September weather forecast
Exmouth, Australia

Weather in September

The first month of the spring, September, is also a moderately hot month in Exmouth, Australia, with temperature in the range of an average high of 27.4°C (81.3°F) and an average low of 19.3°C (66.7°F).

Temperature

In September, the average high-temperature is essentially the same as in August - a still moderately hot 27.4°C (81.3°F). In Exmouth, the average low-temperature is 19.3°C (66.7°F).

Heat index

In September, the average heat index is calculated to be 27.9°C (82.2°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, wind, metabolic differences, and differences in body mass, height, and shape affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In September, the average relative humidity is 51%.

Rainfall

Months with the least rainfall are September through November Rain falls for 0.8 days and accumulates 1mm (0.04") of rain.

Sea temperature

July through October, with an average sea temperature of 24°C (75.2°F), are months with the coldest seawater in Exmouth.
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 24°C (75.2°F) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 25°C (77°F) to 28°C (82.4°F).)

Daylight

In September, the average length of the day in Exmouth is 12h.

Sunshine

In Exmouth, the average sunshine is 9.9h.

UV index

May through September, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 6 in September interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in September in Exmouth?

In September, the average high-temperature is 27.4°C (81.3°F), and the average low-temperature is 19.3°C (66.7°F). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 27.9°C (82.2°F).

What is the average humidity in September in Exmouth?

In September, the average relative humidity is 51%.

What is the driest month in Exmouth?

September through November are months with the least rain in Exmouth, Australia, when the rain falls for 0.8 days and typically aggregates up to 1mm (0.04") of rain.

How many days does it rain in September in Exmouth?

In September, in Exmouth, the rain falls for 0.8 days. Throughout September, 1mm (0.04") of precipitation is accumulated.

When is the sea coldest in Exmouth?

July through October, with an average sea temperature of 24°C (75.2°F), are months with the coldest seawater in Exmouth, Australia.

What is the water temperature in September in Exmouth?

In September, the average sea temperature is 24°C (75.2°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 24°C (75.2°F) water may be enjoyable.

How many hours of daylight does Exmouth have in September?

In September, the average length of the day in Exmouth is 12h.

How long on average sun shines in September in Exmouth?

The average sunshine in September in Exmouth is 9.9h.

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

May through September, with an average maximum UV index of 6, are months with the lowest UV index in Exmouth, Australia.

How high is the UV index in September in Exmouth?

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to the Sun's UV rays.

Average temperature in September
Exmouth, Australia

Average temperature in September - Exmouth, Australia
  • Average high temperature in September: 27.4°C

The warmest month (with the highest average high temperature) is March (34.4°C).
The month with the lowest average high temperature is July (24.5°C).

  • Average low temperature in September: 19.3°C

The month with the highest average low temperature is February (27.3°C).
The coldest month (with the lowest average low temperature) is July (18.5°C).

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Average pressure in September
Exmouth, Australia

Average pressure in September - Exmouth, Australia
  • Average pressure in September: 1015.9mbar

The month with the highest atmospheric pressure is July (1017.7mbar).
The month with the lowest atmospheric pressure is January (1005.7mbar).

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Average wind speed in September
Exmouth, Australia

Average wind speed in September - Exmouth, Australia
  • Average wind speed in September: 22.3km/h

The windiest month (with the highest average wind speed) is November (24.6km/h).
The calmest month (with the lowest average wind speed) is April (18.2km/h).

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Average humidity in September
Exmouth, Australia

Average humidity in September - Exmouth, Australia
  • Average humidity in September: 51%

Months with the highest relative humidity are January and February (58%).
The month with the lowest relative humidity is May (48%).

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Average rainfall in September
Exmouth, Australia

Average rainfall in September - Exmouth, Australia
  • Average rainfall in September: 1mm

The wettest month (with the highest rainfall) is January (29mm).
The driest months (with the least rainfall) are September, October and November (1mm).

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Average rainfall days in September
Exmouth, Australia

Average rainfall days in September - Exmouth, Australia
  • Average rainfall days in September: 0.8 days

The month with the highest number of rainy days is January (8.3 days).
The month with the least rainy days is September (0.8 days).

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Average sea temperature in September
Exmouth, Australia

Average sea temperature in September - Exmouth, Australia
  • Average sea temperature in September: 24°C

The best months for swimming (with the highest average sea temperature) are February, March and April (28°C).
The coldest months (with the lowest average sea temperature) are July, August, September and October (24°C).

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Average daylight in September /
Average sunshine in September
Exmouth, Australia

Average daylight in September / Average sunshine in September - Exmouth, Australia
  • Average daylight in September: 12h

The month with the longest days is December (Average daylight: 13.5h).
The month with the shortest days is June (Average daylight: 10.8h).

  • Average sunshine in September: 9.9h

The month with the most sunshine is November (Average sunshine: 12.1h).
The month with the least sunshine is June (Average sunshine: 6.9h).

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Average sunshine days in September
Exmouth, Australia

Average sunshine days in September - Exmouth, Australia
  • Average sunshine days in September: 28.5 days

The month with the most sunshine days is October (29.4 days).
The month with the least sunshine days is February (20.6 days).

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Average UV index in September
Exmouth, Australia

Average UV index in September - Exmouth, Australia
  • Average UV index in September: 6

The month with the highest UV index is February (UV index 8).
Months with the lowest UV index are May, June, July, August and September (UV index 6).

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Average cloud cover in September
Exmouth, Australia

Average cloud cover in September - Exmouth, Australia
  • Average cloud cover in September: 5

The month with the most cloud cover is June (Cloud cover 20).
The month with the least cloud cover is September (Cloud cover 5).

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Average visibility in September
Exmouth, Australia

Average visibility in September - Exmouth, Australia
  • Average visibility in September: 10km

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

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