Last updated: August 31, 2025
May in Grytviken, South Georgia and the South Sandwich Islands presents a chilly atmosphere, with maximum temperatures reaching 5°C (42°F) and an average settling at -2°C (29°F). Expect cool nights as temperatures can dip to a brisk -9°C (16°F). This month is characterized by significant precipitation, accumulating to 134 mm (5.3 in) over 20 days, which contributes to the region's lush, albeit damp, landscape. Humidity levels are notably high at 87%, enhancing the overall sense of freshness and adaptability necessary for both nature and visitors alike. Embrace the rugged and wild beauty of this remote locale amid its unpredictable May weather!
In May, Grytviken experiences a noticeable drop in temperatures as winter approaches, with minimums plunging to -9°C (16°F) and average temperatures dipping to -2°C (29°F). This marks a significant shift from the milder autumn months, where temperatures rarely fell below zero. The maximum temperature reaches just 5°C (42°F), signaling a chilly transition to the coldest months of the year. Compared to April's temperatures, which hovered around 1°C (33°F) on average, May brings a stark change, highlighting the region's rugged climate. As such, visitors should prepare for colder conditions, making May a time when the wild beauty of South Georgia is paired with a crisp, bracing atmosphere.
In May, Grytviken experiences a notable precipitation total of 134 mm (5.3 in), slightly below the preceding month of April. Rainfall occurs on 20 days, maintaining the pattern of relatively frequent wet days that are characteristic of the region's climate. This month serves as a transition point, paving the way into the winter months where precipitation typically decreases, as seen in June’s total of 118 mm (4.6 in). Over the past months, a clear trend emerges with both rainfall amounts and rainy days peaking during mid-autumn. Despite the abundance of precipitation, the overall weather in May remains pivotal for the local ecosystem, providing essential moisture before the colder season sets in.
In May, Grytviken experiences a humidity level of 87%, reflecting a slight uptick from the previous month’s 86%. This early winter moisture is typical for the region, maintaining a consistent trend seen from the preceding months. Starting from a humid 92% in January, the levels gradually decline, with a notable dip in June to 85%. Despite this decrease, May’s humidity remains relatively high, echoing the transitional climate of South Georgia and the South Sandwich Islands. As the seasons shift, the overall pattern indicates a stable maritime influence, keeping the air consistently damp, especially as summer gives way to the winter chill.
In May, Grytviken experiences a relatively low UV Index of 2, categorized as low, allowing for a longer safe exposure time of 45 minutes without significant risk of sunburn. This month marks a notable decline in UV intensity as winter approaches, following the extreme levels seen in the summer months of January and November, where the UV Index soared to 11 and 16 respectively. The gradual decrease in UV levels from late summer through spring highlights a seasonal trend, with the highest UV indices peaking in the early months of the year, while cooler months maintain safer conditions for outdoor activities. For more details on UV exposure trends, check out the Grytviken UV Index.
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May marks a significant transition in Grytviken, South Georgia and the South Sandwich Islands, with sunshine hours dwindling to 68 hours—a stark contrast to the 150 hours basked in during January. As the year progresses from the bright beginnings of summer, sunlight steadily diminishes, culminating in the bleak midwinter months of June and July, where only 50 and 46 hours of sunshine grace the horizon, respectively. However, the gradual increase of daylight begins anew in August, hinting at the gradual emergence from winter's grip. This seasonal ebb and flow of sunshine not only underscores the dramatic shifts in Grytviken’s climatic patterns but also sets the stage for the longer, sunnier days that follow in late spring and summer, with November and December showcasing an impressive 187 and 211 hours of sunlight.
In Grytviken, South Georgia, May offers a notable increase in the likelihood of sunny weather, with a 22% chance of sunshine—a welcome change after the dreary April, which sees just 13%. This uptick is part of a broader trend, as the month nestles between the cooler, cloudier months of April and June, which boasts the highest likelihood of sun at 27%. Interestingly, sunlight chances gradually rise from the lows of mid-year, peaking in the late spring and early summer months, suggesting that if you're planning a visit in May, you might experience some of the island's finest weather moments.
