Last updated: August 31, 2025
September in Simon's Town, South Africa, offers a delightful transition into spring, characterized by an average temperature of 15°C (59°F). Visitors can expect maximum temperatures of 24°C (75°F), making it an ideal time to explore the picturesque coastal scenery. However, be prepared for some occasional rainfall, with 50 mm (2.0 in) expected over 9 days, contributing to a humidity level of 76%. Whether you're strolling along the stunning beaches or enjoying the charming town, September's mild climate creates a refreshing backdrop for any adventure.
In September, Simon's Town begins to shake off the winter chill, ushering in the first hints of spring. With temperatures ranging from a minimum of 10°C (51°F) to a maximum of 24°C (75°F), the weather offers a refreshing transition for visitors and locals alike. The average temperature settles at a comfortable 15°C (59°F), inviting outdoor adventures and scenic strolls along the coast. As the month progresses, you can expect warmer days and cooler nights, mirroring the gradual rise in temperatures seen throughout previous months. This shift not only brings about a more vibrant atmosphere but also sets the stage for a delightful experience in this picturesque South African town.
In September, Simon's Town experiences a notable shift in its precipitation patterns, marking the transition from the colder months into spring. With 50 mm (2.0 in) of rainfall across approximately 9 days, this month sits somewhat below the heavier downpours of winter, yet still signifies a substantial moisture contribution to the region. Compared to previous months, like June and July, which brought in over 100 mm, September's precipitation is lighter, hinting at a gradual reduction in rainfall as the climate warms. This trend sets the stage for the drier months ahead, as October follows closely with 46 mm (1.8 in)—indicating a continued decline. Overall, September offers a balanced blend of rainfall, providing a perfect backdrop for early spring activities amidst the refreshing coastal atmosphere of Simon's Town.
In September, Simon's Town experiences a slight dip in humidity, dropping to a comfortable 76%. This marks the beginning of a gradual decline that continues into the months ahead. Following a summer of heightened moisture levels, where January and February peak at 77% and 80% respectively, the transition into early spring brings a refreshing relief. The trend suggests a continuous ebb in humidity, with levels hovering close to 75% by November, allowing residents and visitors to enjoy the breathtaking coastal scenery without the heaviness of summer's dew. As the seasons shift, Simon's Town reveals a rhythm of humidity that is both predictable and pleasant, making September an ideal time to savor the area's natural beauty.
In September, Simon's Town experiences a UV Index of 9, placing it in the very high exposure category, with a burn time of just 15 minutes. This marked a notable shift as summer approaches, following the moderate levels seen during the winter months. The trend indicates that UV radiation intensifies as the year progresses, with January and February reaching extreme levels of 14 and 13 respectively. As September bridges the gap between the cooler season and the peak summer months, it serves as a reminder for locals and visitors alike to remain vigilant about sun protection. For more detailed insights, visit Simon's Town UV Index.
UV Risk Categories
As the calendar turns to September, Simon's Town, South Africa, greets the month with a delightful 326 hours of sunshine, setting the stage for the spring season ahead. This amount of sunlight reflects a gradual increase as the year progresses, particularly when compared to the cooler winter months of June and July, which see much less sun at just 264 and 284 hours, respectively. September's sunshine heralds a shift towards the more brilliant days of October and November, where the hours soar to 371 and 389, showcasing the region's transition into a more vibrant and warm climate. This upward trend in sunlight not only invigorates the spirit but also invites outdoor exploration, making it a perfect time to enjoy the stunning coastal views and rich biodiversity that Simon's Town has to offer.
In Simon’s Town, South Africa, September offers a moderate chance of sunny weather, with approximately 55% likelihood of sunshine. This marks a noticeable decline from the peak sunny months of January and February, where chances exceed 77%. As winter wanes and spring approaches, September's sun probability aligns closely with the preceding months of June, July, and August, which all hover around the mid-50s percentage. While September might not boast the brightest days, it is a time of transition, hinting at the warmer, sunnier days that October will bring. Thus, visitors can expect a mix of pleasant weather, perfect for exploring this stunning coastal town.
