August Weather in Grytviken, South Georgia and the South Sandwich Islands

Last updated: August 31, 2025

Grytviken, located in the remote South Georgia and the South Sandwich Islands, experiences a chilly and wet August. With maximum temperatures reaching only 4°C (39°F) and an average of -3°C (27°F), this month offers a stark reminder of the harsh conditions in this part of the world. Minimum temperatures can plunge to a brisk -13°C (8°F), making it essential for travelers to dress warmly. The region also sees significant precipitation, totaling 159 mm (6.2 in) over 22 days, contributing to the high humidity levels of 86%. August weather in Grytviken showcases a rugged and unyielding landscape, appealing to adventurers seeking the beauty of the wilderness in its rawest form.

August Temperature in Grytviken

In August, Grytviken in the South Georgia and the South Sandwich Islands experiences its coldest temperatures of the year. With minimum readings dipping to -13°C (8°F), an average of -3°C (27°F), and a maximum reaching 4°C (39°F), this month reflects a notable trend towards biting chill, following the even colder depths of July. While temperatures begin to rise slightly as winter wanes, the lingering cold can still be felt, making it one of the toughest months in terms of weather. Overall, August serves as a stark reminder of Grytviken's harsh, unforgiving climate during the winter season, setting the stage for the gradual transition into the warmer months ahead.

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

The chart illustrates August temperature patterns in Grytviken, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grytviken, 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).
JanFebMarAprMayJunJulAugSepOctNovDec363635332927252729303335
Data source: Temperature data for Grytviken 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 Grytviken

August in Grytviken, South Georgia and the South Sandwich Islands marks a peak in precipitation, with 159 mm (6.2 in) of rain recorded, the highest of the year. This coincides with 22 days of rainfall, reflecting a notable trend of increased wetness as winter transitions towards spring. Following July's similar precipitation levels of 120 mm, August stands out for both its volume and the duration of rain, which sets the stage for the upcoming seasonal shift. As the year progresses, September sees a slight decrease to 138 mm (5.4 in), suggesting a gradual easing of the heavy rains that characterize the mid-winter months. With this pattern, August firmly establishes itself as a significant turning point in Grytviken's yearly weather narrative.

August Precipitation Trends in Grytviken

The chart displays monthly precipitation patterns in Grytviken, 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 Grytviken, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec120117142143134118120159138118106122
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Grytviken

In Grytviken, South Georgia and the South Sandwich Islands, August sees a humidity level of 86%, slightly higher than the preceding month of July, which recorded 83%. This month marks a transition into the spring season, where humidity levels generally stabilize, lingering close to the average of 86-90% seen from late summer to early fall. The trend of humidity shows a gradual decline from January's peak of 92%, gradually tapering down over the colder months before experiencing a slight uptick as the year progresses toward spring. August's humidity sits comfortably within this pattern, contributing to the region's cool, moist climate, making it a unique destination year-round.

August Average Humidity in Grytviken

This chart illustrates the average monthly humidity levels in Grytviken, 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 Grytviken is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%90%86%87%85%83%86%87%86%90%90%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Grytviken

In August, Grytviken experiences a moderate UV Index of 3, indicating a burn time of about 30 minutes for fair-skinned individuals. This marks a slight increase from the preceding months, as the UV Index begins its gradual ascent towards the peak levels seen in the summer. Following July's low values, where the UV Index remained at 2, August's moderate exposure serves as a reminder to be cautious outdoors, particularly as the sun's intensity begins to rise again. As the year progresses, UV levels will continue to fluctuate, peaking sharply in the summer months of November and December with extreme values of 16. For more details on UV trends and protection tips, visit Grytviken UV Index.

Maximum UV Index Levels in Grytviken for August

The chart shows the monthly maximum UV Index (UVI) for Grytviken 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 Grytviken typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1196421236111616
Data source: Grytviken 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 Grytviken

In August, Grytviken basks in a modest 73 hours of sunshine, marking a slight uptick from the gloomy depths of winter, where sunlight dwindles to just 46 hours in July. This subtle resurgence in luminosity foreshadows the approach of spring, as the days begin to lengthen and the landscape starts to awaken. While still far below the sun-kissed heights of November and December, when the sun graces the land with 187 and 211 hours respectively, August stands as a gentle reminder that brighter days are on the horizon. The ebb and flow of sunshine throughout the year paints a vivid picture of the changing seasons in this remote paradise, where winter’s retreat is welcomed with open arms and patient anticipation.

