September Weather in Port Alfred, South Africa

Last updated: August 31, 2025

In September, Port Alfred, South Africa experiences a delightful transition into spring, characterized by maximum temperatures reaching up to 32°C (89°F) and a pleasant average of 17°C (62°F). While the minimum temperatures can dip to 7°C (46°F), the climate remains generally refreshing. This month also witnesses about 36 mm (1.4 in) of rainfall spread over 6 days, contributing to the township's lush landscapes. With humidity levels sitting at a comfortable 79%, September in Port Alfred is a perfect time for outdoor exploration and enjoying the natural beauty of this coastal gem.

September Temperature in Port Alfred

September in Port Alfred, South Africa, ushers in a gentle transition from winter to spring, with temperatures reflecting this shift. The month sees minimums dipping down to a crisp 7°C (46°F) and averaging around 17°C (62°F), providing a refreshing feel after the cooler winter months. Daytime highs can reach a comfortable 32°C (89°F), maintaining a delightful warmth that encourages outdoor activities. As you step outside, you'll notice the gradual climb in temperatures from the preceding months, signaling the approach of warmer days ahead, while still enjoying the mildness characteristic of early spring. This blend of cool mornings and sunny afternoons creates an inviting atmosphere perfect for exploration and relaxation by the coast.

September Weather in Port Alfred: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Port Alfred, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port Alfred, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec727271676462615962646669
Data source: Temperature data for Port Alfred generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Port Alfred

In September, Port Alfred experiences a moderate shift in its precipitation patterns, receiving 36 mm (1.4 in) of rain over six days. This marks a slight uptick from the drier winter months of July and August, which recorded only 13 mm and 32 mm of rain respectively. The transition to spring is reflected in this increase, suggesting a gradual return to the wetter conditions typically seen in the upcoming months. As the region prepares for October's anticipated 45 mm (1.8 in), September serves as a gentle reminder of the seasonal changes ahead, balancing between residual winter dryness and the promise of rejuvenation that spring brings.

September Precipitation Trends in Port Alfred

The chart displays monthly precipitation patterns in Port Alfred, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Port Alfred, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec396351532115133236454859
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Port Alfred

In September, Port Alfred experiences a humidity level of 79%, maintaining a comfortable balance as the seasons transition. This figure aligns closely with the humidity levels of late winter, which hover around 72% to 77% in August and July, suggesting a gradual increase as spring approaches. The slight uptick in September sets the stage for the warmer months ahead, where humidity begins to rise consistently, peaking in March at 86%. This trend illustrates the coastal climate's characteristic ebb and flow, with humidity levels fluctuating between the high 70s and low 80s throughout the year, creating a pleasantly mild atmosphere perfect for enjoying outdoor activities.

September Average Humidity in Port Alfred

This chart illustrates the average monthly humidity levels in Port Alfred, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Port Alfred is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%86%85%84%79%77%72%79%77%78%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Port Alfred

As September rolls in, Port Alfred experiences a notable shift in its UV Index, peaking at 9, placing it in the very high exposure category. This marks a gradual increase from the moderate conditions of the past few months, signaling that residents and visitors should remain vigilant with sun protection measures, particularly during peak hours. With a burn time of just 15 minutes, it’s clear that the sun’s intensity is rising as spring approaches. Observing the trends from earlier months, September's UV levels align closely with what lies ahead in October, where the index increases slightly to 10. For those planning outdoor activities, it's essential to stay informed and take precautions—check out the details here: Port Alfred UV Index.

Maximum UV Index Levels in Port Alfred for September

The chart shows the monthly maximum UV Index (UVI) for Port Alfred in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Port Alfred typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311854469101214
Data source: Port Alfred September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Port Alfred

As September graces Port Alfred, South Africa, residents and visitors can bask in an impressive 322 hours of sunshine, signifying a delightful transition into spring. The month follows a pattern of sun-soaked days, with light peaking in summer as demonstrated by a notable ascent from 297 hours in May to a robust 359 hours in October. This gradual climb is evident throughout the year, where longer daylight hours paint a warm portrait of seasonal change. Notably, September’s brightness lays the groundwork for even sunnier days ahead, awakening the vibrant landscape and inviting outdoor adventures as nature comes alive.

Monthly Sunshine Duration in Port Alfred: September Highlighted

The September sunshine duration represents the total number of hours Port Alfred experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec321h333h347h301h297h277h298h309h322h359h370h392h
Data source: Port Alfred September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Port Alfred During September

In Port Alfred, South Africa, September experiences a 47% chance of sunny weather, placing it among the more unpredictable months in terms of sunshine. Following the peak of winter in July, which boasts a sunny probability of 76%, there is a noticeable decline as spring approaches. Although the chance of sun in September is higher than during the latter months of the year—like November (40%) and December (33%)—it still falls short compared to the more reliable sunny spells seen in late autumn, such as May (67%) and June (70%**). As the seasons transition, visitors can expect a mix of sun and clouds, making it an intriguing time for outdoor activities amidst the shifting weather patterns.

