September weather forecast
Christmas Island, Christmas Island

Bluewater waves hitting the rocky coast of Christmas Island, in Australia
Bluewater waves hitting the rocky coast of Christmas Island, in Australia

Weather in September

The first month of the spring, September, is also a moderately hot month in Christmas Island, Christmas Island, with an average temperature varying between 27.2°C (81°F) and 23.2°C (73.8°F).

Temperature

In September, the average high-temperature is essentially the same as in August - a still moderately hot 27.2°C (81°F). The average low-temperature, in Christmas Island, Christmas Island, is 23.2°C (73.8°F).

Rainfall

In Christmas Island, during September, the rain falls for 8 days and regularly aggregates up to 47mm (1.85") of precipitation. In Christmas Island, during the entire year, the rain falls for 152 days and collects up to 2101mm (82.72") of precipitation.

Sea temperature

With an average sea temperature of 26°C (78.8°F), September is the month with the coldest seawater in Christmas Island.
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In September, the average length of the day in Christmas Island is 12h and 3min.
On the first day of the month, sunrise is at 06:00 and sunset at 17:54. On the last day of September, in Christmas Island, sunrise is at 05:41 and sunset at 17:52 +07.

Sunshine

With an average of 8h of sunshine, September has the least sunshine of the year in Christmas Island.

UV index

January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an excessive health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 12 in September transform into the following instructions:
Take all required precautions, as unprotected skin and eyes can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. 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 Christmas Island?

In September, in Christmas Island, Christmas Island, the average high-temperature is 27.2°C (81°F), and the average low-temperature is 23.2°C (73.8°F).

How much does it rain in Christmas Island in September?

In Christmas Island, in September, it is raining for 8 days, with typically 47mm (1.85") of accumulated precipitation.

What month is the sea coldest in Christmas Island?

The month with the coldest seawater in Christmas Island, Christmas Island, is September, with an average sea temperature of 26°C (78.8°F).

What is the water temperature in September in Christmas Island?

In Christmas Island, in September, the average water temperature is 26°C (78.8°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Christmas Island have in September?

In September, the average day length in Christmas Island, Christmas Island, is 12h and 3min.

When is the sunrise / sunset in September in Christmas Island?

In September, on the first day of the month, sunrise is at 06:00 and sunset at 17:54. On the last day of the month, sunrise is at 05:41 and sunset at 17:52 +07.

What is the month with the least sunshine in Christmas Island?

The month with the least sunshine in Christmas Island, Christmas Island, is September, with an average of 8h of sunshine.

How many hours of sunshine does Christmas Island have in September?

The average sunshine duration in September is 8h.

When is the highest UV index in Christmas Island?

January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index in Christmas Island.

What is the UV index reading in September in Christmas Island?

In September, the average daily maximum UV index in Christmas Island is 12. A UV Index reading of 11, and higher, represents an excessive health risk from unprotected exposure to UV radiation.
Average rainfall days
Average sunshine
Average UV index

Average temperature in September
Christmas Island, Christmas Island

Average temperature in September - Christmas Island, Christmas Island
  • Average high temperature in September: 27.2°C

The warmest months (with the highest average high temperature) are March and April (29.2°C).
The month with the lowest average high temperature is August (27°C).

  • Average low temperature in September: 23.2°C

The month with the highest average low temperature is May (24.8°C).
The coldest months (with the lowest average low temperature) are August and September (23.2°C).

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Average rainfall in September
Christmas Island, Christmas Island

Average rainfall in September - Christmas Island, Christmas Island
  • Average rainfall in September: 47mm

The wettest month (with the highest rainfall) is February (348.4mm).
The driest month (with the least rainfall) is August (43.1mm).

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Average rainfall days in September
Christmas Island, Christmas Island

Average rainfall days in September - Christmas Island, Christmas Island
  • Average rainfall days in September: 8 days

The month with the highest number of rainy days is March (22 days).
The month with the least rainy days is September (8 days).

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Average sea temperature in September
Christmas Island, Christmas Island

Average sea temperature in September - Christmas Island, Christmas Island
  • Average sea temperature in September: 26°C

The best months for swimming (with the highest average sea temperature) are February, March, April and May (29°C).
The coldest month (with the lowest average sea temperature) is September (26°C).

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Average daylight in September /
Average sunshine in September
Christmas Island, Christmas Island

Average daylight in September / Average sunshine in September - Christmas Island, Christmas Island
  • Average daylight in September: 12h and 3min

The month with the longest days is December (Average daylight: 12h and 44min).
The month with the shortest days is June (Average daylight: 11h and 31min).

  • Average sunshine in September: 8h

The month with the most sunshine is March (Average sunshine: 22h).
The month with the least sunshine is September (Average sunshine: 8h).

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Average UV index in September
Christmas Island, Christmas Island

Average UV index in September - Christmas Island, Christmas Island
  • Average UV index in September: 12

The months with the highest UV index are January, February, March, April, September, October, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 9).

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