August weather forecast
Greenwich, Australia

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Weather in August

August, the last month of the winter in Greenwich, is another comfortable month, with an average temperature fluctuating between 17.8°C (64°F) and 9.8°C (49.6°F).

Temperature

The average high-temperature during August registers at a still enjoyable 17.8°C (64°F), maintaining a close resemblance to the previous month. August brings an average low-temperature of 9.8°C (49.6°F) to Greenwich.

Humidity

The months with the lowest humidity are August and September, with an average relative humidity of 66%.

Rainfall

In Greenwich, in August, during 10.1 rainfall days, 37mm (1.46") of precipitation is typically accumulated. Throughout the year, in Greenwich, Australia, there are 169 rainfall days, and 647mm (25.47") of precipitation is accumulated.

Sea temperature

In Greenwich, in August, the average water temperature is 18.8°C (65.8°F).
Note: Swimming is not a pleasant activity for most individuals in 18.8°C (65.8°F). Breathing becomes increasingly challenging to control as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).

Daylight

In Greenwich, the average length of the day in August is 10h and 53min.
On the first day of August in Greenwich, sunrise is at 6:47 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 5:36 pm AEST.

Sunshine

In August, the average sunshine is 8.5h.

UV index

May through September, with an average maximum UV index of 4, are months with the lowest UV index in Greenwich. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 4 during August translates into the following directions:
Undertake protective steps - Preventing sun damage is advised. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

What is the average August temperature in Greenwich?

Greenwich in August has an average high-temperature of 17.8°C (64°F) and an average low-temperature of 9.8°C (49.6°F). The average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, in January is calculated to be 30°C (86°F).

What are the least humid months in Greenwich?

August and September, with an average relative humidity of 66%, are the least humid months.

What is the average humidity in August in Greenwich?

The average relative humidity in August in Greenwich, Australia, is 66%.

How many days does it rain in August in Greenwich?

In Greenwich, Australia, during August, the rain falls for 10.1 days and regularly aggregates up to 37mm (1.46") of precipitation.

What is the sea temperature in August in Greenwich?

In Greenwich, the average seawater temperature in August is 18.8°C (65.8°F). For swimming, a surface water temperature of 18.8°C (65.8°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

What is the average length of the day in August in Greenwich?

The average day length in August in Greenwich is 10h and 53min.

When are sunrise and sunset in August in Greenwich?

On the first day of August in Greenwich, Australia, sunrise is at 6:47 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 5:36 pm AEST.

How long on average sun shines in August in Greenwich?

In August, the average sunshine duration in Greenwich is 8.5h.

What are the months with the lowest UV index in Greenwich?

May through September, with an average maximum UV index of 4, are months with the lowest UV index.

What is the UV index reading in August in Greenwich?

In August, the average daily maximum UV index in Greenwich, Australia, is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.

Average temperature in August
Greenwich, Australia

Average temperature in August - Greenwich, Australia
  • Average high temperature in August: 17.8°C

The warmest month (with the highest average high temperature) is January (27.3°C).
The month with the lowest average high temperature is July (16.6°C).

  • Average low temperature in August: 9.8°C

The month with the highest average low temperature is January (19.8°C).
The coldest month (with the lowest average low temperature) is July (9.7°C).

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Average pressure in August
Greenwich, Australia

Average pressure in August - Greenwich, Australia
  • Average pressure in August: 1018mbar

The month with the highest atmospheric pressure is June (1020.9mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).

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Average wind speed in August
Greenwich, Australia

Average wind speed in August - Greenwich, Australia
  • Average wind speed in August: 14km/h

The windiest months (with the highest average wind speed) are January and August (14km/h).
The calmest month (with the lowest average wind speed) is April (12.2km/h).

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Average humidity in August
Greenwich, Australia

Average humidity in August - Greenwich, Australia
  • Average humidity in August: 66%

The month with the highest relative humidity is February (75%).
The months with the lowest relative humidity are August and September (66%).

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Average rainfall in August
Greenwich, Australia

Average rainfall in August - Greenwich, Australia
  • Average rainfall in August: 37mm

The wettest month (with the highest rainfall) is February (92mm).
The driest month (with the least rainfall) is September (35mm).

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Average rainfall days in August
Greenwich, Australia

Average rainfall days in August - Greenwich, Australia
  • Average rainfall days in August: 10.1 days

The month with the highest number of rainy days is March (18.8 days).
The month with the least rainy days is August (10.1 days).

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Average sea temperature in August
Greenwich, Australia

Average sea temperature in August - Greenwich, Australia
  • Average sea temperature in August: 18.8°C

The best month for swimming (with the highest average sea temperature) is February (23.7°C).
The coldest month (with the lowest average sea temperature) is September (18.6°C).

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Average daylight in August /
Average sunshine in August
Greenwich, Australia

Average daylight in August / Average sunshine in August - Greenwich, Australia
  • Average daylight in August: 10h and 5min

The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).

  • Average sunshine in August: 8h and 3min

The month with the most sunshine is November (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).

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Average sunshine days in August
Greenwich, Australia

Average sunshine days in August - Greenwich, Australia
  • Average sunshine days in August: 17.9 days

The month with the most sunshine days is August (17.9 days).
The month with the least sunshine days is March (8.8 days).

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Average UV index in August
Greenwich, Australia

Average UV index in August - Greenwich, Australia
  • Average UV index in August: 4

The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 4).

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Average cloud cover in August
Greenwich, Australia

Average cloud cover in August - Greenwich, Australia
  • Average cloud cover in August: 24

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 24).

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Average visibility in August
Greenwich, Australia

Average visibility in August - Greenwich, Australia
  • Average visibility in August: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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Greenwich, Australia

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