Viana Do Castelo (Portugal) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 15° Celsius;
Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 15 degrees Celsius; -
Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 15° Celsius;
Maximum daytime temperature: 27 degrees Celsius; Minimum nighttime temperature: 15 degrees Celsius;
-
Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 16° Celsius;
Maximum daytime temperature: 27 degrees Celsius; Minimum nighttime temperature: 16 degrees Celsius;
-
Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 16° Celsius;
Maximum daytime temperature: 27 degrees Celsius; Minimum nighttime temperature: 16 degrees Celsius;
-
Maximum daytime temperature: 29° Celsius; Minimum nighttime temperature: 16° Celsius;
Maximum daytime temperature: 29 degrees Celsius; Minimum nighttime temperature: 16 degrees Celsius;
-
Maximum daytime temperature: 31° Celsius; Minimum nighttime temperature: 16° Celsius;
Maximum daytime temperature: 31 degrees Celsius; Minimum nighttime temperature: 16 degrees Celsius;
-
Maximum daytime temperature: 31° Celsius; Minimum nighttime temperature: 17° Celsius;
Maximum daytime temperature: 31 degrees Celsius; Minimum nighttime temperature: 17 degrees Celsius;
Clear.
Sunrise:
Sunset:
VH UV
No pollution data.
No pollen data.
7 day forecast for Viana Do Castelo
Today (10 August 2026)
| Time |
22:00
|
23:00
|
|---|---|---|
| Weather symbols |  |
|
| Chance of precipitation |
<5%
|
<5%
|
| Temperature |
18°
|
17°
|
| Feels like temperature (°C) |
18°
|
18°
|
| Wind direction and speed |
NW
5
|
NW
4
|
| Wind gust (mph) |
8
|
6
|
| Visibility |
G
|
G
|
| Humidity |
93%
|
96%
|
| UV | - | - |
Tuesday (11 August 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
 |
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
15°
|
15°
|
18°
|
20°
|
21°
|
23°
|
24°
|
26°
|
27°
|
27°
|
27°
|
26°
|
25°
|
24°
|
23°
|
20°
|
18°
|
18°
|
| Feels like temperature (°C) |
17°
|
17°
|
17°
|
17°
|
16°
|
16°
|
16°
|
16°
|
20°
|
21°
|
23°
|
24°
|
26°
|
27°
|
27°
|
27°
|
26°
|
25°
|
24°
|
24°
|
23°
|
20°
|
19°
|
18°
|
| Wind direction and speed (mph) |
NW
3
|
NNW
3
|
NNW
2
|
NNW
1
|
N
1
|
ENE
1
|
E
2
|
E
2
|
E
2
|
ESE
2
|
SSW
2
|
WSW
3
|
W
4
|
WNW
6
|
WNW
8
|
NW
10
|
NW
11
|
NW
11
|
NW
10
|
NNW
8
|
NW
8
|
NW
6
|
NW
5
|
NW
3
|
| Wind gust (mph) |
6
|
4
|
3
|
3
|
3
|
3
|
3
|
4
|
4
|
6
|
8
|
10
|
13
|
17
|
19
|
20
|
20
|
20
|
18
|
14
|
10
|
9
|
7
|
6
|
| Visibility (description) |
G
|
G
|
G
|
M
|
M
|
M
|
P
|
P
|
P
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
| Humidity |
96%
|
97%
|
98%
|
98%
|
99%
|
99%
|
99%
|
100%
|
99%
|
92%
|
84%
|
77%
|
69%
|
65%
|
59%
|
57%
|
56%
|
59%
|
64%
|
70%
|
77%
|
93%
|
96%
|
97%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 4 | 6 | 8 | 9 | 8 | 7 | 5 | 3 | 2 | 1 | 1 | - | - | - |
Wednesday (12 August 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
 |
|
 |
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
17°
|
17°
|
17°
|
16°
|
16°
|
16°
|
16°
|
17°
|
18°
|
19°
|
20°
|
21°
|
23°
|
25°
|
26°
|
26°
|
26°
|
26°
|
25°
|
24°
|
23°
|
20°
|
19°
|
18°
|
| Feels like temperature (°C) |
18°
|
18°
|
18°
|
17°
|
17°
|
17°
|
17°
|
18°
|
20°
|
21°
|
22°
|
23°
|
25°
|
26°
|
27°
|
28°
|
27°
|
26°
|
26°
|
24°
|
23°
|
21°
|
20°
|
19°
|
| Wind direction and speed (mph) |
NW
3
|
WSW
1
|
SSE
2
|
SSE
1
|
SSE
1
|
SE
1
|
ESE
2
|
ESE
2
|
SE
2
|
SSE
2
|
SSW
3
|
SW
3
|
WSW
4
|
W
5
|
W
6
|
W
6
|
WNW
7
|
WNW
7
|
NW
7
|
NW
7
|
NW
6
|
NW
5
|
NW
4
|
WNW
3
|
| Wind gust (mph) |
4
|
3
|
3
|
3
|
3
|
3
|
3
|
5
|
6
|
7
|
8
|
10
|
12
|
13
|
15
|
15
|
15
|
14
|
13
|
12
|
10
|
8
|
6
|
5
|
| Visibility (description) |
G
|
G
|
G
|
M
|
M
|
M
|
VP
|
VP
|
VP
|
M
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
| Humidity |
97%
|
97%
|
97%
|
98%
|
99%
|
99%
|
