Weather in Portoroz: May
 |
Average day temperature: | 70.0°F |
| Average night temperature: | 53.8°F | |
 |
Sea water temperature: | 64.2°F |
 |
Number of sunny days: | 14 days |
| Day length: | 14.3 - 15.4 hours | |
 |
Number of rainy days: | 7 days |
| Precipitation totals: | 3.9 in. | |
| more information | ||
14 days
forecast
forecast
| Portoroz |
sea water
temperature
temperature
| Portoroz |
Air temperature in May, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
12
24
36
48
60
72
84
96
| Day temperature | Night temperature |
The highest day temperature during May of 2024 was 74°F. At the same time the lowest night temperature was 46°F. Daily and nightly averages during May were 68.3°F and 54.4°F.
Sea water temperature in Portoroz in May, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
53
57
61
65
69
73
77
The average sea water temperature in May of 2024 was 64.5°F. The highest and lowest sea temperatures during the month were 70.2°F and 59.0°F.
Sunny, partly cloudy and cloudy days
| Sunny days | |
| Partly cloudy days | |
| Cloudy days |
35%
32%
32%
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.8
1.6
2.4
3.2
4.0
4.8
5.6
4.7
4.6
3.3
4.6
2.7
2.6
2.9
3.2
2.4
3.1
2.1
4.7
4.6
3.3
4.6
2.7
2.6
2.9
4.6
3.2
2.4
3.1
2.1
Precipitation total value in Portoroz in May is 4.6 in. Other months of the year show relatively similar values.
Wind speed in May, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.1
2.1
3.2
4.3
5.3
6.4
7.4
4.9
5.8
5.3
5.5
5.1
4.9
5.0
6.0
6.2
5.7
5.3
4.9
5.8
5.3
5.5
5.1
4.9
5.0
5.5
6.0
6.2
5.7
5.3
The average wind speed value in May is 5.5 mph
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.9
3.8
5.6
7.5
9.4
11.3
13.2
4.1
4.9
6.3
8.3
10.3
11.0
10.9
7.1
6.9
5.2
4.5
4.1
4.9
6.3
8.3
10.3
11.0
10.9
7.6
7.1
6.9
5.2
4.5
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 7.6.
Best time for vacation in Portoroz
Portoroz on a weather map
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Places in Slovenia:
Name
°F
24 Hours Forecast
Portoroz
Local time: 09:27
April 01, tuesday
1200
57°F
SW
16 mph
16 mph
1500
55°F
SW
17 mph
17 mph
1800
54°F
SW
19 mph
19 mph
2100
48°F
SW
17 mph
17 mph
April 02, wednesday
0000
52°F
SW
15 mph
15 mph
0300
50°F
SW
12 mph
12 mph
0600
48°F
SW
13 mph
13 mph
0900
55°F
SW
14 mph
14 mph
