May weather forecastBirkenhead, Australia
May
Weather in May
The last month of the autumn, May, is another comfortable month in Birkenhead, Australia, with temperature in the range of an average high of 17.3°C (63.1°F) and an average low of 13°C (55.4°F).Temperature
May signifies a gentle decline in Birkenhead's average high-temperature, easing from an agreeable 20.8°C (69.4°F) in April to a refreshing 17.3°C (63.1°F). The nighttime temperature demonstrates a marginal decline, averaging at a moderate 13°C (55.4°F) during May.Humidity
In May, the average relative humidity is 69%.Rainfall
In Birkenhead, during May, the rain falls for 11.2 days and regularly aggregates up to 30mm (1.18") of precipitation. Throughout the year, in Birkenhead, there are 107.3 rainfall days, and 277mm (10.91") of precipitation is accumulated.Sea temperature
In May, the average sea temperature in Birkenhead, Australia, is 17.6°C (63.7°F).Note: Swimming becomes less enjoyable for most at a surface water temperature of 17.6°C (63.7°F). As the temperature decreases below 21°C (69.8°F), breathing becomes increasingly difficult.
Daylight
In Birkenhead, the average length of the day in May is 10h and 19min.On the first day of May, sunrise is at 6:52 am and sunset at 5:33 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:13 pm ACST.
Sunshine
In May, the average sunshine is 7.3h.UV index
May through September, with an average maximum UV index of 4, are months with the lowest UV index in Birkenhead. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In May, a daily maximum UV index of 4 leads to the following instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Birkenhead, Australia
- Average high temperature in May: 17.3°C
The warmest month (with the highest average high temperature) is January (25.9°C).
The month with the lowest average high temperature is July (14.2°C).
- Average low temperature in May: 13°C
The month with the highest average low temperature is January (18.3°C).
The coldest month (with the lowest average low temperature) is August (10°C).
Average pressure in May
Birkenhead, Australia
- Average pressure in May: 1020.8mbar
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 May
Birkenhead, Australia
- Average wind speed in May: 15.1km/h
The windiest month (with the highest average wind speed) is August (17.5km/h).
The calmest month (with the lowest average wind speed) is April (13.9km/h).
Average humidity in May
Birkenhead, Australia
- Average humidity in May: 69%
The month with the highest relative humidity is July (73%).
The month with the lowest relative humidity is January (58%).
Average rainfall in May
Birkenhead, Australia
- Average rainfall in May: 30mm
The wettest month (with the highest rainfall) is August (35mm).
The driest months (with the least rainfall) are January, February and March (14mm).
Average rainfall days in May
Birkenhead, Australia
- Average rainfall days in May: 11.2 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is February (4.8 days).
Average sea temperature in May
Birkenhead, Australia
- Average sea temperature in May: 17.6°C
The best months for swimming (with the highest average sea temperature) are January and February (21.3°C).
The coldest month (with the lowest average sea temperature) is August (13.7°C).
Average daylight in May /
Average sunshine in May
Birkenhead, Australia
- Average daylight in May: 10h and 18min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in May: 7h and 18min
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 12min).
Average sunshine days in May
Birkenhead, Australia
- Average sunshine days in May: 18.1 days
The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is July (15.8 days).
Average UV index in May
Birkenhead, Australia
- Average UV index in May: 4
The months with the highest UV index are January, February 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 May
Birkenhead, Australia
- Average cloud cover in May: 40
The months with the most cloud cover are May and July (Cloud cover 40).
The month with the least cloud cover is January (Cloud cover 19).
Average visibility in May
Birkenhead, 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).