100%
|
100%
|
99%
|
95%
|
91%
|
83%
|
75%
|
71%
|
66%
|
65%
|
65%
|
66%
|
69%
|
73%
|
82%
|
93%
|
96%
|
97%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 4 | 6 | 8 | 9 | 8 | 7 | 5 | 3 | 2 | 1 | 1 | - | - | - |
Thursday (13 August 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
17°
|
17°
|
17°
|
16°
|
16°
|
17°
|
17°
|
18°
|
18°
|
19°
|
20°
|
21°
|
23°
|
25°
|
26°
|
26°
|
26°
|
26°
|
25°
|
24°
|
23°
|
20°
|
19°
|
18°
|
| Feels like temperature (°C) |
19°
|
18°
|
18°
|
17°
|
17°
|
18°
|
19°
|
19°
|
20°
|
21°
|
22°
|
23°
|
24°
|
26°
|
26°
|
27°
|
26°
|
26°
|
25°
|
24°
|
24°
|
21°
|
20°
|
19°
|
| Wind direction and speed (mph) |
WNW
2
|
WSW
1
|
S
1
|
SE
2
|
SE
2
|
SE
2
|
SE
2
|
ESE
2
|
SE
2
|
SSE
2
|
SSW
2
|
WSW
3
|
W
4
|
W
6
|
WNW
8
|
WNW
9
|
NW
10
|
NW
10
|
NW
9
|
NW
9
|
NW
7
|
NW
6
|
NW
4
|
NW
3
|
| Wind gust (mph) |
3
|
3
|
3
|
3
|
3
|
3
|
3
|
4
|
5
|
6
|
8
|
10
|
13
|
15
|
17
|
19
|
20
|
18
|
16
|
14
|
10
|
8
|
6
|
5
|
| Visibility (description) |
G
|
G
|
M
|
M
|
VP
|
VP
|
VP
|
VP
|
VP
|
M
|
M
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
| Humidity |
97%
|
97%
|
97%
|
98%
|
99%
|
99%
|
100%
|
100%
|
100%
|
98%
|
92%
|
86%
|
78%
|
73%
|
65%
|
63%
|
62%
|
65%
|
68%
|
73%
|
83%
|
94%
|
96%
|
96%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 5 | 8 | 8 | 8 | 7 | 5 | 3 | 1 | 1 | 1 | - | - | - |
Friday (14 August 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
17°
|
17°
|
17°
|
17°
|
16°
|
16°
|
16°
|
16°
|
18°
|
19°
|
21°
|
23°
|
25°
|
27°
|
29°
|
29°
|
29°
|
28°
|
27°
|
25°
|
24°
|
23°
|
22°
|
21°
|
| Feels like temperature (°C) |
19°
|
19°
|
18°
|
18°
|
17°
|
17°
|
17°
|
17°
|
19°
|
21°
|
22°
|
23°
|
25°
|
27°
|
27°
|
27°
|
26°
|
25°
|
25°
|
24°
|
23°
|
22°
|
21°
|
20°
|
| Wind direction and speed (mph) |
NNW
2
|
N
2
|
NNE
2
|
N
2
|
N
2
|
NNE
2
|
NNE
2
|
NNE
2
|
NNE
3
|
N
3
|
NNW
5
|
NNW
8
|
NNW
10
|
NNW
11
|
NNW
13
|
NNW
15
|
NNW
16
|
NNW
16
|
NW
15
|
NNW
13
|
NNW
12
|
NNW
12
|
NNW
11
|
NNW
10
|
| Wind gust (mph) |
4
|
4
|
3
|
4
|
4
|
4
|
4
|
4
|
6
|
10
|
15
|
18
|
21
|
23
|
26
|
28
|
29
|
28
|
25
|
22
|
21
|
20
|
19
|
17
|
| Visibility (description) |
G
|
G
|
G
|
M
|
M
|
P
|
VP
|
VP
|
VP
|
M
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
| Humidity |
96%
|
96%
|
97%
|
98%
|
99%
|
99%
|
100%
|
100%
|
100%
|
95%
|
85%
|
77%
|
67%
|
57%
|
51%
|
48%
|
50%
|
52%
|
57%
|
64%
|
68%
|
74%
|
77%
|
81%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 4 | 6 | 8 | 9 | 8 | 7 | 5 | 3 | 1 | 1 | 1 | - | - | - |
Saturday (15 August 2026)
| Time |
00:00
|
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
20°
|
19°
|
17°
|
16°
|
23°
|
29°
|
31°
|
29°
|
23°
|
| Feels like temperature (°C) |
19°
|
19°
|
17°
|
16°
|
23°
|
28°
|
30°
|
26°
|
23°
|
| Wind direction and speed (mph) |
N
9
|
N
9
|
N
7
|
N
5
|
N
8
|
NNW
12
|
NNW
15
|
NNW
14
|
N
10
|
| Wind gust (mph) |
16
|
14
|
14
|
14
|
22
|
27
|
28
|
24
|
16
|
| Visibility (description) |
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
86%
|
91%
|
95%
|
97%
|
72%
|
45%
|
42%
|
46%
|
77%
|
| UV | - | - | - | 1 | 4 | 9 | 5 | 1 | - |
Sunday (16 August 2026)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
19°
|
17°
|
16°
|
22°
|
29°
|
31°
|
27°
|
22°
|
| Feels like temperature (°C) |
19°
|
17°
|
16°
|
23°
|
28°
|
29°
|
26°
|
22°
|
| Wind direction and speed (mph) |
N
6
|
NNE
5
|
NNE
4
|
N
4
|
NW
8
|
NW
12
|
NNW
8
|
NNW
7
|
| Wind gust (mph) |
9
|
8
|
8
|
16
|
22
|
22
|
15
|
11
|
| Visibility (description) |
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
91%
|
94%
|
97%
|
71%
|
45%
|
42%
|
51%
|
83%
|
| UV | - | - | 1 | 4 | 8 | 5 | 1 | - |
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Forecast
Forecast for 11pm (UTC+1) Monday
Updated 19:18 (UTC+1) on Mon 10 Aug 2026
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