May weather forecastPort Willunga, Australia
May
Weather in May
The last month of the autumn, May, is another refreshing month in Port Willunga, Australia, with an average temperature varying between 12.9°C (55.2°F) and 17.2°C (63°F).Temperature
The beginning of May reveals an average high-temperature of an enjoyable 17.2°C (63°F), showing minimal deviation from the previous month. A mean low-temperature of 12.9°C (55.2°F) is a distinguishing feature of May, indicating a slight dip from daytime highs.Humidity
In Port Willunga, Australia, the average relative humidity in May is 70%.Rainfall
In Port Willunga, in May, during 15 rainfall days, 42mm (1.65") of precipitation is typically accumulated. Throughout the year, there are 138.9 rainfall days, and 363mm (14.29") of precipitation is accumulated.Sea temperature
In May, the average sea temperature in Port Willunga, Australia, is 17.4°C (63.3°F).Note: The enjoyment of swimming decreases for most when the surface water temperature is 17.4°C (63.3°F). Breathing control becomes increasingly challenging as temperatures descend below 21°C (69.8°F).
Daylight
In Port Willunga, Australia, the average length of the day in May is 10h and 17min.On the first day of the month, sunrise is at 6:53 am and sunset at 5:33 pm. On the last day of May, sunrise is at 7:15 am and sunset at 5:12 pm ACST.
Sunshine
The months with the least sunshine in Port Willunga, Australia, are May, July and August, with an average of 7h of sunshine.UV index
In May, the average daily maximum UV index in Port Willunga is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high UV index of 4 in May translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Port Willunga, Australia
- Average high temperature in May: 17.2°C
The warmest month (with the highest average high temperature) is January (24.9°C).
The month with the lowest average high temperature is July (14°C).
- Average low temperature in May: 12.9°C
The month with the highest average low temperature is February (17.7°C).
The coldest month (with the lowest average low temperature) is August (9.9°C).
Average pressure in May
Port Willunga, Australia
- Average pressure in May: 1020.7mbar
The month with the highest atmospheric pressure is June (1021.7mbar).
The month with the lowest atmospheric pressure is January (1012.5mbar).
Average wind speed in May
Port Willunga, Australia
- Average wind speed in May: 15.2km/h
The windiest month (with the highest average wind speed) is August (17.7km/h).
The calmest month (with the lowest average wind speed) is April (13.8km/h).
Average humidity in May
Port Willunga, Australia
- Average humidity in May: 70%
The months with the highest relative humidity are June and July (73%).
The month with the lowest relative humidity is January (61%).
Average rainfall in May
Port Willunga, Australia
- Average rainfall in May: 42mm
The wettest month (with the highest rainfall) is August (47mm).
The driest month (with the least rainfall) is January (17mm).
Average rainfall days in May
Port Willunga, Australia
- Average rainfall days in May: 15 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is February (6.3 days).
Average sea temperature in May
Port Willunga, Australia
- Average sea temperature in May: 17.4°C
The best month for swimming (with the highest average sea temperature) is February (20.7°C).
The coldest month (with the lowest average sea temperature) is August (13.8°C).
Average daylight in May /
Average sunshine in May
Port Willunga, Australia
- Average daylight in May: 10h and 18min
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 May: 7h
The month with the most sunshine is December (Average sunshine: 10h).
The months with the least sunshine are May, July and August (Average sunshine: 7h).
Average sunshine days in May
Port Willunga, Australia
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is August (10.8 days).
Average UV index in May
Port Willunga, Australia
- Average UV index in May: 4
The months with the highest UV index are January and December (UV index 6).
The month with the lowest UV index is July (UV index 3).
Average cloud cover in May
Port Willunga, Australia
- Average cloud cover in May: 42
The months with the most cloud cover are May and July (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 20).
Average visibility in May
Port Willunga, Australia
- Average visibility in May: 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).





