Siros National (Greece) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 6° Celsius;
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 6° Celsius; -
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 9° Celsius;
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 9° Celsius;
-
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 9° Celsius;
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 9° Celsius; -
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 8° Celsius;
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 8° Celsius; -
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 7° Celsius;
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 7° Celsius;
-
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 11° Celsius;
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 11° Celsius;
-
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 11° Celsius;
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 11° Celsius;
Clear.
Sunrise:
Sunset:
L UV
No pollution data.
No pollen data.
7 day forecast for Siros National
Today (17 December 2025)
| Time |
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|
| Weather symbols |  |
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature |
12°
|
11°
|
10°
|
9°
|
9°
|
9°
|
| Feels like temperature (°C) |
10°
|
9°
|
9°
|
8°
|
8°
|
8°
|
| Wind direction and speed |
N
9
|
N
8
|
N
7
|
N
7
|
N
5
|
N
5
|
| Wind gust (mph) |
14
|
13
|
12
|
11
|
10
|
10
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
67%
|
67%
|
69%
|
69%
|
69%
|
69%
|
| UV | - | - | - | - | - | - |
Friday (18 December 2025)
| 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) |
9°
|
9°
|
8°
|
8°
|
8°
|
8°
|
7°
|
6°
|
7°
|
12°
|
14°
|
15°
|
15°
|
15°
|
16°
|
15°
|
15°
|
13°
|
12°
|
11°
|
11°
|
11°
|
11°
|
11°
|
| Feels like temperature (°C) |
8°
|
7°
|
7°
|
6°
|
6°
|
6°
|
5°
|
4°
|
6°
|
11°
|
13°
|
14°
|
14°
|
15°
|
15°
|
14°
|
13°
|
11°
|
10°
|
9°
|
9°
|
9°
|
9°
|
9°
|
| Wind direction and speed (mph) |
NNW
5
|
NNW
5
|
NNW
6
|
NNW
6
|
NNW
7
|
NNW
7
|
NNW
6
|
NNW
6
|
N
5
|
N
5
|
NNW
5
|
NNW
5
|
NNW
6
|
NNW
6
|
NNW
7
|
NNW
8
|
NNW
8
|
NNW
8
|
N
8
|
N
8
|
N
8
|
N
9
|
N
8
|
N
9
|
| Wind gust (mph) |
10
|
10
|
11
|
11
|
11
|
11
|
10
|
10
|
9
|
10
|
10
|
10
|
10
|
11
|
12
|
12
|
13
|
13
|
13
|
13
|
13
|
13
|
13
|
14
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
70%
|
70%
|
69%
|
69%
|
69%
|
67%
|
67%
|
66%
|
66%
|
66%
|
65%
|
66%
|
66%
|
66%
|
67%
|
65%
|
65%
|
66%
|
66%
|
67%
|
66%
|
68%
|
68%
|
69%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | - | - | - | - | - | - |
Saturday (19 December 2025)
| 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%
|
10%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
20%
|
20%
|
| Temperature (°C) |
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
13°
|
15°
|
15°
|
15°
|
15°
|
15°
|
14°
|
14°
|
13°
|
12°
|
12°
|
12°
|
12°
|
11°
|
11°
|
| Feels like temperature (°C) |
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
8°
|
9°
|
9°
|
11°
|
13°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
11°
|
10°
|
10°
|
10°
|
10°
|
9°
|
9°
|
| Wind direction and speed (mph) |
N
9
|
NNW
9
|
NNW
9
|
N
10
|
N
10
|
N
10
|
N
10
|
N
10
|
NNW
10
|
N
10
|
NNW
9
|
NNW
10
|
NNW
10
|
NNW
9
|
N
8
|
N
8
|
N
9
|
N
9
|
N
10
|
NNE
9
|
NNE
9
|
NNE
9
|
NNE
9
|
NNE
9
|
| Wind gust (mph) |
14
|
14
|
15
|
15
|
16
|
16
|
16
|
15
|
16
|
15
|
15
|
15
|
15
|
14
|
13
|
15
|
15
|
15
|
15
|
14
|
15
|
14
|
15
|
16
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
71%
|
71%
|
71%
|
71%
|
70%
|
71%
|
69%
|
68%
|
67%
|
66%
|
66%
|
67%
|
66%
|
67%
|
67%
|
66%
|
68%
|
69%
|
69%
|
67%
|
67%
|
68%
|
68%
|
68%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - |
Sunday (20 December 2025)
