August Weather in Hermanus, South Africa

Last updated: August 31, 2025

In Hermanus, South Africa, August offers a refreshing coastal climate with maximum temperatures reaching 23°C (73°F) and an average of 13°C (56°F). Visitors can expect cooler evenings, with minimum temperatures dipping to 7°C (45°F). This month typically sees about 77 mm (3.0 in) of rainfall spread over 11 days, contributing to a humidity level of 77%. The combination of mild temperatures and occasional showers creates a unique atmosphere, ideal for exploring the region's stunning natural beauty and vibrant marine life.

August Temperature in Hermanus

In Hermanus, South Africa, August presents a noticeable shift as winter begins to fade, with temperatures gradually warming up. This month marks the coolest point of the year, featuring a minimum temperature of 7°C (45°F) and an average of 13°C (56°F), making it a crisp yet refreshing time for visitors. Despite the chill, the maximum temperature can still reach 23°C (73°F), allowing for pleasant afternoons. As the days get longer and warmer, locals and tourists alike can expect to enjoy the scenic beauty of this coastal city, hinting at the arrival of spring just around the corner. Thus, while August is characterized by cooler temperatures compared to the preceding months, it ushers in a promise of brighter days ahead.

August Weather in Hermanus: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Hermanus, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hermanus, August 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).
JanFebMarAprMayJunJulAugSepOctNovDec686966636159575658616366
Data source: Temperature data for Hermanus 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.

August Precipitation in Hermanus

In August, Hermanus experiences a notable transition as winter gradually gives way to spring. With an average precipitation of 77 mm (3.0 in) falling over 11 days, it's a period characterized by consistent rainfall. This monthly total is slightly lower than the preceding months of June and July, which saw peaks of 84 mm and 80 mm, respectively. However, August still maintains a significant level of moisture, contributing to the region's lush landscapes. As the days slowly lengthen and temperatures begin to rise, the combination of ample rainfall and emerging sunshine sets the stage for vibrant spring growth, marking a dynamic shift in the local climate.

August Precipitation Trends in Hermanus

The chart displays monthly precipitation patterns in Hermanus, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Hermanus, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec231731257584807746484128
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Hermanus

In Hermanus, South Africa, August marks the tail end of winter with a humidity level of 77%, mirroring the conditions typically found in January and October. The data suggests a consistent humidity pattern throughout the year, peaking in early months like February, when it reaches 80%. Following a slight decrease in September to 76%, the humidity remains relatively stable, hovering between 75% and 81% from February to May. This gentle fluctuation indicates that while the winter months may feel slightly drier, the overall humidity levels in Hermanus create a refreshing coastal atmosphere that is characteristic of this beautiful region.

August Average Humidity in Hermanus

This chart illustrates the average monthly humidity levels in Hermanus, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Hermanus is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%80%81%80%78%79%80%77%76%77%75%78%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Hermanus

In August, Hermanus experiences a UV Index of 6, categorized as high, with a burn time of around 25 minutes. As winter transitions to spring, this slight increase reflects the trend of rising UV levels from the previous months. Compared to the lower indices of June (3) and July (4), August starts to hint at the intensifying sun typical of the upcoming summer, though it remains below the extremes seen in the peak months of January and February, which boast indices of 14 and 13, respectively. This suggests that while UV radiation is becoming more potent, there is still time for residents and visitors to enjoy the outdoors with a bit of caution. For more detailed information on UV exposure, check out Hermanus UV Index.

Maximum UV Index Levels in Hermanus for August

The chart shows the monthly maximum UV Index (UVI) for Hermanus in August, 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 August, the maximum UV index in Hermanus typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311853469111214
Data source: Hermanus August 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.

August Sunshine in Hermanus

August in Hermanus, South Africa, welcomes visitors with 308 hours of radiant sunshine, setting the stage for a delightful month. This marks a slight increase from the cooler, cloudier winter months of June and July, which offered only 267 and 287 hours respectively. As the year progresses toward spring, sunlight begins to outshine the preceding months, paving the way for the higher totals seen in September and October. Notably, November and December boast impressive averages of 390 and 421 hours, suggesting that while August may not hit peak sunlit heights, it is certainly a harbinger of the vibrant, sun-soaked days that lie ahead. With each passing month, the gradual rise in sunshine creates an inviting atmosphere for outdoor activities and exploration in this beautiful coastal town.

Monthly Sunshine Duration in Hermanus: August Highlighted

The August sunshine duration represents the total number of hours Hermanus experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec337h356h352h311h291h267h287h308h328h372h390h421h
Data source: Hermanus August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hermanus During August

In Hermanus, South Africa, the likelihood of sunny weather in August stands at 52%, placing it on par with the sunnier end of winter but still just below the mid-year peak. January and February bask in significantly higher probabilities of sun, boasting 65% and 67% respectively, while the late summer months tend to see more favorable conditions. As winter transitions into spring, August shows a slight uptick from previous months like April and May, which hover around the 49-50% mark. Though August doesn’t promise entirely clear skies, it offers a refreshing blend of mild temperatures and occasional sunny breaks—perfect for outdoor enthusiasts looking to enjoy the beauty of this coastal gem.

