July weather forecast
Grytviken, South Georgia and the South Sandwich Islands

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Weather in July

The mid-year month, July, brings slight improvements in the weather of Grytviken. In this month, Grytviken endures the coolest temperature, with the mercury dipping to a lowest of -4.7°C (23.5°F). Precipitation of rain continues to decline, reaching 94mm (3.7"). Daylight hours continue to evade the city, making it one of the darkest months of the year. Moreover, the number of sunny days significantly drops, and the wind speed remains persistent, adding to the overall chillness of July.

Temperature

Grytviken's weather in July, with an average high-temperature of a still freezing cold -1.4°C (29.5°F), subtly shifts from June's -0.4°C (31.3°F). An average temperature of -4.7°C (23.5°F) is logged during the nights of July in Grytviken, a small step down from daytime highs.

Humidity

The months with the lowest humidity are July and August, with an average relative humidity of 87%.

Rainfall

In Grytviken, during July, the rain falls for 9.5 days and regularly aggregates up to 94mm (3.7") of precipitation. Throughout the year, in Grytviken, there are 168.8 rainfall days, and 1190mm (46.85") of precipitation is accumulated.

Snowfall

January through December are months with snowfall. In Grytviken, during July, snow falls for 18.6 days and regularly aggregates up to 292mm (11.5") of snow. In Grytviken, during the entire year, snow falls for 193 days and aggregates up to 3130mm (123.23") of snow.

Sea temperature

In Grytviken, South Georgia and the South Sandwich Islands, in July, the average water temperature is 1°C (33.8°F).
Note: During swimming, this scenario is excessively cold, hazardous, and can lead to fatality. Hypothermia ensues swiftly without suitable insulated waterproof wear.

Daylight

In July, the average length of the day is 7h and 55min.
On the first day of the month, sunrise is at 08:47 and sunset at 16:12. On the last day of July, in Grytviken, South Georgia and the South Sandwich Islands, sunrise is at 08:13 and sunset at 16:51 -02.

Sunshine

In July, the average sunshine in Grytviken is 3.3h.

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 in Grytviken are January through December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In July, a regular UV index of 1 translates into these guidelines:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

How cold is July in Grytviken?

In July, in Grytviken, the average high-temperature is -1.4°C (29.5°F), and the average low-temperature is -4.7°C (23.5°F).

What is the least humid month in Grytviken?

July and August, with an average relative humidity of 87%, are the least humid months.

What is the average humidity in July in Grytviken?

In July, the average relative humidity in Grytviken, South Georgia and the South Sandwich Islands, is 87%.

How much does it rain in Grytviken in July?

In July, in Grytviken, the rain falls for 9.5 days. Throughout July, 94mm (3.7") of precipitation is accumulated.

How much does it snow in Grytviken in July?

In Grytviken, in July, during 18.6 snowfall days, 292mm (11.5") of snow is typically accumulated.

What is the sea temperature in July in Grytviken?

In July, the average sea temperature is 1°C (33.8°F). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

What is the average length of the day in July in Grytviken?

In Grytviken, the average day length in July is 7h and 55min.

When is the sunrise / sunset in July in Grytviken?

On the first day of July in Grytviken, South Georgia and the South Sandwich Islands, sunrise is at 08:47 and sunset at 16:12. On the last day of the month, sunrise is at 08:13 and sunset at 16:51 -02.

How long on average sun shines in July in Grytviken?

The average sunshine duration in July in Grytviken is 3.3h.

When is the highest UV index in Grytviken?

January through December, with an average maximum UV index of 1, are months with the highest UV index in Grytviken.

What is the month with the lowest UV index in Grytviken?

The months with the lowest UV index in Grytviken are January through December, with an average maximum UV index of 1.

What is the UV index intensity in July in Grytviken?

In Grytviken, South Georgia and the South Sandwich Islands, the average daily maximum UV index in July is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Grytviken, South Georgia and the South Sandwich Islands

Average temperature in July - Grytviken, South Georgia and the South Sandwich Islands
  • Average high temperature in July: -1.4°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 July: -4.7°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).

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Average pressure in July
Grytviken, South Georgia and the South Sandwich Islands

Average pressure in July - Grytviken, South Georgia and the South Sandwich Islands
  • Average pressure in July: 999.8mbar

The month with the highest atmospheric pressure is September (1002.1mbar).
The month with the lowest atmospheric pressure is December (992.9mbar).

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Average wind speed in July
Grytviken, South Georgia and the South Sandwich Islands

Average wind speed in July - Grytviken, South Georgia and the South Sandwich Islands
  • Average wind speed in July: 25.5km/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).

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Average humidity in July
Grytviken, South Georgia and the South Sandwich Islands

Average humidity in July - Grytviken, South Georgia and the South Sandwich Islands
  • Average humidity in July: 87%

The months with the highest relative humidity are January and February (91%).
The months with the lowest relative humidity are July and August (87%).

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Average rainfall in July
Grytviken, South Georgia and the South Sandwich Islands

Average rainfall in July - Grytviken, South Georgia and the South Sandwich Islands
  • Average rainfall in July: 94mm

The wettest month (with the highest rainfall) is April (114mm).
The driest month (with the least rainfall) is October (82mm).

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Average rainfall days in July
Grytviken, South Georgia and the South Sandwich Islands

Average rainfall days in July - Grytviken, South Georgia and the South Sandwich Islands
  • Average rainfall days in July: 9.5 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).

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Average snowfall in July
Grytviken, South Georgia and the South Sandwich Islands

Average snowfall in July - Grytviken, South Georgia and the South Sandwich Islands
  • Average snowfall in July: 292mm

The month with the highest snowfall is August (421mm).
The month with the least snowfall is March (125mm).

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Average snowfall days in July
Grytviken, South Georgia and the South Sandwich Islands

Average snowfall days in July - Grytviken, South Georgia and the South Sandwich Islands
  • Average snowfall days in July: 18.6 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).

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Average sea temperature in July
Grytviken, South Georgia and the South Sandwich Islands

Average sea temperature in July - Grytviken, South Georgia and the South Sandwich Islands
  • Average sea temperature in July: 1°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).

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Average daylight in July /
Average sunshine in July
Grytviken, South Georgia and the South Sandwich Islands

Average daylight in July / Average sunshine in July - Grytviken, South Georgia and the South Sandwich Islands
  • Average daylight in July: 7h and 5min

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 July: 3h and 2min

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).

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Average sunshine days in July
Grytviken, South Georgia and the South Sandwich Islands

Average sunshine days in July - Grytviken, South Georgia and the South Sandwich Islands
  • Average sunshine days in July: 2.9 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).

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Average UV index in July
Grytviken, South Georgia and the South Sandwich Islands

Average UV index in July - Grytviken, South Georgia and the South Sandwich Islands
  • Average UV index in July: 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).

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Average cloud cover in July
Grytviken, South Georgia and the South Sandwich Islands

Average cloud cover in July - Grytviken, South Georgia and the South Sandwich Islands
  • Average cloud cover in July: 69

The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is October (Cloud cover 66).

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Average visibility in July
Grytviken, South Georgia and the South Sandwich Islands

Average visibility in July - Grytviken, South Georgia and the South Sandwich Islands
  • Average visibility in July: 7km

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).

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Grytviken, South Georgia and the South Sandwich Islands

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