| 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 |
30%
|
40%
|
30%
|
30%
|
20%
|
20%
|
30%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
<5%
|
| Temperature (°C) |
11°
|
11°
|
11°
|
11°
|
11°
|
12°
|
12°
|
11°
|
11°
|
13°
|
14°
|
15°
|
15°
|
15°
|
15°
|
15°
|
14°
|
13°
|
12°
|
12°
|
11°
|
11°
|
11°
|
10°
|
| Feels like temperature (°C) |
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
10°
|
9°
|
9°
|
11°
|
12°
|
13°
|
13°
|
13°
|
13°
|
13°
|
12°
|
11°
|
10°
|
9°
|
9°
|
9°
|
9°
|
8°
|
| Wind direction and speed (mph) |
NNE
10
|
NNE
10
|
NNE
10
|
NNE
10
|
NNE
10
|
NNE
11
|
NNE
10
|
NNE
10
|
NE
12
|
NE
11
|
NNE
10
|
NNE
10
|
NNE
10
|
NNE
11
|
NNE
10
|
NNE
11
|
NNE
11
|
NNE
11
|
NNE
11
|
NNE
11
|
NNE
11
|
NNE
10
|
NNE
10
|
NNE
9
|
| Wind gust (mph) |
15
|
15
|
16
|
16
|
17
|
16
|
16
|
16
|
17
|
16
|
16
|
16
|
17
|
17
|
16
|
16
|
17
|
17
|
17
|
17
|
16
|
15
|
15
|
15
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
70%
|
69%
|
72%
|
74%
|
75%
|
74%
|
74%
|
75%
|
75%
|
74%
|
72%
|
72%
|
73%
|
71%
|
71%
|
68%
|
68%
|
69%
|
69%
|
70%
|
71%
|
70%
|
70%
|
71%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | - | - | - | - | - | - |
Monday (21 December 2025)
| 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%
|
10%
|
10%
|
<5%
|
10%
|
10%
|
<5%
|
<5%
|
10%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
9°
|
10°
|
13°
|
14°
|
15°
|
15°
|
16°
|
15°
|
15°
|
15°
|
13°
|
12°
|
12°
|
11°
|
11°
|
10°
|
10°
|
| Feels like temperature (°C) |
9°
|
8°
|
8°
|
8°
|
8°
|
8°
|
7°
|
7°
|
8°
|
11°
|
13°
|
13°
|
14°
|
14°
|
14°
|
14°
|
13°
|
11°
|
10°
|
10°
|
9°
|
9°
|
9°
|
9°
|
| Wind direction and speed (mph) |
N
9
|
NNE
9
|
NNE
9
|
NNE
9
|
NNE
9
|
NNE
9
|
NNE
10
|
NNE
9
|
NNE
10
|
NE
9
|
NE
8
|
NE
9
|
NE
8
|
NE
8
|
NE
8
|
NE
8
|
NE
8
|
NE
8
|
NE
9
|
ENE
8
|
ENE
8
|
ENE
7
|
ENE
7
|
ENE
7
|
| Wind gust (mph) |
13
|
13
|
13
|
13
|
15
|
14
|
15
|
14
|
14
|
14
|
13
|
13
|
13
|
13
|
13
|
13
|
13
|
13
|
13
|
13
|
11
|
11
|
10
|
11
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
69%
|
69%
|
69%
|
69%
|
70%
|
70%
|
71%
|
71%
|
71%
|
71%
|
71%
|
71%
|
69%
|
71%
|
69%
|
69%
|
69%
|
69%
|
70%
|
69%
|
72%
|
72%
|
72%
|
71%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | - | - | - | - | - | - |
Tuesday (22 December 2025)
| Time |
00:00
|
01:00
|
02:00
|
05:00
|
08:00
|
11:00
|
14:00
|
17:00
|
20:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
30%
|
40%
|
| Temperature (°C) |
10°
|
9°
|
9°
|
9°
|
9°
|
15°
|
16°
|
13°
|
12°
|
13°
|
| Feels like temperature (°C) |
8°
|
8°
|
7°
|
7°
|
7°
|
14°
|
15°
|
12°
|
10°
|
11°
|
| Wind direction and speed (mph) |
NE
7
|
NE
8
|
ENE
8
|
NE
7
|
ENE
8
|
E
8
|
SE
8
|
SE
10
|
SSE
12
|
SSE
15
|
| Wind gust (mph) |
11
|
11
|
13
|
13
|
14
|
15
|
15
|
17
|
21
|
23
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
71%
|
71%
|
71%
|
72%
|
73%
|
72%
|
72%
|
72%
|
74%
|
75%
|
| UV | - | - | - | - | 1 | 2 | 1 | 1 | - | - |
Wednesday (23 December 2025)
| Time |
02:00
|
05:00
|
08:00
|
11:00
|
14:00
|
17:00
|
20:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
50%
|
30%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
| Temperature (°C) |
13°
|
14°
|
13°
|
16°
|
16°
|
15°
|
14°
|
14°
|
| Feels like temperature (°C) |
10°
|
10°
|
10°
|
13°
|
13°
|
11°
|
11°
|
11°
|
| Wind direction and speed (mph) |
S
16
|
S
18
|
S
17
|
S
19
|
S
18
|
S
18
|
S
18
|
SSW
17
|
| Wind gust (mph) |
26
|
27
|
26
|
26
|
25
|
26
|
26
|
23
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
| Humidity |
76%
|
74%
|
72%
|
73%
|
69%
|
71%
|
72%
|
71%
|
| UV | - | - | 1 | 2 | 1 | 1 | - | - |
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Forecast for 6pm (UTC+2) Thursday
Updated 12:36 (UTC) on Thu 18 Dec 2025
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