Percentage of Sunny Days in August in Hermanus

The chart illustrates the percentage of sunny days in Hermanus throughout the year, with August 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 Hermanus experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec65%67%49%49%50%58%58%52%51%51%47%46%
Data source: Hermanus August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hermanus in August

In Hermanus, South Africa, the month of August witnesses a daylight duration of approximately 10 hours, maintaining the same length as July. This period marks a transition as daylight begins to gradually increase, following the shortest days of winter. After August, the days stretch further, with September offering an extra hour, reflecting a steady climb in sunlight as the region approaches spring. This rhythmic pattern showcases the seasonal shift, where winter's retreat gives way to longer, brighter days ahead, enhancing the outdoor experiences that Hermanus is renown for.

Average Daylight Hours in Hermanus for August

The chart illustrates the variation in daylight duration in Hermanus throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 8m13h 18m12h 15m11h 11m10h 18m9h 52m10h 5m10h 52m11h 53m12h 57m13h 54m14h 24m
Data source: Hermanus daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Hermanus

In August, Hermanus experiences a gentle breeze with an average wind speed of 4.6 m/s (10 mph), marking a slight dip compared to the stronger gusts of the prior winter months. As the region transitions from July's brisk 5.2 m/s (12 mph), this moderate wind contributes to the mild ambiance that heralds the early signs of spring. Observing the annual trend, the wind speeds gradually fluctuate, peaking in January at 5.8 m/s before dipping towards the winter months, only to rise again in spring. August's winds epitomize a delicate balance in nature, as they carry the warmth of the approaching spring season while gently cooling the lingering effects of winter.

Average August Wind Speed in Hermanus

The chart displays monthly wind speed patterns in Hermanus, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.85.25.44.34.44.55.24.6 m/s5.25.45.25.9
Data source: Hermanus August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Hermanus Compares to Other Months

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

When comparing the weather in August and January, a notable difference in temperature can be observed. In August, the temperatures range from a minimum of 7°C (45°F) to a maximum of 23°C (73°F), with an average of 13°C (56°F). In contrast, January experiences warmer conditions, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 29°C (84°F) and an average of 20°C (69°F). Precipitation also varies significantly; August sees about 77 mm (3.0 in) of rain over 11 days, whereas January has a much drier climate with only 23 mm (0.9 in) of rain over 5 days. Interestingly, both months maintain a similar humidity level of 77%. For more detailed information, you can check Hermanus weather in January.

Comparing the weather in August and February reveals distinct differences in temperature and precipitation. August experiences cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 23°C (73°F), while February enjoys warmer weather, with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 29°C (84°F). Additionally, August sees more rainfall, accumulating 77 mm (3.0 in) over 11 days, compared to February’s lighter 17 mm (0.7 in) across just 5 days. Despite the increased rainfall in August, February maintains slightly higher humidity at 80%, compared to August’s 77%. For more insights into February's pleasant climate, check out Hermanus weather in February.

August and March demonstrate distinct weather characteristics that reflect the transition between seasons. In August, temperatures range from a cool minimum of 7°C (45°F) to a maximum of 23°C (73°F), with an average of 13°C (56°F). This month experiences more precipitation, totaling 77 mm (3.0 in) over 11 days, and maintains a high humidity level of 77%. In contrast, March showcases warmer conditions with minimum temperatures around 14°C (58°F) and maximums reaching 27°C (81°F), averaging 19°C (67°F). Precipitation in March is considerably lower at 31 mm (1.2 in), occurring over 6 days, while humidity is slightly higher at 81%. For a detailed overview of March weather, you can visit Hermanus weather in March.

When comparing the weather in August and April, significant differences emerge. August experiences cooler temperatures, with a minimum of 7°C (45°F) and an average of 13°C (56°F), while April offers much warmer conditions, with a minimum of 12°C (54°F) and an average of 17°C (64°F) that can peak at 30°C (86°F). In terms of precipitation, August is wetter, averaging 77 mm (3.0 in) over 11 days compared to April's 25 mm (1.0 in) across just 6 days. Despite the relatively high humidity in both months—77% in August and 80% in April—April tends to feel warmer and sunnier. For more details, you can check Hermanus weather in April.