Percentage of Sunny Days in September in Port Alfred

The chart illustrates the percentage of sunny days in Port Alfred throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Port Alfred experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec46%49%47%43%67%70%76%66%47%50%40%33%
Data source: Port Alfred September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Port Alfred in September

As September unfolds in Port Alfred, South Africa, daylight begins its gradual ascent from the depths of winter, offering approximately 11 hours of sunlight. This marks a subtle yet uplifting shift from the shorter days of winter, where June and July saw only 9 to 10 hours of daylight. Following this progression, the days continue to lengthen, paving the way for the warmer spring months ahead. As October approaches, residents can look forward to emerging from the cool shadows, with daylight extending to 12 hours and signaling the vibrant energy of the season. This annual rhythm not only brightens the landscape but also invigorates the spirit of those who call this beautiful coastal town home.

Average Daylight Hours in Port Alfred for September

The chart illustrates the variation in daylight duration in Port Alfred throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 4m13h 16m12h 14m11h 12m10h 21m9h 56m10h 9m10h 54m11h 53m12h 55m13h 51m14h 19m
Data source: Port Alfred daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Port Alfred

As September rolls into Port Alfred, the refreshing coastal winds begin to pick up, boasting an average wind speed of 4.7 m/s (11 mph), matching the gusts seen earlier in January and July. This slight increase in wind intensity signals the transition into spring, reflecting a general upward trend that peaks in October, where wind speeds reach 5.3 m/s (12 mph). While the summer months offer gentler breezes, September brings a delightful balance, making it an ideal time for outdoor activities along the beautiful coastline. As the year progresses, these wind patterns reveal the unique seasonal rhythm of this vibrant location, keeping the air crisp and inviting.

Average September Wind Speed in Port Alfred

The chart displays monthly wind speed patterns in Port Alfred, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.74.54.84.04.03.74.74.34.7 m/s5.34.64.8
Data source: Port Alfred September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Port Alfred Compares to Other Months

Weather in Port Alfred varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Port Alfred, focusing on differences in temperature, rainfall, humidity, and UV levels.

In comparing the weather of September and January, it's clear that both months present warm temperatures, but with some distinct differences. September typically sees temperatures ranging from a minimum of 7°C to a maximum of 32°C, averaging around 17°C. With around 36 mm of precipitation over about 6 days and humidity levels at 79%, the month often feels quite pleasant.

Conversely, January offers slightly milder nights with a minimum temperature of 14°C and an average of 22°C, reaching up to a maximum of 33°C. While it has a bit more rainfall at 39 mm over 8 days, the humidity is also marginally higher at 80%. For more specific insights into January weather, you can visit Port Alfred weather in January. Overall, both months are characterized by warmth, but January leans towards higher humidity and slightly more precipitation.

In comparing the weather between September and February, September offers a cooler climate with temperatures ranging from a minimum of 7°C (46°F) to a maximum of 32°C (89°F) and an average of 17°C (62°F). It experiences relatively moderate precipitation of 36 mm (1.4 in) over about 6 days, with humidity sitting at 79%. In contrast, February tends to be warmer, boasting a minimum temperature of 15°C (59°F) and reaching up to 33°C (92°F), with an average temperature of 22°C (72°F). This month also sees increased rainfall, totaling 63 mm (2.5 in) over 9 days, while maintaining the same humidity level of 79%. For more detailed information on the weather during February, visit Port Alfred weather in February.

September and March exhibit notable differences in weather patterns. In September, temperatures range from a cool minimum of 7°C (46°F) to a warm maximum of 32°C (89°F), with an average of 17°C (62°F). The month experiences relatively low precipitation of 36 mm (1.4 in) over about six days and humidity sits at 79%. Conversely, March presents a warmer climate, with minimum temperatures at 13°C (56°F) and maximums reaching 38°C (101°F), averaging 21°C (71°F). Precipitation increases to 51 mm (2.0 in) over nine days, accompanied by slightly higher humidity at 86%. For a more detailed look at March's climate, check Port Alfred weather in March.

When comparing the weather in September and April, notable differences emerge. In September, temperatures range from a minimum of 7°C (46°F) to a maximum of 32°C (89°F), with an average of 17°C (62°F). The month sees approximately 36 mm (1.4 in) of precipitation over about 6 days, accompanied by a humidity level of 79%. In contrast, April experiences relatively warmer temperatures, featuring a minimum of 12°C (54°F) and a similar maximum of 32°C (90°F), with an average of 19°C (67°F). This month records higher rainfall, totaling around 53 mm (2.1 in) across 7 days, and slightly increased humidity at 85%. For a detailed look at the weather patterns in April, you can visit Port Alfred weather in April.