In Grytviken, South Georgia, the changing daylight duration throughout the year reveals a clear trend influenced by the region's dramatic seasonal shifts. January peaks with 16 hours of daylight, as summer graces the islands with abundant sunshine. As the months progress, daylight gradually diminishes; by May, it drops to 8 hours, signaling the onset of winter. The decline continues into June and July, where daylight is limited to just 7 hours, showcasing the stark contrast of polar nights. However, as spring approaches in August, daylight begins to reclaim its presence, increasing to 9 hours and continuing to rise until December, when the cycle culminates in a stunning 17 hours of daylight. This rhythmic ebb and flow of sunlight not only showcases the beauty of Grytviken’s natural environment but also highlights the profound seasonal transformations characteristic of this remote location.
In Grytviken, South Georgia and the South Sandwich Islands, the month of May brings milder winds, with an average speed of 4.4 m/s (10 mph), making it one of the calmer months of the year. Following the increasing trend through the earlier months, where winds peaked in April at 6.5 m/s (14 mph), May acts as a gentle pause before the winds pick up again in the coming winter months. This slight decrease in wind speed contrasts with the more turbulent conditions seen in the peak summer months of March and April, both averaging above 6 m/s. As the year progresses, the winds typically fluctuate between 4.4 m/s in late spring and 6.2 m/s during the late autumn, creating a varied yet predictable pattern that characterizes the island's weather throughout the seasons.
Weather in Grytviken varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Grytviken, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather conditions of May and January, we see distinct differences. May experiences slightly colder temperatures, with a minimum of -9°C (16°F) and an average of -2°C (29°F), while January has milder temperatures, where the minimum is -3°C (27°F) and the average reaches 2°C (36°F). Although both months are quite wet, May has a higher precipitation total of 134 mm (5.3 in) over 20 days, compared to January's 120 mm (4.7 in) across 19 days. Additionally, humidity levels are notably high in both months, with May at 87% and January at 92%. For a closer look at weather specifics, check out Grytviken weather in January.
In comparing the weather between May and February, it's clear that both months experience chilly temperatures, though May is consistently colder, with an average temperature of -2°C (29°F) compared to February's average of 2°C (37°F). While February typically enjoys slightly milder days, peaking at 9°C (48°F), May's maximum temperature only reaches 5°C (42°F). Precipitation is also notable in both months, with May receiving a total of 134 mm (5.3 in) over 20 days, while February has somewhat less with 117 mm (4.6 in) across 18 days. Humidity levels remain high in both months, with May at 87% and February slightly higher at 90%. For further details regarding February’s weather, you can check Grytviken weather in February.
When comparing the weather in March and May, it is evident that both months experience cold temperatures and considerable precipitation. March typically sees temperatures ranging from a minimum of -5°C (23°F) to a maximum of 7°C (45°F), with an average of 2°C (35°F), while May is slightly colder, with a minimum of -9°C (16°F), an average of -2°C (29°F), and a maximum of 5°C (42°F). In terms of precipitation, March receives 142 mm (5.6 in) over 22 days, whereas May has slightly less at 134 mm (5.3 in) over 20 days. Humidity levels are also comparable, with March at 90% and May at 87%. For more specific insights into March conditions, you can refer to Grytviken weather in March.
When comparing the weather in May to that of April, we can observe some notable differences. May experiences slightly lower temperatures, with a minimum of -9°C (16°F) and an average of -2°C (29°F), compared to April's minimum of -6°C (21°F) and average of 1°C (33°F). Additionally, while both months see considerable precipitation, May records 134 mm (5.3 in) over 20 days, slightly less than April's 143 mm (5.6 in) over 23 days. Lastly, humidity levels are quite similar, with May at 87% and April at 86%. These differences highlight a trend toward cooler temperatures and a decrease in precipitation days as spring progresses. For more details, you can check Grytviken weather in April.
In May, temperatures in Grytviken range from a minimum of -9°C (16°F) to a maximum of 5°C (42°F), with an average of -2°C (29°F). The month experiences significant rainfall, with 134 mm (5.3 in) of precipitation spread over 20 days and a humidity level of 87%. In contrast, June sees slightly colder temperatures, with a minimum of -11°C (13°F) and a maximum of 4°C (40°F), resulting in an average of -3°C (27°F). Additionally, June has less precipitation at 118 mm (4.6 in) over 19 days, accompanied by a slightly lower humidity of 85%. For further details about the weather conditions in June, you can visit Grytviken weather in June.