As September rolls into Simon's Town, South Africa, daylight begins to lengthen once again, offering 11 hours of sunlight—a delightful shift following the winter months. The gradual increase in daylight from just 9 hours in June to 10 hours in July and August suggests a comforting transition towards the warmer months ahead. This month marks a pivotal point as the days start to grow longer, foreshadowing the 12 hours of daylight that will greet October. With each passing day in September, residents and visitors alike can enjoy more time under the invigorating Southern Hemisphere sun, as nature prepares for the vibrant spring season.
As September rolls into Simon's Town, the winds begin to pick up, averaging 7.3 m/s (16 mph), just slightly below the highs of the summer months. This bump in wind speed signals a transition from the milder breezes of winter, which were around 5.8 m/s (13 mph) in August, to the refreshing gusts that characterize the spring. Following the trend of September, the winds gradually begin to taper slightly in October, settling at 7.1 m/s (16 mph) before dipping again in November. Overall, September presents a delightful blend of invigorating winds, perfect for sailing and enjoying the stunning coastal vistas, as nature shifts gears toward the warmer months ahead.
Weather in Simon's Town varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Simon's Town, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, temperatures range from a cool 10°C (51°F) at night to a pleasant 24°C (75°F) during the day, with an average temperature of 15°C (59°F). This month also sees about 50 mm (2.0 in) of rainfall spread across 9 days, contributing to a humidity level of 76%. In contrast, January offers milder temperatures, with minimums of 16°C (61°F), averages of 19°C (67°F), and maximums reaching 23°C (74°F). Rainfall is significantly lower in January, with only 14 mm (0.6 in) over just 2 days, and humidity remains relatively high at 77%. For more detailed insights, check out Simon's Town weather in January.
In comparing the weather of September and February, we see notable differences in temperature and precipitation patterns. September presents cooler conditions, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 24°C (75°F), while February enjoys slightly warmer averages, with temperatures starting at 16°C (61°F) and peaking at the same 24°C (75°F). Precipitation levels in September are significantly higher, totaling 50 mm (2.0 in) over 9 days, compared to a mere 11 mm (0.4 in) across just 2 days in February. Humidity is also slightly elevated in February at 80%, while September remains at 76%. Overall, February feels warmer and drier, making it a pleasant time to visit. For more details, check out Simon's Town weather in February.
In comparing the weather between September and March, we see distinct differences in both temperature and precipitation. September features a lower temperature range, with a minimum of 10°C (51°F) and an average of 15°C (59°F), compared to March's milder minimum of 14°C (58°F) and average of 18°C (65°F). Both months share a maximum temperature of 24°C (75°F). However, September experiences more rainfall, with 50 mm (2.0 in) over 9 days, while March has only 29 mm (1.2 in) over 4 days. Additionally, March has slightly higher humidity at 81% compared to September's 76%. For a detailed look at March weather in Simon's Town, visit Simon's Town weather in March.
In comparing September and April weather, September tends to be cooler with average temperatures ranging from 10°C (51°F) to a maximum of 24°C (75°F), while April features slightly warmer conditions, with temperatures averaging between 12°C (54°F) and 27°C (81°F). Additionally, September experiences more precipitation, with about 50 mm (2.0 in) over 9 days, compared to April's 32 mm (1.3 in) falling over just 5 days. Humidity levels are relatively close, with September at 76% and April slightly higher at 80%. For more detailed information, you can check out Simon's Town weather in April.
In September, the weather features a minimum temperature of 10°C (51°F) and an average of 15°C (59°F), reaching a maximum of 24°C (75°F). With a total precipitation of 50 mm (2.0 in) over 9 days and a humidity level of 76%, the month typically offers a mild yet somewhat wet experience. In contrast, May presents slightly warmer temperatures, starting from a minimum of 11°C (52°F), averaging 16°C (61°F), and peaking at 21°C (71°F). Although May sees a higher precipitation amount of 74 mm (2.9 in) across 8 days, the humidity is marginally higher at 78%. For a more detailed look at the weather in May, you can check Simon's Town weather in May.
