December Weather in Graaff-Reinet, South Africa

Last updated: August 31, 2025

Experience the unique climate of Graaff-Reinet, South Africa in December, where temperatures can soar with a maximum of 40°C (104°F), balanced by a pleasant average of 21°C (70°F) and cooler lows reaching 7°C (45°F). This month sees approximately 59 mm (2.3 in) of rainfall spread across 8 days, creating a humid atmosphere with an average humidity level of 73%. December in Graaff-Reinet is characterized by warm, sunny days interspersed with refreshing showers, making it an appealing destination for those seeking both heat and relief.

December Temperature in Graaff-Reinet

In Graaff-Reinet, South Africa, December brings a delightful warmth as summer begins to take hold. With minimum temperatures averaging around 7°C (45°F) and daily highs reaching up to 40°C (104°F), it's no wonder this month is a peak time for outdoor activities. The average temperature sits comfortably at 21°C (70°F), offering pleasant conditions, especially for those looking to explore the region's natural beauty or partake in local festivities. The heat is reminiscent of the preceding months, where temperatures consistently flirt with the high 30s, reflecting a trend of increasing warmth and sunshine as the year winds down. Whether soaking in the sun or enjoying the cool evening air, December in Graaff-Reinet is a vibrant celebration of summer's arrival.

December Weather in Graaff-Reinet: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Graaff-Reinet, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Graaff-Reinet, December 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).
JanFebMarAprMayJunJulAugSepOctNovDec737269635854535360646670
Data source: Temperature data for Graaff-Reinet 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.

December Precipitation in Graaff-Reinet

In Graaff-Reinet, South Africa, December marks a notable uptick in precipitation, with 59 mm (2.3 in) of rain recorded over 8 days. This increase follows a trend of rising rainfall from the drier winter months, as November also experienced a robust 40 mm (1.6 in) over the same number of days. This pattern suggests that as summer approaches, the region benefits from more consistent and significant rain, setting the stage for lush landscapes and replenished water sources. The transition from the parched winter to a wetter summer not only reshapes the environment but also influences local agriculture and ecosystems, highlighting the cyclical nature of precipitation in the area.

December Precipitation Trends in Graaff-Reinet

The chart displays monthly precipitation patterns in Graaff-Reinet, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Graaff-Reinet, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec5468443414391827404059
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Graaff-Reinet

In December, Graaff-Reinet experiences a humidity level of 73%, marking a slight decrease from the previous month. This trend continues from the more humid months of late autumn, where humidity peaked at 84% in both March and April. As summer approaches, humidity levels begin to stabilize, reflecting a transition from the heavy atmospheric moisture characteristic of earlier months. Interestingly, December's humidity aligns closely with the more moderate levels seen in October and November, suggesting a gradual shift towards drier conditions as the year wraps up. Overall, this month maintains a comfortable humidity level, setting the stage for the warm, vibrant summer days ahead.

December Average Humidity in Graaff-Reinet

This chart illustrates the average monthly humidity levels in Graaff-Reinet, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Graaff-Reinet is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%84%85%83%79%77%68%77%72%73%73%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Graaff-Reinet

As December rolls into Graaff-Reinet, the UV Index spikes to a staggering 15, mirroring the peak levels seen in January. Both months fall under the extreme exposure category, where a mere 10 minutes of sun can lead to burns. This trend of high UV exposure continues from spring into summer, with February and March also recording values of 14 and 12 respectively. Notably, the transition to milder conditions begins in April, when the Index drops to 9, yet it remains at a very high level. As the year progresses into the cooler months, the Index gradually decreases, suggesting a significant shift in UV exposure. For locals and visitors alike, understanding these patterns is crucial for safe sun enjoyment. For more details, check out the Graaff-Reinet UV Index.

Maximum UV Index Levels in Graaff-Reinet for December

The chart shows the monthly maximum UV Index (UVI) for Graaff-Reinet in December, 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 December, the maximum UV index in Graaff-Reinet typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1514129644610121315
Data source: Graaff-Reinet December 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.

December Sunshine in Graaff-Reinet

In Graaff-Reinet, South Africa, December shines brighter than any other month, basking in an impressive 417 hours of sunlight. This radiant peak follows a steady upward trend, as the year transitions from winter to summer. The sun begins to awaken in October, with 374 hours, and continues to rise through November, reaching 387 hours before bursting forth in December's brilliance. The growing warmth and extended daylight hours not only enhance the scenic beauty but also invite locals and visitors alike to embrace the outdoor adventures that this charming town has to offer. As the year draws to a close, Graaff-Reinet truly transforms into a sunlit haven, promising delightful experiences under clear, blue skies.