The weather in May and July presents a stark contrast in temperatures and conditions. In May, the minimum temperature is slightly warmer at -9°C (16°F), with an average of -2°C (29°F) and a maximum of 5°C (42°F). This month experiences significant precipitation, totaling 134 mm (5.3 in) over 20 days, along with high humidity at 87%. In contrast, July shows a further drop in temperature, with a minimum of -15°C (6°F) and an average of -4°C (25°F), leading to an average maximum of only 3°C (38°F). Despite slightly lower precipitation at 120 mm (4.7 in) over 19 days, July's humidity remains relatively high at 83%. For more details on the specifics of July weather conditions, you can check the following link: Grytviken weather in July.
In May, temperatures range from a minimum of -9°C (16°F) to a maximum of 5°C (42°F), with an average of -2°C (29°F). The month experiences about 134 mm (5.3 in) of precipitation over 20 days, coupled with a high humidity level of 87%. In contrast, August sees slightly colder temperatures, with a minimum of -13°C (8°F) and a maximum of 4°C (39°F), averaging -3°C (27°F). Precipitation in August increases to 159 mm (6.2 in), occurring over 22 days, while humidity remains relatively stable at 86%. For a more detailed look at the weather in August, you can visit Grytviken weather in August.
In comparing the weather of May and September, both months exhibit similar average temperatures, hovering around -2°C (30°F). However, May features a slightly higher maximum temperature of 5°C (42°F) compared to September's 4°C (39°F), while September experiences a slightly lower minimum temperature of -11°C (12°F) versus May's -9°C (16°F). Precipitation levels are also quite comparable, with May receiving 134 mm (5.3 in) and September slightly more at 138 mm (5.4 in), both spread across approximately 20 days and accompanied by a consistent humidity level of 87%. For more detailed information on September weather, visit Grytviken weather in September.
When comparing the weather in May and October, both months exhibit similar temperature ranges, with May experiencing a minimum of -9°C (16°F), an average of -2°C (29°F), and a maximum of 5°C (42°F), while October sees a minimum of -9°C (16°F), an average of -1°C (30°F), and a maximum of 5°C (41°F). Precipitation levels are fairly close, with May recording 134 mm (5.3 in) over 20 days, compared to October's 118 mm (4.7 in) across 19 days. Humidity remains consistently high in both months, at 87% for May and 86% for October, indicating a generally damp atmosphere. For a more detailed look at the conditions, you can check Grytviken weather in October.
May and November both exhibit chilly temperatures, but November tends to be slightly warmer overall. In May, temperatures drop to a minimum of -9°C (16°F) and average around -2°C (29°F), while November sees minimum temps of -6°C (21°F) and an average of 1°C (34°F). Both months experience similar precipitation, with May receiving 134 mm (5.3 in) and November 106 mm (4.2 in), although both months have rain on about 20 days. Humidity levels are high in both months, with November slightly more humid at 90% compared to May's 87%. For more specific insights on November conditions, check out Grytviken weather in November.
In May, the weather in Grytviken is characterized by colder temperatures, with minimums reaching -9°C (16°F) and average temperatures around -2°C (29°F). The month experiences significant precipitation of 134 mm (5.3 in) spread over 20 days, along with a high humidity level of 87%. In contrast, December sees slightly milder conditions with minimum temperatures around -2°C (28°F) and average temperatures of 2°C (35°F). Precipitation is slightly lower at 122 mm (4.8 in), occurring over 21 days, and the humidity rises to 90%. For more detailed information, you can explore Grytviken weather in December.
As May rolls into Grytviken, the weather takes a notable turn, characterized by a significant drop in temperatures compared to the preceding months. The maximum temperatures hover around a chilly 5°C (42°F), while the average dips to a brisk -2°C (29°F), ushering in the colder days of winter. This month also sees an increase in precipitation, with nearly 134 mm (5.3 in) falling over the course of 20 days, leading to a damp and humid atmosphere, with humidity levels peaking at 87%. These weather shifts create a stark contrast to the slightly warmer and drier conditions of April, making May a month of transition and preparation for the harsher winter ahead. For a more detailed look at Grytviken's weather patterns throughout the year, explore the full overview at Grytviken Climate.