17.05
sun
sun
Day
70°F
S 8 mph
Precip.
0%
0%
Night
63°F
E 4 mph
Precip.
100%
100%
18.05
mon
mon
Day
68°F
N 6 mph
Precip.
0%
0%
Night
63°F
SE 3 mph
Precip.
100%
100%
19.05
tue
tue
Day
63°F
NE 8 mph
Precip.
100%
100%
Night
59°F
NE 20 mph
Precip.
100%
100%
20.05
wed
wed
Day
64°F
NE 19 mph
Precip.
0%
0%
Night
59°F
NE 14 mph
Precip.
0%
0%
21.05
thu
thu
Day
63°F
N 14 mph
Precip.
0%
0%
Night
57°F
NE 14 mph
Precip.
74%
74%
22.05
fri
fri
Day
61°F
NE 17 mph
Precip.
0%
0%
Night
57°F
NE 8 mph
Precip.
100%
100%
23.05
sat
sat
Day
63°F
E 4 mph
Precip.
0%
0%
Night
59°F
NE 7 mph
Precip.
0%
0%
24.05
sun
sun
Day
63°F
N 11 mph
Precip.
100%
100%
Night
61°F
N 9 mph
Precip.
100%
100%
25.05
mon
mon
Day
61°F
N 11 mph
Precip.
82%
82%
Night
59°F
N 9 mph
Precip.
0%
0%
26.05
tue
tue
Day
61°F
N 14 mph
Precip.
100%
100%
Night
61°F
NW 10 mph
Precip.
75%
75%
27.05
wed
wed
Day
63°F
W 11 mph
Precip.
100%
100%
Night
61°F
W 9 mph
Precip.
100%
100%
28.05
thu
thu
Day
64°F
W 7 mph
Precip.
86%
86%
Night
61°F
W 7 mph
Precip.
100%
100%
29.05
fri
fri
Day
61°F
NE 14 mph
Precip.
100%
100%
Night
59°F
E 4 mph
Precip.
27%
27%
30.05
sat
sat
Day
66°F
E 4 mph
Precip.
0%
0%
Night
63°F
NE 4 mph
Precip.
0%
0%
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 68.1°F. The highest and lowest sea temperatures during the month were 69.6°F and 65.5°F.
Air temperature in Sydney, °F
Precipitation total in Sydney, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Sydney
Sydney on a weather map
Places in Australia:
Name
°F
24 Hours Forecast
Sydney
Local time: 07:32
May 17, sunday
0900
64°F
S
5 mph
5 mph
1200
70°F
S
8 mph
8 mph
1500
68°F
SW
8 mph
8 mph
1800
66°F
S
6 mph
6 mph
2100
64°F
SE
4 mph
4 mph
May 18, monday
0000
63°F
E
4 mph
4 mph
0300
61°F
E
5 mph
5 mph
0600
63°F
NE
3 mph
3 mph
