SeasonMapGrytviken (South Georgia) weather in September
South Georgia and the South Sandwich Islands
September in Grytviken: cold, rainy, with clean air — a hit-or-miss time to visit.
#7 of 12 months in Grytviken · #1264 of 1383 destinations to visit in September · comfort 47/100 (tier F)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Grytviken in September
No notes yet. Open Grytviken on the map to add the first one.
Grytviken climate normals — September
| Daytime high | 5°C / 40°F | 🧥 cold |
|---|---|---|
| Nighttime low | -1°C / 29°F | |
| Feels like (high) | 0°C / 32°F | |
| Sea temperature | 0°C / 33°F | 🥶 cold sea |
| Rainfall | 119 mm / 4.7 in | 🌧 rainy |
| Rainy days | 18 days | |
| Humidity | 91% | 💦 very humid |
| Dew point | -2°C / 28°F | |
| Sunshine | 7.2 h/day | |
| Daylight | 11.7 h | |
| Wind | 27 km/h / 17 mph | |
| Snowfall | 66 cm / 26 in | |
| Air quality (US AQI) | 30 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Grytviken in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 2 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Grytviken's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherGrytviken's weather peaks December–February, best around January.
Best weatherFair weatherToughest weather
What's on in Grytviken in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Rule
Permits and biosecurity checks
1 Jan – 31 DecBook earlyYou cannot arrive independently: visits run under a government permit through an approved operator, boots and velcro are inspected for seeds before every landing, no food goes ashore, and set distances from wildlife are enforced. Source ↗
- Season
Winter shutdown
1 Apr – 30 Sep · usuallyOff-season shutdownClosuresShips stop calling and the island is left to a handful of government staff, the museum team and the fisheries patrol. Nothing is open, nothing is scheduled, and there is no way for a visitor to get here.
- Season
Snow season
Ski seasonAbout 66 cm of snow falls in the month.
from the climate normals
Where is Grytviken?
Grytviken in September — FAQ
- Is September a good time to visit Grytviken?
- September in Grytviken: cold, rainy, with clean air — a hit-or-miss time to visit. It ranks #7 of 12 months for Grytviken on SeasonMap's comfort score (47/100).
- What is the weather like in Grytviken in September?
- In September, Grytviken averages a daily high of 4.7°C and a low of -1.5°C, with about 118.8 mm of rain over roughly 17.9 rainy days.
- What is the air quality in Grytviken in September?
- Grytviken has a mean US Air Quality Index of about 30 in September.
- Does it snow in Grytviken in September?
- Grytviken sees roughly 66 cm of snowfall in September.