September weather forecast
Monkey Mia, Australia

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Weather in September

September in Monkey Mia marks the inception of spring, characterized by a subtle rise in temperature and a decrease in rainfall. In distinction to August, there’s more daylight and fewer clouds floating in the sky. The decrease in rainfall also results in dry and beautiful days, with a slight uptick in sunshine hours parameter. Consequently, outdoor activities become more inviting this month and adventure addicts can leverage the season to explore the stunning landscapes of Monkey Mia.

Temperature

The average high-temperature in September, at a still agreeable 21.4°C (70.5°F), reveals a modest deviation from August's 21°C (69.8°F). The September average low temperature, marginally lower than the daytime high, records at a comfortable 18.6°C (65.5°F).

Humidity

In Monkey Mia, Australia, the average relative humidity in September is 65%.

Rainfall

In Monkey Mia, during September, the rain falls for 5 days and regularly aggregates up to 5mm (0.2") of precipitation. Throughout the year, in Monkey Mia, there are 59.2 rainfall days, and 139mm (5.47") of precipitation is accumulated.

Sea temperature

The months with the coldest seawater are August through November, with an average sea temperature of 22°C (71.6°F).
Note: Factor in your tolerance to cold, the sunshine, the wind, and the air's warmth, and a swim in 22°C (71.6°F) might be tempting. It is interesting to note that Olympians compete in 25°C (77°F) to 28°C (82.4°F) water temperatures.

Daylight

In Monkey Mia, the average length of the day in September is 11h and 56min.
On the first day of the month, sunrise is at 6:37 am and sunset at 6:13 pm. On the last day of September, in Monkey Mia, Australia, sunrise is at 6:05 am and sunset at 6:24 pm AWST.

Sunshine

In Monkey Mia, the average sunshine in September is 9.5h.

UV index

June through September, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 5 in September translates into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.
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Frequently asked questions

What are the temperatures in Monkey Mia in September?

In Monkey Mia, in September, the average high-temperature is 21.4°C (70.5°F), and the average low-temperature is 18.6°C (65.5°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in March is computed to be 30°C (86°F).

What is the average humidity in September in Monkey Mia?

In Monkey Mia, Australia, the average relative humidity in September is 65%.

How much does it rain in Monkey Mia in September?

In Monkey Mia, Australia, in September, it is raining for 5 days, with typically 5mm (0.2") of accumulated precipitation.

What months are the sea coldest in Monkey Mia?

The months with the coldest seawater in Monkey Mia, Australia, are August through November, with an average sea temperature of 22°C (71.6°F).

How warm is the water in September in Monkey Mia?

In Monkey Mia, in September, the average water temperature is 22°C (71.6°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 22°C (71.6°F) water may be enjoyable.

What is the average length of the day in September in Monkey Mia?

In September, the average day length in Monkey Mia, Australia, is 11h and 56min.

What time are sunrise and sunset in September in Monkey Mia?

On the first day of September, sunrise is at 6:37 am and sunset at 6:13 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 6:24 pm AWST.

How many hours of sunshine does Monkey Mia have in September?

In Monkey Mia, the average sunshine duration in September is 9.5h.

What are the months with the lowest UV index in Monkey Mia?

The months with the lowest UV index are June through September, with an average maximum UV index of 5.

How high is the UV index in September in Monkey Mia?

In Monkey Mia, Australia, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.

Average temperature in September
Monkey Mia, Australia

Average temperature in September - Monkey Mia, Australia
  • Average high temperature in September: 21.4°C

The warmest month (with the highest average high temperature) is March (28.1°C).
The month with the lowest average high temperature is August (21°C).

  • Average low temperature in September: 18.6°C

The month with the highest average low temperature is February (25.1°C).
The coldest month (with the lowest average low temperature) is August (18.3°C).

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Average pressure in September
Monkey Mia, Australia

Average pressure in September - Monkey Mia, Australia
  • Average pressure in September: 1017.8mbar

The month with the highest atmospheric pressure is July (1019.6mbar).
The month with the lowest atmospheric pressure is January (1007.4mbar).

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Average wind speed in September
Monkey Mia, Australia

Average wind speed in September - Monkey Mia, Australia
  • Average wind speed in September: 27.4km/h

The windiest month (with the highest average wind speed) is December (33.1km/h).
The calmest month (with the lowest average wind speed) is July (23.9km/h).

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Average humidity in September
Monkey Mia, Australia

Average humidity in September - Monkey Mia, Australia
  • Average humidity in September: 65%

The months with the highest relative humidity are January, February and December (71%).
The month with the lowest relative humidity is May (59%).

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Average rainfall in September
Monkey Mia, Australia

Average rainfall in September - Monkey Mia, Australia
  • Average rainfall in September: 5mm

The wettest month (with the highest rainfall) is June (36mm).
The driest month (with the least rainfall) is November (3mm).

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Average rainfall days in September
Monkey Mia, Australia

Average rainfall days in September - Monkey Mia, Australia
  • Average rainfall days in September: 5 days

The month with the highest number of rainy days is June (9.6 days).
The months with the least rainy days are February and November (2.5 days).

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Average sea temperature in September
Monkey Mia, Australia

Average sea temperature in September - Monkey Mia, Australia
  • Average sea temperature in September: 22°C

The best months for swimming (with the highest average sea temperature) are March and April (26°C).
The coldest months (with the lowest average sea temperature) are August, September, October and November (22°C).

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Average daylight in September /
Average sunshine in September
Monkey Mia, Australia

Average daylight in September / Average sunshine in September - Monkey Mia, Australia
  • Average daylight in September: 11h and 5min

The month with the longest days is December (Average daylight: 13h and 42min).
The month with the shortest days is June (Average daylight: 10h and 36min).

  • Average sunshine in September: 9h and 3min

The month with the most sunshine is December (Average sunshine: 11h and 42min).
The month with the least sunshine is June (Average sunshine: 6h and 42min).

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Average sunshine days in September
Monkey Mia, Australia

Average sunshine days in September - Monkey Mia, Australia
  • Average sunshine days in September: 22.5 days

The month with the most sunshine days is March (27.4 days).
The month with the least sunshine days is June (19.4 days).

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Average UV index in September
Monkey Mia, Australia

Average UV index in September - Monkey Mia, Australia
  • Average UV index in September: 5

The months with the highest UV index are January, February and March (UV index 7).
The months with the lowest UV index are June, July, August and September (UV index 5).

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Average cloud cover in September
Monkey Mia, Australia

Average cloud cover in September - Monkey Mia, Australia
  • Average cloud cover in September: 14

The month with the most cloud cover is June (Cloud cover 23).
The months with the least cloud cover are October and December (Cloud cover 13).

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Average visibility in September
Monkey Mia, Australia

Average visibility in September - Monkey Mia, Australia
  • Average visibility in September: 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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Monkey Mia, Australia

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