Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
The onset of January notes an average high-temperature of a still icy 2.6°C (36.7°F), subtly shifted from December's 1.9°C (35.4°F). Grytviken registers a steady nighttime temperature averaging a still wintry 0.5°C (32.9°F) throughout January.Humidity
The months with the highest humidity are January and February, with an average relative humidity of 91%.Rainfall
In Grytviken, South Georgia and the South Sandwich Islands, in January, during 20.4 rainfall days, 112mm (4.41") of precipitation is typically accumulated. In Grytviken, during the entire year, the rain falls for 168.8 days and collects up to 1190mm (46.85") of precipitation.Snowfall
January through December are months with snowfall in Grytviken. In Grytviken, South Georgia and the South Sandwich Islands, in January, snow falls for 15.7 days, with typically accumulated 208mm (8.19") of snow. Throughout the year, there are 193 snowfall days, and 3130mm (123.23") of snow is accumulated.Sea temperature
The months with the warmest seawater are January through April, with an average sea temperature of 3°C (37.4°F).Note: In swimming situations, this is a grave threat to life. The intense coldness of the water triggers extreme discomfort and rapid hyperventilation. A specialized swimsuit is required to mitigate thermal damage.
Daylight
The average length of the day in January in Grytviken, South Georgia and the South Sandwich Islands, is 16h and 28min.On the first day of January in Grytviken, South Georgia and the South Sandwich Islands, sunrise is at 03:56 and sunset at 21:02. On the last day of the month, sunrise is at 04:49 and sunset at 20:29 -02.
Sunshine
The average sunshine in January is 4.7h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 1. The months with the lowest UV index are January through December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In January, the maximum UV index of 1 translates into these guidelines:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Enhance your sun protection with tightly woven, yet airy clothing. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Grytviken in January?
What is the most humid month in Grytviken?
What is the average humidity in January in Grytviken?
How many days does it rain in January in Grytviken?
How much does it snow in Grytviken in January?
What are the months with the warmest sea water in Grytviken?
What is the sea temperature in January in Grytviken?
How many hours of daylight does Grytviken have in January?
When are sunrise and sunset in January in Grytviken?
How long on average sun shines in January in Grytviken?
What are the months with the highest UV index in Grytviken?
When is the lowest UV index in Grytviken?
How high is the UV index in January in Grytviken?
Average temperature in January
Grytviken, South Georgia and the South Sandwich Islands
- Average high temperature in January: 2.6°C
The warmest month (with the highest average high temperature) is February (3.1°C).
The month with the lowest average high temperature is August (-1.6°C).
- Average low temperature in January: 0.5°C
The month with the highest average low temperature is February (1°C).
The coldest month (with the lowest average low temperature) is August (-4.9°C).
Average pressure in January
Grytviken, South Georgia and the South Sandwich Islands
- Average pressure in January: 994.4mbar
The month with the highest atmospheric pressure is September (1002.1mbar).
The month with the lowest atmospheric pressure is December (992.9mbar).
Average wind speed in January
Grytviken, South Georgia and the South Sandwich Islands
- Average wind speed in January: 23.7km/h
The windiest month (with the highest average wind speed) is September (25.7km/h).
The calmest month (with the lowest average wind speed) is December (23.5km/h).
Average humidity in January
Grytviken, South Georgia and the South Sandwich Islands
- Average humidity in January: 91%
The months with the highest relative humidity are January and February (91%).
The months with the lowest relative humidity are July and August (87%).
Average rainfall in January
Grytviken, South Georgia and the South Sandwich Islands
- Average rainfall in January: 112mm
The wettest month (with the highest rainfall) is April (114mm).
The driest month (with the least rainfall) is October (82mm).
Average rainfall days in January
Grytviken, South Georgia and the South Sandwich Islands
- Average rainfall days in January: 20.4 days
The month with the highest number of rainy days is March (20.5 days).
The month with the least rainy days is August (7.8 days).
Average snowfall in January
Grytviken, South Georgia and the South Sandwich Islands
- Average snowfall in January: 208mm
The month with the highest snowfall is August (421mm).
The month with the least snowfall is March (125mm).
Average snowfall days in January
Grytviken, South Georgia and the South Sandwich Islands
- Average snowfall days in January: 15.7 days
The month with the highest number of snowfall days is August (19 days).
The month with the least snowfall days is February (11.7 days).
Average sea temperature in January
Grytviken, South Georgia and the South Sandwich Islands
- Average sea temperature in January: 3°C
The best months for swimming (with the highest average sea temperature) are January, February, March and April (3°C).
The coldest months (with the lowest average sea temperature) are August, September and October (0°C).
Average daylight in January /
Average sunshine in January
Grytviken, South Georgia and the South Sandwich Islands
- Average daylight in January: 16h and 3min
The month with the longest days is December (Average daylight: 17h and 6min).
The month with the shortest days is June (Average daylight: 7h and 24min).
- Average sunshine in January: 4h and 4min
The month with the most sunshine is October (Average sunshine: 5h and 48min).
The month with the least sunshine is August (Average sunshine: 3h and 0min).
Average sunshine days in January
Grytviken, South Georgia and the South Sandwich Islands
- Average sunshine days in January: 1.1 days
The months with the most sunshine days are September and November (4 days).
The month with the least sunshine days is January (1.1 days).
Average UV index in January
Grytviken, South Georgia and the South Sandwich Islands
- Average UV index in January: 1
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 1).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 1).
Average cloud cover in January
Grytviken, South Georgia and the South Sandwich Islands
- Average cloud cover in January: 73
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is October (Cloud cover 66).
Average visibility in January
Grytviken, South Georgia and the South Sandwich Islands
- Average visibility in January: 8km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (8km).
The months with the lowest visibility are July, August and September (7km).
Grytviken, South Georgia and the South Sandwich Islands
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