In comparing the weather between September and May, both months feature similar maximum temperatures reaching around 32°C (90°F), but September typically starts with cooler nights, with minimum temperatures dropping to 7°C (46°F), compared to May's 10°C (50°F). The average temperature in September is slightly lower at 17°C (62°F) than May's 18°C (65°F). Precipitation is more frequent in September, with 36 mm (1.4 in) of rain over about 6 days, while May receives only 21 mm (0.8 in) across 5 days. Humidity levels are also notable; September has an average of 79%, slightly lower than May's 84%. For more detailed insights, check Port Alfred weather in May.

In comparing the weather between September and June, both months offer mild average temperatures around 17°C (63°F), but there are notable differences in extremes and precipitation. September sees a broader temperature range, with a minimum of 7°C (46°F) and a maximum of 32°C (89°F), while June's temperatures are slightly more stable, ranging from 8°C (46°F) to a maximum of 30°C (87°F). Additionally, September experiences more precipitation, averaging 36 mm (1.4 in) over six days, compared to June's lighter 15 mm (0.6 in) over just two days. Despite the differences, humidity remains consistent at 79% for both months. For a closer look at the specific weather conditions during June, you can check out Port Alfred weather in June.

When comparing the weather between September and July, September tends to be warmer and slightly more humid. The average temperature in September reaches 17°C (62°F), while in July it averages at 16°C (61°F). Additionally, September experiences a higher maximum temperature of 32°C (89°F) compared to July’s 30°C (87°F). Precipitation levels also differ significantly, with September receiving 36 mm (1.4 in) over six days, whereas July sees only 13 mm (0.5 in) across two days. Interestingly, humidity levels are comparable, with September at 79% and July slightly lower at 77%. For more detailed insights, check out Port Alfred weather in July.

In comparing the weather of September to August, we notice a slight increase in average temperatures, with September boasting an average of 17°C (62°F) compared to August's 15°C (60°F). Both months share similar maximum temperatures, reaching up to 32°C (89°F) in September and 32°C (90°F) in August, indicating warm days. However, September experiences slightly more precipitation, with 36 mm (1.4 in) across 6 days, compared to August's 32 mm (1.3 in) over 5 days. Furthermore, humidity levels are higher in September at 79%, compared to 72% in August, contributing to a more humid feel. For more details on August weather patterns, check out Port Alfred weather in August.

In comparing the weather of September and October, we see a subtle shift in temperatures and precipitation patterns. September boasts a minimum temperature of 7°C (46°F), an average of 17°C (62°F), and a maximum of 32°C (89°F), with a total precipitation of 36 mm (1.4 in) over 6 days and a humidity level of 79%. In contrast, October experiences slightly milder temperatures, with a minimum of 9°C (48°F), an average of 18°C (64°F), and a maximum of 30°C (86°F). Additionally, October brings more rain, totaling 45 mm (1.8 in) over 7 days and a marginally lower humidity of 77%. For more detailed information about weather specifics in October, check out Port Alfred weather in October.

In September, the weather is characterized by a broader temperature range, with minimums dipping to 7°C (46°F) and maximums reaching up to 32°C (89°F), creating a warm average of 17°C (62°F). This month experiences relatively low precipitation at 36 mm (1.4 in) over about 6 days, while humidity is fairly high at 79%. In contrast, November sees slightly warmer temperatures, with minimums at 10°C (50°F) and maximums peaking at 35°C (95°F), resulting in a higher average of 19°C (66°F). However, November also brings increased rainfall, with precipitation rising to 48 mm (1.9 in) spread throughout 10 days, while humidity remains similar at 78%. For more detailed insights, you can check the following link: Port Alfred weather in November.

In September, the weather features a noticeable range in temperatures, with a minimum of 7°C (46°F) and an average of 17°C (62°F), peaking at 32°C (89°F). The month experiences relatively low precipitation levels of 36 mm (1.4 in) over about 6 days, combined with humidity at 79%. In contrast, December brings warmer conditions with minimum temperatures of 13°C (56°F) and an average of 20°C (69°F), reaching up to 33°C (92°F). However, December also sees increased rainfall, totaling 59 mm (2.3 in) across 11 days, while humidity slightly rises to 80%. For more detailed information, you can refer to Port Alfred weather in December.

Compare Port Alfred's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Port Alfred

As September rolls in at Port Alfred, the weather begins to shift, ushering in the transition from winter to the warmer spring months. Temperatures rise noticeably, leading to an inviting average of 17°C, with maximum highs reaching a delightful 32°C—perfect for outdoor activities. However, the month also sees its share of precipitation, with 36 mm of rain typically falling over about six days, contributing to a slightly humid atmosphere at 79%. This distinctive blend of warmth and occasional rain makes September a refreshing and dynamic month, setting the stage for the sunny days ahead. For a deeper understanding of what to expect throughout the year, check out the Port Alfred Climate.