17.05
sun
sun
Day
63°F
NE 11 mph
Precip.
0%
0%
Night
48°F
SE 11 mph
Precip.
0%
0%
18.05
mon
mon
Day
52°F
SE 14 mph
Precip.
0%
0%
Night
39°F
NE 7 mph
Precip.
0%
0%
19.05
tue
tue
Day
48°F
N 7 mph
Precip.
70%
70%
Night
48°F
NW 1 mph
Precip.
0%
0%
20.05
wed
wed
Day
72°F
E 14 mph
Precip.
0%
0%
Night
57°F
E 15 mph
Precip.
0%
0%
21.05
thu
thu
Day
48°F
SE 19 mph
Precip.
0%
0%
Night
41°F
E 9 mph
Precip.
0%
0%
22.05
fri
fri
Day
50°F
E 14 mph
Precip.
0%
0%
Night
45°F
NE 9 mph
Precip.
0%
0%
23.05
sat
sat
Day
45°F
E 4 mph
Precip.
100%
100%
Night
43°F
W 1 mph
Precip.
0%
0%
24.05
sun
sun
Day
48°F
W 4 mph
Precip.
82%
82%
Night
43°F
N 2 mph
Precip.
0%
0%
25.05
mon
mon
Day
46°F
N 4 mph
Precip.
69%
69%
Night
45°F
SE 2 mph
Precip.
75%
75%
26.05
tue
tue
Day
50°F
SW 5 mph
Precip.
79%
79%
Night
43°F
NW 4 mph
Precip.
0%
0%
27.05
wed
wed
Day
54°F
NW 11 mph
Precip.
0%
0%
Night
45°F
SW 5 mph
Precip.
0%
0%
28.05
thu
thu
Day
48°F
SW 4 mph
Precip.
88%
88%
Night
50°F
W 2 mph
Precip.
0%
0%
29.05
fri
fri
Day
57°F
NW 6 mph
Precip.
61%
61%
Night
54°F
N 7 mph
Precip.
0%
0%
30.05
sat
sat
Day
61°F
N 11 mph
Precip.
0%
0%
Night
52°F
N 7 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 39.2°F. The highest and lowest sea temperatures during the month were 41.0°F and 36.5°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 Canada:
Name
°F
24 Hours Forecast
Sydney
Local time: 17:28
May 17, sunday
1800
61°F
E
10 mph
10 mph
2100
52°F
SE
9 mph
9 mph
May 18, monday
0000
48°F
SE
11 mph
11 mph
0300
46°F
SE
12 mph
12 mph
0600
45°F
SE
12 mph
12 mph
0900
50°F
SE
14 mph
14 mph
1200
52°F
SE
14 mph
14 mph
1500
52°F
SE
16 mph
16 mph