In comparing the weather of August and May, we see notable differences in temperature and precipitation patterns. August experiences cooler temperatures, ranging from a minimum of 7°C (45°F) to a maximum of 23°C (73°F), with an average of 13°C (56°F). In contrast, May tends to be warmer, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 28°C (83°F), and an average of 16°C (61°F). Both months have similar levels of precipitation, with August receiving about 77 mm (3.0 in) over 11 days, while May has slightly less at 75 mm (2.9 in) but only over 6 days. Humidity levels are similar in both months, hovering around 77% in August and 78% in May, making the climate feel quite damp overall. For more detailed information, you can check Hermanus weather in May.

When comparing the weather in August and June, we see that June tends to be slightly warmer, with average temperatures ranging from a minimum of 9°C to a maximum of 23°C, compared to August's 7°C to 23°C. Both months have similar maximum temperatures, but August generally feels cooler due to its lower average temperature of 13°C versus June's 15°C. Precipitation is also a factor; June receives a total of 84 mm over about 10 days, while August has 77 mm over roughly the same number of days. Humidity levels are similar as well, with June at 79% and August at 77%. For more details on June weather, you can check Hermanus weather in June.

In comparing the weather of August and July, we notice a slight variation in temperatures and precipitation patterns. August experiences a minimum temperature of 7°C (45°F) and an average of 13°C (56°F), while July is a bit warmer with a minimum of 9°C (48°F) and an average of 14°C (57°F). Both months have similar maximum temperatures, peaking at around 23°C (73°F) in August and 23°C (74°F) in July. When it comes to precipitation, August sees 77 mm (3.0 in) over 11 days, which is slightly less than July’s 80 mm (3.1 in) over 9 days. Humidity levels are also comparable, with August at 77% and July at 80%. For more detailed insights, you can check Hermanus weather in July.

August and September in Hermanus exhibit notable differences in weather conditions. In August, temperatures range from a chilly minimum of 7°C (45°F) to a mild maximum of 23°C (73°F), with an average temperature of 13°C (56°F). The month sees significant rainfall, averaging 77 mm (3.0 in) over 11 days, while humidity remains high at 77%.

Conversely, September brings slightly warmer temperatures, with a minimum of 9°C (48°F), an average of 15°C (59°F), and a maximum that reaches up to 28°C (83°F). Precipitation decreases to 46 mm (1.8 in) across just 8 days and humidity drops slightly to 76%. For more detailed information on weather conditions during this month, visit Hermanus weather in September.

In comparing the weather between August and October, it’s clear that October experiences generally warmer temperatures, with a minimum of 11°C (52°F) compared to August's 7°C (45°F). The average temperature in October is also higher at 16°C (61°F), while August sits at around 13°C (56°F). Interestingly, October can reach a maximum of 28°C (83°F), which is significantly warmer than August's peak of 23°C (73°F). Additionally, October sees less precipitation with 48 mm (1.9 in) falling over 8 days, contrasting with August’s 77 mm (3.0 in) over 11 days. Both months share a humidity level of 77%, making the air feel consistently moist. For a more detailed overview, you can check out Hermanus weather in October.

In August, the weather features cooler temperatures with a minimum of 7°C (45°F) and an average of 13°C (56°F), reaching up to a maximum of 23°C (73°F). This month also sees more precipitation, averaging 77 mm (3.0 in) over about 11 days, accompanied by higher humidity at 77%. In contrast, November enjoys warmer temperatures with a minimum of 11°C (52°F) and an average of 17°C (63°F), peaking at 25°C (78°F). Additionally, November experiences significantly less rainfall, totaling 41 mm (1.6 in) across just 7 days, with humidity slightly lower at 75%. For more specific details about conditions in November, you can explore Hermanus weather in November.

In contrast to August, which experiences cooler temperatures ranging from a minimum of 7°C (45°F) to a maximum of 23°C (73°F) with an average of 13°C (56°F), December offers much warmer weather with temperatures ranging from 14°C (57°F) to a peak of 27°C (82°F) and an average of 19°C (66°F). Additionally, August sees more precipitation, totaling 77 mm (3.0 in) over 11 days, while December is significantly drier with only 28 mm (1.1 in) falling across 7 days. Both months maintain a consistent humidity level of 77%, but the overall climate in December is much more pleasant for outdoor activities. For more details about December weather in Hermanus, visit Hermanus weather in December.

Compare Hermanus's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Hermanus

As August rolls into Hermanus, the coastal town shifts into a unique weather pattern that signals the end of winter. Temperatures rise gradually, offering a mild escape from the colder months, yet the air remains refreshingly crisp with a notable humidity of 77%. Frequent precipitation, with about 11 rainy days and a total of 77 mm, contributes to the lush landscapes, making it a picturesque time for nature lovers. This transitional month stands out, providing a charming blend of warmth and coolness, setting the stage for the approaching spring. For a deeper dive into the climatic nuances of Hermanus, check out Hermanus Climate.