April weather forecastAdelaide, Australia
April
Weather in April
April brings the authenticity of fall to Adelaide, registering lower temperatures and increased rainfall. The average high temperature experiences a significant decline to 20.8°C (69.4°F) and rainfall sums up to 28mm (1.1") over 9.4 days. The gradual approach of winter becomes unmistakably evident as daylight hours shrink to 11.2 hours on average. The landscapes transform dramatically as leaves take on hues of orange and brown, adding an element of charm to the city. Looking forward, May posits the onset of a cooler season with more pronounced changes in weather patterns.Temperature
April's advent denotes a minor fluctuation in the average high-temperature to an agreeable 20.8°C (69.4°F) from March's 23.7°C (74.7°F). April is noted for a mean low-temperature of 14.5°C (58.1°F).Humidity
In Adelaide, the average relative humidity in April is 65%.Rainfall
In Adelaide, Australia, in April, during 9.4 rainfall days, 28mm (1.1") of precipitation is typically accumulated. Throughout the year, in Adelaide, there are 126.2 rainfall days, and 326mm (12.83") of precipitation is accumulated.Sea temperature
In Adelaide, the average seawater temperature in April is 18°C (64.4°F).Note: Most people find it challenging to enjoy swimming in water that is 18°C (64.4°F). As water temperature falls below 21°C (69.8°F), controlling breathing grows increasingly difficult.
Daylight
The average length of the day in April in Adelaide is 11h and 13min.On the first day of the month, sunrise is at 7:28 am and sunset at 7:10 pm ACDT. On the last day of April, in Adelaide, Australia, sunrise is at 6:51 am and sunset at 5:34 pm ACST.
Note: On Sunday, 07. April 2024, at 3:00 am, Daylight Saving Time ends, and the time zone changes from ACDT to ACST. Daylight Saving Time starts again on Sunday, 06. October 2024, at 2:00 am; consequently, the time zone reverts from ACST to ACDT.
Sunshine
In April, the average sunshine in Adelaide is 8h.UV index
In Adelaide, Australia, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In April, the maximum UV index of 4 suggests these recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Adelaide, Australia
- Average high temperature in April: 20.8°C
The warmest month (with the highest average high temperature) is January (26.3°C).
The month with the lowest average high temperature is July (13.9°C).
- Average low temperature in April: 14.5°C
The month with the highest average low temperature is January (17.8°C).
The coldest month (with the lowest average low temperature) is August (9.1°C).
Average pressure in April
Adelaide, Australia
- Average pressure in April: 1019.6mbar
The month with the highest atmospheric pressure is June (1021.8mbar).
The month with the lowest atmospheric pressure is January (1012.4mbar).
Average wind speed in April
Adelaide, Australia
- Average wind speed in April: 12.9km/h
The windiest month (with the highest average wind speed) is August (16.3km/h).
The calmest month (with the lowest average wind speed) is April (12.9km/h).
Average humidity in April
Adelaide, Australia
- Average humidity in April: 65%
The months with the highest relative humidity are June and July (74%).
The month with the lowest relative humidity is January (58%).
Average rainfall in April
Adelaide, Australia
- Average rainfall in April: 28mm
The wettest month (with the highest rainfall) is August (43mm).
The driest month (with the least rainfall) is March (16mm).
Average rainfall days in April
Adelaide, Australia
- Average rainfall days in April: 9.4 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is February (6.2 days).
Average sea temperature in April
Adelaide, Australia
- Average sea temperature in April: 18°C
The best month for swimming (with the highest average sea temperature) is February (20°C).
The coldest months (with the lowest average sea temperature) are August, September and October (15°C).
Average daylight in April /
Average sunshine in April
Adelaide, Australia
- Average daylight in April: 11h and 12min
The month with the longest days is December (Average daylight: 14h and 30min).
The month with the shortest days is June (Average daylight: 9h and 48min).
- Average sunshine in April: 8h and 0min
The month with the most sunshine is December (Average sunshine: 10h and 6min).
The month with the least sunshine is August (Average sunshine: 7h and 6min).
Average sunshine days in April
Adelaide, Australia
- Average sunshine days in April: 17.8 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is August (12.7 days).
Average UV index in April
Adelaide, Australia
- Average UV index in April: 4
The months with the highest UV index are February and December (UV index 6).
The month with the lowest UV index is June (UV index 3).
Average cloud cover in April
Adelaide, Australia
- Average cloud cover in April: 32
The month with the most cloud cover is July (Cloud cover 41).
The month with the least cloud cover is January (Cloud cover 20).
Average visibility in April
Adelaide, Australia
- Average visibility in April: 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).