Monthly Sunshine Duration in Grytviken: August Highlighted

The August sunshine duration represents the total number of hours Grytviken 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.
JanFebMarAprMayJunJulAugSepOctNovDec150h145h123h100h68h50h46h73h100h144h187h211h
Data source: Grytviken August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Grytviken During August

In Grytviken, South Georgia, August typically sees a modest 16% chance of sunny weather, placing it among the lower probabilities for the year. This trend reflects a generally cool and overcast climate, with only a slight increase in sunshine as the transition from winter to spring begins. Interestingly, as the year progresses, the likelihood of sunny days gradually rises, peaking in June at 27%. Thus, while August may not be the sunniest month, it serves as a precursor to the brighter conditions that await in the coming months.

Percentage of Sunny Days in August in Grytviken

The chart illustrates the percentage of sunny days in Grytviken 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 Grytviken experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec14%20%19%13%22%27%15%16%17%23%23%20%
Data source: Grytviken August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Grytviken in August

In Grytviken, South Georgia, August marks a subtle shift in daylight duration as the long winter begins to wane. After experiencing just 7 hours of daylight during the depths of June and July, August sees an increase to 9 hours, signaling the gradual return of sunlight. This pattern is a precursor to more substantial daylight gains in the following months, as daylight reaches 11 hours in September and continues to extend toward 17 hours by December. Observing this progression highlights not only the seasonal rhythm of the region but also hints at the vibrant life that stirs beneath the snow-covered landscape as spring approaches.

Average Daylight Hours in Grytviken for August

The chart illustrates the variation in daylight duration in Grytviken throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec16h 27m14h 36m12h 25m10h 15m8h 21m7h 23m7h 54m9h 36m11h 42m13h 54m15h 57m17h 4m
Data source: Grytviken daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Grytviken

The August wind in Grytviken, South Georgia and the South Sandwich Islands, showcases a notable uptick in average wind speed, reaching 6.2 m/s (14 mph), aligning with trends observed in the preceding months. Following a relatively calm late winter period, where May and June hover around 4.4 m/s to 4.9 m/s, the wind begins to pick up momentum entering late summer. This surge indicates a transitionary phase, typical for the region, as the wind speeds in August not only match those of March and April but also remain comparable to September's 6.0 m/s (13 mph). Overall, the data illustrates a dynamic shift in wind patterns, hinting at the climatic nuances that define this remote, yet stunningly beautiful, corner of the world.

Average August Wind Speed in Grytviken

The chart displays monthly wind speed patterns in Grytviken, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.55.16.26.54.44.95.06.2 m/s6.05.05.45.8
Data source: Grytviken August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Grytviken Compares to Other Months

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

In August, the weather in Grytviken is colder, with average temperatures ranging from a minimum of -13°C (8°F) to a maximum of 4°C (39°F). This month also sees significant precipitation, measuring 159 mm (6.2 in) over 22 days, and humidity levels are quite high at 86%. In contrast, January experiences milder temperatures, with a minimum of -3°C (27°F) and a maximum of 8°C (46°F), along with slightly less precipitation, at 120 mm (4.7 in) across 19 days. Humidity remains high at 92%, making January feel somewhat damp. For more specific details on January weather, visit Grytviken weather in January.

When comparing the weather in August and February, significant differences emerge. August experiences cooler temperatures, with a minimum of -13°C (8°F) and an average of -3°C (27°F), while February sees milder conditions, ranging from a minimum of -3°C (27°F) to an average of 2°C (37°F). Precipitation is also notable, with August receiving 159 mm (6.2 in) over 22 days, compared to February's 117 mm (4.6 in) over 18 days. Additionally, humidity levels are quite high in both months, with August at 86% and February slightly higher at 90%. For a closer look at February weather specifics, visit Grytviken weather in February.

In Grytviken, August typically experiences colder temperatures compared to March, with minimums reaching -13°C (8°F) and maximums only peaking at 4°C (39°F), while March sees a milder range with minimums at -5°C (23°F) and maximums at 7°C (45°F). Precipitation levels are fairly similar, with August receiving 159 mm (6.2 in) and March slightly less at 142 mm (5.6 in), both occurring over 22 days. The humidity in both months remains high, at 86% in August and 90% in March, contributing to the often damp and chilly conditions. For a more detailed look at March weather, you can check Grytviken weather in March.

In comparing the weather of August and April, both months experience similar levels of humidity at 86%, creating a consistently damp atmosphere. August tends to be colder, with average temperatures ranging from a minimum of -13°C (8°F) to a maximum of 4°C (39°F), while April offers slightly milder conditions with temperatures between -6°C (21°F) and 6°C (43°F). Precipitation levels are comparable, with August seeing 159 mm (6.2 in) over 22 days and April slightly less at 143 mm (5.6 in) across 23 days. For more detailed insights on April weather, you can refer to Grytviken weather in April.