Monthly Sunshine Duration in Graaff-Reinet: December Highlighted

The December sunshine duration represents the total number of hours Graaff-Reinet experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec334h344h358h314h304h288h304h321h332h374h387h417h
Data source: Graaff-Reinet December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Graaff-Reinet During December

In December, the chances of sunny weather in Graaff-Reinet drop to 42%, marking a noticeable decline compared to earlier months. This trend of diminishing sunlight begins to take shape in the latter part of the year, as the likelihood of clear skies wanes from 64% in January to a low of 55% in November. Following a peak in mid-year, where July boasts a robust 79% chance of sunshine, December's figures suggest a shift toward the cooler, more overcast days of summer. Travelers seeking sun during this time might want to be prepared for a mix of weather, as the festive spirit mingles with the potential for cloud cover.

Percentage of Sunny Days in December in Graaff-Reinet

The chart illustrates the percentage of sunny days in Graaff-Reinet throughout the year, with December 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 Graaff-Reinet experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec64%65%55%61%73%75%79%71%55%60%55%43%
Data source: Graaff-Reinet December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Graaff-Reinet in December

As December approaches in Graaff-Reinet, South Africa, the days grow longer, with daylight lasting a generous 14 hours. This trend of increasing daylight begins in the depths of winter—when daylight lingers around 10 hours from June to August—gradually escalating throughout the spring months. By November, residents can bask in 13 hours of daylight, setting the stage for an even brighter December. The shift from shorter days to longer ones signifies not only a change in seasons but also a vibrant period for outdoor activities and community gatherings, as the promise of extended daylight invites exploration and enjoyment of the natural beauty surrounding this charming town.

Average Daylight Hours in Graaff-Reinet for December

The chart illustrates the variation in daylight duration in Graaff-Reinet throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 58m13h 12m12h 14m11h 15m10h 26m10h 3m10h 15m10h 57m11h 53m12h 53m13h 45m14h 12m
Data source: Graaff-Reinet daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Graaff-Reinet

In December, Graaff-Reinet experiences a gentle breeze with an average wind speed of 2.8 m/s (6 mph), aligning closely with the calmer months of earlier in the year. Notably, the wind speeds begin to peak during the winter months, reaching 3.5 m/s (8 mph) in July, before gradually tapering off as the seasons transition into summer. This trend highlights a consistent pattern where the winds become more pronounced from May through July, followed by a softening in late spring and early summer. As the year draws to a close, December's winds reflect the tranquil charm of the region, inviting residents and visitors alike to savor the warm summer days with a pleasant, light breeze.

Average December Wind Speed in Graaff-Reinet

The chart displays monthly wind speed patterns in Graaff-Reinet, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.72.82.62.43.03.23.53.03.02.93.02.8 m/s
Data source: Graaff-Reinet December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Graaff-Reinet Compares to Other Months

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

December and January in Graaff-Reinet exhibit similar temperature extremes, with both months reaching a maximum of 40°C (104°F). However, January tends to be slightly warmer overall, with an average temperature of 23°C (73°F) compared to December's 21°C (70°F). The minimum temperatures also rise from 7°C (45°F) in December to 9°C (48°F) in January. Precipitation is slightly lower in January at 54 mm (2.1 in), with both months experiencing rain on about 8 days. Humidity levels are also marginally higher in January, reaching 76% compared to December's 73%. For more detailed information on January's weather in this region, visit Graaff-Reinet weather in January.

In December, temperatures in Graaff-Reinet range from a minimum of 7°C (45°F) to a maximum of 40°C (104°F), with an average of 21°C (70°F). The month sees about 59 mm (2.3 in) of precipitation over 8 days, accompanied by a humidity level of 73%. In contrast, February experiences slightly warmer weather, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 40°C (105°F) and an average of 22°C (73°F). Precipitation increases to 68 mm (2.7 in) over 11 days, and humidity rises to 75%. For more detailed weather information, you can visit Graaff-Reinet weather in February.

In December, temperatures in Graaff-Reinet range from a minimum of 7°C (45°F) to a maximum of 40°C (104°F), with an average of 21°C (70°F). The month experiences approximately 59 mm (2.3 in) of precipitation over 8 days, along with a humidity level of 73%. In contrast, March presents slightly cooler nights with a minimum temperature of 5°C (42°F) while maintaining the same average and maximum temperatures as December. Precipitation in March is lower, at 44 mm (1.7 in), yet the number of rainy days remains the same at 8. Notably, humidity rises to 84% in March, making it feel more humid compared to December. For a more detailed look at March's climate, visit Graaff-Reinet weather in March.

In December, the weather is generally warmer with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 40°C (104°F), and an average temperature of 21°C (70°F). The city experiences about 59 mm (2.3 in) of precipitation over 8 days, with humidity around 73%. In contrast, April sees cooler temperatures, with a minimum of 3°C (38°F), an average of 17°C (63°F), and a maximum of 37°C (99°F). Precipitation is lower at 34 mm (1.3 in) across 6 days, and humidity increases slightly to 84%. For a more detailed look at the weather in April, visit Graaff-Reinet weather in April.

