Last updated: August 31, 2025
Discover the charming December weather of Hermanus, South Africa, where the maximum temperature reaches an inviting 27°C (82°F), perfectly balanced by an average temperature of 19°C (66°F). With minimums dipping to a cozy 14°C (57°F), this coastal town offers the ideal climate for both relaxation and adventure. Although December experiences around 28 mm (1.1 in) of rainfall spread across 7 days, the 77% humidity adds a pleasant touch to the warm summer air. Embrace the delightful combination of mild temperatures and scenic beauty that makes Hermanus a must-visit destination this festive season!
In Hermanus, South Africa, December brings a pleasant warmth that marks the beginning of summer. With minimum temperatures averaging around 14°C (57°F) and peaking at a comfortable 27°C (82°F), the month offers ideal conditions for outdoor activities and coastal exploration. The average temperature hovers around 19°C (66°F), indicating a trend towards increasingly milder days that make December a delightful time to visit. As the year draws to a close, the warmth is a welcome contrast to the cooler winter months, providing the perfect backdrop for enjoying the stunning landscapes and vibrant marine life that Hermanus is renowned for.
In Hermanus, South Africa, December marks a transitional period in precipitation patterns, with the month receiving 28 mm (1.1 in) of rainfall over approximately 7 days. This amount is slightly lower than the wetter months preceding it, particularly May and June, which see significantly higher totals of 75 mm (2.9 in) and 84 mm (3.3 in), respectively. However, it stands in contrast to the drier months of January and February, which average around 23 mm (0.9 in) and 17 mm (0.7 in). As the year closes, the precipitation trend showcases a gradual decline, setting the stage for the imminent summer months, where lighter rains become the norm. This pattern highlights the region's unique climate dynamics, balancing moments of rainfall with the sunny coastal allure that attracts visitors during this festive season.
In Hermanus, South Africa, December brings a moderate humidity level of 77%, which aligns closely with the average for the earlier months of the year. As the year progresses, a noticeable peak occurs in March with 81%, after which humidity begins to stabilize, hovering around 77-80% from June to August. Notably, humidity dips slightly in November to 75% before rising again in December. This consistent pattern reflects the region's oceanic climate, suggesting a blend of refreshing coastal breezes and subdued moisture, making December a comfortable month for both residents and visitors alike.
In Hermanus, South Africa, December signifies the peak of summer sunshine, bringing with it an extreme UV Index of 14, matching January's intensity. This level of exposure requires caution, with a burn time of just 10 minutes, reminding residents and visitors alike to prioritize skin protection. Observing the trend throughout the year, we see a consistent pattern of high UV levels from late spring to early summer, notably in the months of October to December, when the index hovers around extreme levels. As autumn transitions to winter, the UV Index dips, reflecting a more moderate sun exposure for the months of May through July. However, as spring approaches, the UV levels rise again, underscoring the importance of sun safety, especially during these peak months. For more detailed information, visit Hermanus UV Index.
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As December unfolds in Hermanus, South Africa, the sun graces the coastal town with an impressive 421 hours of sunshine, marking it as the sunniest month of the year. This radiant finale to the year follows a notable upward trend in daylight hours, with November already basking in 390 hours. The gradual increase from the cooler months, where sunshine dips to around 267 hours in June, vividly illustrates the region’s transition into summer. With December’s bright embrace, it’s clear that the warmer months bring not only longer days but also a vibrant energy that makes Hermanus a delightful destination for sun-seekers and nature lovers alike.
In Hermanus, South Africa, December tends to mark the beginning of summer, yet the chance of sunny weather dips to 46%, making it one of the cloudier months of the year. This trend follows a gradual decline from the previous months, where the chances ranged between 47% in November and peaked at 67% in February. It's interesting to note that the summer months, while celebrated for their warmth, don't necessarily guarantee clear skies, especially when compared to the sunnier spells of January and February. Thus, while December offers the promise of warmer days, visitors should be prepared for some overcast moments amid the sunshine.