In comparing the weather between August and May, we see that both months experience cold temperatures typical of the region. August tends to be slightly colder, with average temperatures around -3°C (27°F) and a maximum of 4°C (39°F), compared to May's average of -2°C (29°F) and maximum of 5°C (42°F). Precipitation levels are also notable; August receives around 159 mm (6.2 in) over 22 days, while May sees a bit less, with 134 mm (5.3 in) across 20 days. The humidity remains high in both months, with August averaging 86% and May slightly higher at 87%. For a more detailed look at May weather specifics, you can check Grytviken weather in May.

When comparing the weather between August and June, we find that both months have similar temperature ranges, with average temperatures hovering around -3°C (27°F) and maximums reaching 4°C (39-40°F). However, August experiences slightly colder minimum temperatures, dipping to -13°C (8°F) compared to June's -11°C (13°F). Precipitation levels also differ, with August seeing 159 mm (6.2 in) over 22 days, while June has 118 mm (4.6 in) across 19 days, indicating that August tends to be wetter. Humidity levels remain relatively high in both months, with August at 86% and June at 85%. For a more detailed look at June's weather in Grytviken, you can refer to Grytviken weather in June.

In comparing the weather between July and August, August generally experiences slightly milder temperatures, with an average of -3°C (27°F) compared to July's -4°C (25°F). While both months have similar maximum temperatures, August tends to have a higher minimum temperature of -13°C (8°F) versus July’s -15°C (6°F). Precipitation also increases in August, with 159 mm (6.2 in) over 22 days, compared to July's 120 mm (4.7 in) over 19 days, leading to a higher humidity level of 86% in August compared to 83% in July. For detailed weather specifics, you can check the Grytviken weather in July.

When comparing the weather in August and September, we find that both months feature similar maximum temperatures, with highs reaching 4°C (39°F). However, August tends to be slightly colder on average, with a minimum temperature of -13°C (8°F), compared to September’s -11°C (12°F). In terms of precipitation, August receives slightly more with 159 mm (6.2 in) over 22 days, whereas September sees 138 mm (5.4 in) over 20 days. Humidity levels remain high in both months, with September showing a marginally higher average at 87% compared to August's 86%. For more detailed insights into September's weather, you can check out Grytviken weather in September.

In comparing the weather between August and October, we notice a slight warming trend. August features lower temperatures with a minimum of -13°C (8°F) and an average of -3°C (27°F), whereas October sees a milder minimum of -9°C (16°F) and an average of -1°C (30°F). Precipitation also decreases from 159 mm (6.2 in) over 22 days in August to 118 mm (4.7 in) over 19 days in October. Humidity remains consistent at 86% for both months, adding to the chilly, damp atmosphere. For more detailed information on October's weather, you can refer to Grytviken weather in October.

In August, the weather tends to be colder than in November, with average temperatures ranging from a minimum of -13°C (8°F) to a maximum of 4°C (39°F). This month also sees higher precipitation levels, with 159 mm (6.2 in) falling over 22 days, and humidity levels sitting at 86%. In contrast, November experiences milder temperatures, with minima around -6°C (21°F) and maxima reaching 5°C (41°F). Precipitation decreases to 106 mm (4.2 in) over 20 days, accompanied by a slight rise in humidity to 90%. For a closer look at November’s weather specifics, you can visit Grytviken weather in November.

In comparing the weather between August and December, August tends to be colder, with average temperatures ranging from a frigid -13°C (8°F) to a maximum of 4°C (39°F) and higher precipitation levels at 159 mm (6.2 in) over 22 days, accompanied by a high humidity of 86%. In contrast, December experiences milder temperatures, with averages from -2°C (28°F) to a maximum of 6°C (44°F), alongside lower precipitation of 122 mm (4.8 in) over 21 days and slightly higher humidity at 90%. This shift in temperature and precipitation highlights a transition from the harsh winter conditions of August to the relatively more temperate climate of December. For more detailed information, you can visit Grytviken weather in December.

Compare Grytviken's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Grytviken

August in Grytviken is characterized by chilly temperatures and frequent precipitation, setting it apart from the milder months of the year. With average temperatures hovering around -3°C (27°F), this month is typically one of the coldest, and the high humidity of 86% combined with 22 rainy days creates a damp atmosphere that can feel particularly brisk. Unlike the more temperate summer months, August's weather serves as a sharp reminder of Grytviken's remote, harsh environment. For those interested in exploring this unique climate, more information can be found at Grytviken Climate.