April weather forecast
Castle Hill, Australia

April

Weather in April

April, the same as March, is another warm autumn month in Castle Hill, Australia, with temperature in the range of an average high of 23.2°C (73.8°F) and an average low of 14.6°C (58.3°F).

Temperature

The transition from March to April brings an average high-temperature of a still moderately hot 23.2°C (73.8°F), barely different from March's 26°C (78.8°F). Throughout the month of April, Castle Hill expects an average low of 14.6°C (58.3°F).

Humidity

In April, the average relative humidity is 73%.

Rainfall

In Castle Hill, Australia, in April, during 13.8 rainfall days, 41mm (1.61") of precipitation is typically accumulated. Throughout the year, there are 149.1 rainfall days, and 546mm (21.5") of precipitation is accumulated.

Daylight

In April, the average length of the day is 11h and 15min.
On the first day of April, sunrise is at 7:08 am and sunset at 6:51 pm AEDT. On the last day of the month, sunrise is at 6:29 am and sunset at 5:16 pm AEST.
Note: On Sunday, 07. April 2024, at 3:00 am, Daylight Saving Time ends, and the time zone changes from AEDT to AEST. Daylight Saving Time starts again on Sunday, 06. October 2024, at 2:00 am; consequently, the time zone reverts from AEST to AEDT.

Sunshine

In Castle Hill, the average sunshine in April is 7.8h.

UV index

In April, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 5 during April translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Employ a wide-brim hat for potent defense against up to 50% of UV rays.

Frequently asked questions

What are the temperatures in Castle Hill in April?
In Castle Hill, 23.2°C (73.8°F) is the average high-temperature and 14.6°C (58.3°F) is the average low-temperature during April. In February, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is evaluated at 30°C (86°F).
What is the average humidity in April in Castle Hill?
In April, the average relative humidity is 73%.
How many days does it rain in April in Castle Hill?
In April, in Castle Hill, the rain falls for 13.8 days. Throughout April, 41mm (1.61") of precipitation is accumulated.
What is the average length of the day in April in Castle Hill?
In April, the average day length is 11h and 15min.
When are sunrise and sunset in April in Castle Hill?
In April, on the first day of the month, sunrise is at 7:08 am and sunset at 6:51 pm AEDT. On the last day of the month, in Castle Hill, sunrise is at 6:29 am and sunset at 5:16 pm AEST.
When does Daylight Saving Time (DST) end in April in Castle Hill?
On Sunday, 07. April 2024, at 3:00 am, Daylight Saving Time ends, and the time zone changes from AEDT to AEST. The next DST starts on Sunday, 06. October 2024, at 2:00 am.
How many hours of sunshine does Castle Hill have in April?
The average sunshine duration in April in Castle Hill is 7.8h.
How high is the UV index in April in Castle Hill?
In Castle Hill, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in April
Castle Hill, Australia
  • Average high temperature in April: 23.2°C

The warmest month (with the highest average high temperature) is January (29.2°C).
The month with the lowest average high temperature is June (16.8°C).

  • Average low temperature in April: 14.6°C

The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is July (8.1°C).

Average pressure in April
Castle Hill, Australia
  • Average pressure in April: 1019.3mbar

The month with the highest atmospheric pressure is June (1021mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).

Average wind speed in April
Castle Hill, Australia
  • Average wind speed in April: 8.8km/h

The windiest month (with the highest average wind speed) is December (10.2km/h).
The calmest month (with the lowest average wind speed) is April (8.8km/h).

Average humidity in April
Castle Hill, Australia
  • Average humidity in April: 73%

The month with the highest relative humidity is June (76%).
The month with the lowest relative humidity is September (65%).

Average rainfall in April
Castle Hill, Australia
  • Average rainfall in April: 41mm

The wettest month (with the highest rainfall) is February (87mm).
The driest month (with the least rainfall) is May (27mm).

Average rainfall days in April
Castle Hill, Australia
  • Average rainfall days in April: 13.8 days

The month with the highest number of rainy days is March (17.6 days).
The month with the least rainy days is August (7.9 days).

Average daylight in April /
Average sunshine in April
Castle Hill, Australia
  • Average daylight in April: 11h and 2min

The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 10h and 0min).

  • Average sunshine in April: 7h and 5min

The months with the most sunshine are November and December (Average sunshine: 9h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).

Average sunshine days in April
Castle Hill, Australia
  • Average sunshine days in April: 13.4 days

The month with the most sunshine days is August (21 days).
The month with the least sunshine days is February (10.4 days).

Average UV index in April
Castle Hill, Australia
  • Average UV index in April: 5

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).

Average cloud cover in April
Castle Hill, Australia
  • Average cloud cover in April: 37

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in April
Castle Hill, Australia
  • Average visibility in April: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

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