In Hermanus, South Africa, December shines brightly with an impressive 14 hours of daylight, mirroring January's radiant hours. This peak in sunshine marks the culmination of a gradual increase throughout the year, starting from the depths of winter in June, when daylight dwindles to just 9 hours. As the seasons shift, a notable trend emerges: daylight steadily lengthens from June through December, with spring and summer offering the longest, sunniest days. The transition is gradual, moving from 10 hours in May and July to a warm 13 hours by November, creating a vibrant atmosphere perfect for exploring the stunning coastal landscapes. Overall, the daylight pattern in Hermanus not only highlights the seasonal rhythms but also invites residents and visitors alike to bask in the glow of summer's embrace.
As December settles over Hermanus, South Africa, the average wind speed picks up slightly, reaching 5.9 m/s (13 mph)—the highest recorded for the year, just edging out January’s breezy 5.8 m/s (13 mph). This marks a subtle yet noteworthy trend, as the winds begin to regain strength during the summer months following a gradual decline from April's calmer 4.3 m/s (10 mph). The fresh December breezes not only invigorate the coastal landscape but also signal the approach of warmer days ahead, making it a delightful time for both locals and visitors to embrace the natural beauty of this coastal haven. In contrast, the winter months tend to experience more tranquil winds, with speeds often hovering around 4.3 to 5.2 m/s, creating a rhythm that allows for a serene experience by the sea.
Weather in Hermanus varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Hermanus, focusing on differences in temperature, rainfall, humidity, and UV levels.
December's weather in Hermanus features a warm average temperature of 19°C (66°F), with daily highs reaching up to 27°C (82°F). The month experiences a total precipitation of 28 mm (1.1 in) over about seven days, while humidity remains consistently high at 77%.
In contrast, January sees slightly milder conditions, with an average temperature of 20°C (69°F) and maximum temperatures climbing to 29°C (84°F). Precipitation is less frequent, totaling 23 mm (0.9 in) across five days, yet humidity levels remain unchanged at 77%. For more details on what to expect in January, visit Hermanus weather in January.
In December, temperatures in Hermanus range from a minimum of 14°C (57°F) to a maximum of 27°C (82°F), with an average temperature of 19°C (66°F). The month experiences approximately 28 mm (1.1 in) of precipitation over 7 days, and humidity levels are around 77%. In contrast, February sees slightly warmer temperatures, with a minimum of 16°C (60°F) and a maximum of 29°C (84°F), resulting in an average of 20°C (69°F). Precipitation decreases to 17 mm (0.7 in) over just 5 days, and humidity rises to 80%. For more details on February’s weather, you can visit Hermanus weather in February.
In December, temperatures range from a minimum of 14°C (57°F) to a maximum of 27°C (82°F), with an average of 19°C (66°F). The month experiences about 28 mm (1.1 in) of precipitation over 7 days, and the humidity sits at 77%. In contrast, March shares similar temperature patterns, with lows of 14°C (58°F) and highs of 27°C (81°F), maintaining an average of 19°C (67°F). However, March sees slightly higher precipitation at 31 mm (1.2 in) across 6 days and a marginal increase in humidity to 81%. For more detailed information, check out Hermanus weather in March.
In December, the weather is characterized by warmer temperatures, ranging from a minimum of 14°C (57°F) to a maximum of 27°C (82°F), with an average temperature of 19°C (66°F). The month sees a total precipitation of 28 mm (1.1 inches) over about seven days, accompanied by a humidity level of 77%. In contrast, April experiences slightly cooler temperatures, with a minimum of 12°C (54°F) and a maximum of 30°C (86°F), while the average temperature dips to 17°C (64°F). April's rainfall is somewhat less, totaling 25 mm (1.0 inch) over six days, with a slightly higher humidity of 80%. For a more detailed look at April weather in Hermanus, you can check Hermanus weather in April.
In December, the weather is generally warmer with average temperatures ranging from 19°C (66°F) to a maximum of 27°C (82°F), coupled with relatively low precipitation of 28 mm (1.1 in) over 7 days and a humidity level of 77%. In contrast, May experiences cooler conditions, with an average temperature of 16°C (61°F) and a similar maximum of 28°C (83°F), but sees a significant increase in rainfall at 75 mm (2.9 in) over just 6 days, along with slightly higher humidity at 78%. This comparison highlights the transition from the warmer and drier December to the cooler and wetter May. For more detailed information, you can check the Hermanus weather in May.
