.1 in) over 11 days. Humidity levels remain quite comparable, with September at 77% and August at 76%. For a more detailed look at August's climate, check out Arniston weather in August.
September's weather typically features a minimum temperature of 10°C (51°F) and an average temperature of 15°C (60°F), with maximum highs reaching up to 30°C (85°F). The month sees around 34 mm (1.4 in) of precipitation over about 7 days, accompanied by a humidity level of 77%. In contrast, October experiences slightly milder conditions, with minimum temperatures of 11°C (53°F) and an average of 17°C (62°F). The maximum temperature drops a bit to 28°C (82°F), while precipitation remains similar at 33 mm (1.3 in) over the same 7 days. Humidity increases slightly to 79%, creating a slightly more humid atmosphere. For more detailed information, check out Arniston weather in October.
September and November both experience mild weather, but with some notable differences. In September, temperatures range from a minimum of 10°C (51°F) to a maximum of 30°C (85°F), with an average of 15°C (60°F). The month also sees approximately 34 mm (1.4 in) of precipitation over 7 days, accompanied by a relatively high humidity level of 77%. In contrast, November enjoys slightly warmer temperatures with a minimum of 12°C (54°F) and a maximum of 25°C (77°F), averaging 18°C (64°F). The precipitation remains similar at 35 mm (1.4 in) but occurs over just 6 days, while humidity stays steady at 77%. For more details on the weather during this month, you can check Arniston weather in November.
In September, weather conditions are warmer, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 30°C (85°F), and an average of 15°C (60°F). The month experiences about 34 mm (1.4 in) of rainfall over approximately 7 days, accompanied by a humidity level of 77%. In contrast, December presents milder temperatures, with a minimum of 15°C (59°F), an average of 19°C (67°F), and a maximum of 25°C (78°F). Precipitation decreases slightly to 30 mm (1.2 in) over 6 days, with humidity rising slightly to 79%. This makes December a more pleasant and stable month for outdoor activities. For further details, you can check out Arniston weather in December.
As September unfolds in Arniston, the weather presents a delightful shift that sets the stage for spring's arrival. With maximum temperatures reaching a pleasant 30°C, the month often brings a refreshing warmth that invites outdoor activities. The average of 15°C ensures mild conditions, while the occasional rainfall—averaging about 34 mm across just 7 days—adds a touch of vitality to the landscape. Compared to the hotter peak summer months, September offers a more temperate climate with a notable humidity level of 77%, making it a perfect time for both locals and visitors to enjoy the natural beauty of the area. Explore more about the unique weather patterns of Arniston throughout the year at Arniston Climate.