When comparing the weather in September to that of June, both months exhibit similar minimum temperatures around 10°C (51°F) and average temperatures hovering close to 15°C. However, September tends to be warmer overall, with a maximum temperature reaching 24°C (75°F), compared to June's maximum of 21°C (70°F). Precipitation levels are also notably different; June experiences significantly more rain, with 109 mm (4.3 in) over 11 days, while September receives only 50 mm (2.0 in) across 9 days. Additionally, humidity levels remain fairly high in both months, with September at 76% and June slightly higher at 79%. For more detailed information on the weather during June, you can check Simon's Town weather in June.
In comparing the weather of September and July, September generally offers warmer temperatures, with an average of 15°C (59°F) compared to July's average of 14°C (58°F). Both months see a minimum temperature of 10°C (50°F), but September can peak at a higher maximum of 24°C (75°F), whereas July's maximum is 21°C (70°F). When it comes to precipitation, July is notably wetter, receiving 95 mm (3.7 in) of rain over 10 days, while September sees less rain at 50 mm (2.0 in) across 9 days. Humidity levels are slightly lower in September at 76%, compared to July's 80%. For more details on July's climate, check Simon's Town weather in July.
In comparing the weather of September and August, September experiences slightly warmer temperatures with an average of 15°C (59°F) and a maximum of 24°C (75°F), compared to August's average of 14°C (57°F) and maximum of 22°C (71°F). While September has a minimum temperature of 10°C (51°F), August is marginally cooler at 9°C (48°F). Precipitation is notably lower in September, totaling 50 mm (2.0 in) over 9 days, whereas August sees 82 mm (3.2 in) over 12 days, making it a wetter month. Humidity levels remain relatively similar, with September at 76% and August at 77%. For a detailed view of August's weather, you can check Simon's Town weather in August.
September sees a wider temperature range with minimums of 10°C (51°F) and maximums reaching up to 24°C (75°F), offering an average temperature of 15°C (59°F). The month experiences around 50 mm (2.0 in) of precipitation over 9 days, with humidity levels at 76%. In contrast, October has slightly milder temperatures, with minimums of 12°C (54°F) and average temperatures climbing to 16°C (61°F), while the maximum stays a bit lower at 22°C (72°F). Precipitation decreases slightly to 46 mm (1.8 in) over just 6 days, and humidity levels rise modestly to 77%. Overall, October is characterized by warmer nights and slightly less rainfall compared to September. For more details, check out Simon's Town weather in October.
In comparing September and November weather, September exhibits slightly cooler temperatures with a minimum of 10°C (51°F) and an average of 15°C (59°F), while November sees a marginally warmer minimum temperature of 11°C (53°F) and an average of 17°C (63°F). Although November's maximum temperature of 22°C (72°F) is a bit lower than September's peak of 24°C (75°F), it experiences less precipitation, with only 35 mm (1.4 in) over 5 days compared to September's 50 mm (2.0 in) across 9 days. Humidity levels remain fairly consistent, with September at 76% and November slightly lower at 75%. For more detailed information, you can check Simon's Town weather in November.
In September, the weather typically features a temperature range from a chilly 10°C (51°F) to a pleasant maximum of 24°C (75°F), with an average of 15°C (59°F). The month experiences about 50 mm (2.0 in) of precipitation over 9 days, coupled with a humidity level of 76%. By contrast, December showcases slightly warmer temperatures, with a minimum of 15°C (59°F), an average of 18°C (65°F), and a maximum of 23°C (73°F). The precipitation in December drops to 28 mm (1.1 in) across just 6 days, while humidity remains relatively stable at 77%. For more details on the December climate, you can check Simon's Town weather in December.
As September rolls in, Simon's Town experiences a refreshing transition into spring, marked by mild temperatures and a welcome increase in humidity. With an average temperature hovering around 15°C, it's noticeably cooler than the warmer months ahead, offering a pleasant respite from the summer heat. Although 50 mm of rain falls over approximately 9 days, these occasional showers contribute to the lush scenery as the town awakens from winter's grip. If you're looking to understand how the weather patterns evolve throughout the year, check out Simon's Town Climate for more insights.