December and June exhibit distinct weather patterns, showcasing the transition between seasons. December enjoys warmer temperatures, with averages reaching 19°C (66°F) and maximums soaring to 27°C (82°F), while June is cooler, averaging around 15°C (59°F) with maximums of 23°C (74°F). In terms of precipitation, December has less rain (28 mm or 1.1 in) over 7 days compared to June, which sees more significant rainfall at 84 mm (3.3 in) across 10 days. Notably, humidity levels are quite similar, hovering around 77% in December and 79% in June, creating a humid atmosphere year-round. For a detailed look at weather in June, you can visit Hermanus weather in June.
When comparing the weather in December and July, December generally offers warmer temperatures, with a minimum of 14°C (57°F) and an average of 19°C (66°F), peaking at 27°C (82°F). The month sees about 28 mm (1.1 in) of precipitation over roughly 7 days, while humidity hovers around 77%. In contrast, July experiences cooler temperatures, ranging from a minimum of 9°C (48°F) to a maximum of 23°C (74°F), with an average of 14°C (57°F). Rainfall is more significant in July, totaling 80 mm (3.1 in) over approximately 9 days, and humidity remains slightly higher at 80%. For a detailed look at July weather, check out Hermanus weather in July.
December and August present stark contrasts in weather. In December, temperatures range from a minimum of 14°C (57°F) to a maximum of 27°C (82°F), with an average of 19°C (66°F). The month sees relatively low precipitation of 28 mm (1.1 in) over 7 days, while the humidity remains comfortably high at 77%. In contrast, August experiences cooler temperatures with a minimum of 7°C (45°F), an average of 13°C (56°F), and a maximum of 23°C (73°F). It also brings more rainfall, totaling 77 mm (3.0 in) over 11 days, yet the humidity is consistent at 77%. For a deeper dive into the specifics of the weather during this month, you can check Hermanus weather in August.
When comparing the weather in December and September, noticeable differences in temperature and precipitation emerge. December experiences a warmer range, with minimum temperatures around 14°C (57°F) and maximums reaching up to 27°C (82°F), while September starts cooler with a minimum of 9°C (48°F) and a maximum of 28°C (83°F). Notably, December's average temperature is higher at 19°C (66°F) compared to September’s 15°C (59°F). However, September has more substantial rainfall, totaling 46 mm (1.8 in) over 8 days, in contrast to December's 28 mm (1.1 in) over just 7 days. Both months exhibit similar humidity levels, hovering just around 76-77%. For more detailed insights into September's climate, you can check Hermanus weather in September.
In comparing the weather between December and October, December tends to be warmer, with average temperatures ranging from a minimum of 14°C (57°F) to a maximum of 27°C (82°F), while October has slightly cooler averages, with temperatures dipping to a minimum of 11°C (52°F) and peaking at 28°C (83°F). Both months exhibit high humidity levels of 77%, but October experiences significantly more precipitation, totaling 48 mm (1.9 in) over 8 days compared to December's 28 mm (1.1 in) over 7 days. This contrast makes December a generally drier and slightly warmer month overall. For more detailed information, you can visit Hermanus weather in October.
In comparing the weather of December and November, December typically experiences slightly warmer temperatures, with a minimum of 14°C (57°F) compared to November's 11°C (52°F). The average temperature in December is also higher at 19°C (66°F), while November averages 17°C (63°F). Furthermore, the maximum temperatures in December reach 27°C (82°F), exceeding November’s high of 25°C (78°F). Interestingly, while December sees less overall precipitation at 28 mm (1.1 in), it shares the same number of rainy days as November, which recorded 41 mm (1.6 in) over 7 days. Additionally, humidity levels remain fairly consistent, with December at 77% and November at 75%. For more specifics on November weather, you can check out Hermanus weather in November.
As December settles in, Hermanus transforms into a sun-kissed coastal paradise, experiencing noticeably warmer temperatures compared to the cooler months preceding it. With daily highs reaching up to 27°C (82°F), this month invites both locals and visitors to enjoy outdoor activities amidst the backdrop of stunning ocean views. Though rainfall is minimal, with about 28 mm spread over approximately seven days, the humidity dances around 77%, adding a vibrant tropical feel to the air. This delightful balance of warmth and occasional showers sets December apart, making it a perfect time to embrace the natural beauty and coastal charm of Hermanus. For more insights on weather patterns, check out Hermanus Climate.