In December, the weather is significantly warmer, with temperatures ranging from a minimum of 7°C (45°F) to a scorching maximum of 40°C (104°F), and an average of 21°C (70°F). It tends to be quite humid at 73%, with approximately 59 mm (2.3 in) of precipitation spread over about 8 days. In contrast, May offers a much cooler climate, with temperatures dipping to a minimum of 1°C (33°F) and peaking at 31°C (87°F), averaging 15°C (59°F). The precipitation in May is considerably lower, at just 14 mm (0.6 in) over about 3 days, and the humidity rises slightly to 83%. For more detailed information on the weather in May, you can visit Graaff-Reinet weather in May.

In December, the weather is notably hotter, with temperatures ranging from a minimum of 7°C (45°F) to a scorching maximum of 40°C (104°F), and an average temperature of 21°C (70°F). This month also experiences higher precipitation, with about 59 mm (2.3 in) of rainfall over 8 days, contributing to a humidity level of 73%. In contrast, June presents a much cooler climate, featuring temperatures that drop to a minimum of -3°C (26°F) and rise to a maximum of 29°C (84°F), with an average temperature of only 12°C (55°F). The precipitation in June is significantly lower at just 3 mm (0.1 in) over 1 day, and humidity remains relatively high at 79%. For those interested in specifics, more details can be found at Graaff-Reinet weather in June.

The weather in December and July presents a striking contrast. December boasts warmer temperatures, with a minimum of 7°C (45°F) and an average of 21°C (70°F), reaching as high as 40°C (104°F). In contrast, July experiences much cooler conditions, with temperatures dipping as low as -5°C (24°F) and averaging around 12°C (53°F), peaking at 28°C (83°F). Additionally, December sees more rainfall, with 59 mm (2.3 in) over approximately 8 days, while July is drier with only 9 mm (0.4 in) across just 2 days. Interestingly, July also has a slightly higher humidity level at 77%, compared to December’s 73%. For more detailed insights into July weather, you can visit Graaff-Reinet weather in July.

The weather in December contrasts sharply with that of August in several ways. In December, temperatures range significantly, with a mild minimum of 7°C (45°F) and a scorching maximum reaching 40°C (104°F), resulting in an average of 21°C (70°F). The month also experiences higher humidity at 73% and more precipitation, totaling 59 mm (2.3 in) over approximately 8 days. In comparison, August presents a much cooler climate, where temperatures range from a chilling minimum of -2°C (29°F) to a more moderate maximum of 32°C (89°F), averaging just 12°C (53°F). August is drier, with only 18 mm (0.7 in) of precipitation across 4 days and slightly lower humidity at 68%. For a closer look at the conditions specific to August, check out Graaff-Reinet weather in August.

December and September showcase distinct weather patterns in terms of temperature and precipitation. December experiences a much warmer range, with minimums around 7°C (45°F) and soaring maximums that can reach up to 40°C (104°F). In contrast, September presents a cooler atmosphere, with temperatures dipping as low as -2°C (29°F) and averaging at 15°C (60°F).

While December sees an average precipitation of 59 mm (2.3 in) over about 8 days, September has a lower total precipitation of 27 mm (1.1 in) across just 4 days. Additionally, humidity levels are slightly higher in September at 77% compared to December's 73%. For a more detailed look at September's conditions, you can visit Graaff-Reinet weather in September.

In December, the weather in Graaff-Reinet typically features a milder minimum temperature of 7°C (45°F) and a higher average temperature of 21°C (70°F), compared to the cooler October, which sees a minimum of 2°C (36°F) and an average of 18°C (64°F). Both months experience relatively high maximum temperatures, with December peaking at 40°C (104°F) and October at 39°C (102°F). Precipitation is slightly higher in December at 59 mm (2.3 in) over approximately 8 days, whereas October receives 40 mm (1.6 in) over 6 days. Humidity levels remain comparable, with December at 73% and October at 72%. For more details, you can check Graaff-Reinet weather in October.

In December, temperatures in Graaff-Reinet range from a minimum of 7°C (45°F) to a maximum of 40°C (104°F), with an average temperature of 21°C (70°F). This month experiences a bit more precipitation, totaling 59 mm (2.3 in) over 8 days, while humidity remains constant at 73%. In comparison, November sees slightly cooler temperatures, with a minimum of 4°C (39°F) and the same maximum of 40°C, but a lower average of 19°C (66°F). November also has less rainfall, with 40 mm (1.6 in) falling over 6 days. For more detailed weather insights in November, visit Graaff-Reinet weather in November.

Compare Graaff-Reinet's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Graaff-Reinet

In December, Graaff-Reinet experiences a striking shift in its weather patterns, marked by warmer temperatures and increased humidity compared to the rest of the year. With maximums soaring up to a sizzling 40°C (104°F), the warmth invites both locals and visitors to embrace the outdoors. Despite the heat, the region receives a modest amount of rainfall over approximately eight days, bringing some relief and refreshing the landscape. This month’s climatic conditions create a vibrant atmosphere that stands in contrast to the cooler, drier months that precede it. To learn more about the overall climate trends that define this charming destination, be sure to check out Graaff-Reinet Climate.