Tristan Da Cunha (St Helena - Ascension and Tristan Da Cunha) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 11° Celsius;
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 11° Celsius; -
Maximum daytime temperature: 12° Celsius; Minimum nighttime temperature: 12° Celsius;
Maximum daytime temperature: 12° Celsius; Minimum nighttime temperature: 12° Celsius;
-
Maximum daytime temperature: 14° Celsius; Minimum nighttime temperature: 11° Celsius;
Maximum daytime temperature: 14° Celsius; Minimum nighttime temperature: 11° Celsius; -
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 13° Celsius; -
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 13° Celsius;
-
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 12° Celsius;
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 12° Celsius;
Sunny intervals changing to partly cloudy by nighttime.
Sunrise:
Sunset:
H UV
No pollution data.
No pollen data.
6 day forecast for Tristan Da Cunha
Tomorrow (17 September 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 |  |
 |
 |
|
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|
|
 |
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
| Chance of precipitation |
30%
|
50%
|
60%
|
50%
|
40%
|
30%
|
40%
|
40%
|
40%
|
30%
|
30%
|
40%
|
40%
|
40%
|
30%
|
30%
|
40%
|
30%
|
10%
|
10%
|
10%
|
10%
|
10%
|
20%
|
| Temperature |
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
| Feels like temperature (°C) |
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
9°
|
10°
|
10°
|
10°
|
10°
|
9°
|
9°
|
| Wind direction and speed |
NNE
6
|
NNE
7
|
NNE
8
|
NNE
7
|
NNE
6
|
NE
6
|
NE
6
|
E
7
|
E
8
|
E
9
|
ESE
9
|
ESE
9
|
SE
9
|
SE
9
|
SSE
10
|
SSE
11
|
SSE
12
|
S
13
|
S
14
|
S
13
|
S
14
|
S
15
|
S
15
|
S
14
|
| Wind gust (mph) |
11
|
12
|
12
|
12
|
12
|
11
|
11
|
12
|
13
|
14
|
14
|
15
|
15
|
16
|
17
|
18
|
19
|
20
|
19
|
20
|
21
|
20
|
20
|
20
|
| Visibility |
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 |
67%
|
69%
|
73%
|
73%
|
73%
|
73%
|
74%
|
74%
|
75%
|
75%
|
74%
|
74%
|
74%
|
73%
|
73%
|
73%
|
73%
|
74%
|
73%
|
69%
|
69%
|
69%
|
70%
|
68%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 4 | 3 | 6 | 5 | 5 | 3 | 1 | 1 | 1 | - | - | - | - | - |
Thursday (18 September 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 | |
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|
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|
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|
|
|
|
|
|
|
|
|
 |
|
|
|
|
| Chance of precipitation |
20%
|
10%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
30%
|
30%
|
10%
|
10%
|
20%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
| Feels like temperature (°C) |
9°
|
9°
|
9°
|
9°
|
10°
|
9°
|
10°
|
9°
|
9°
|
9°
|
10°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
| Wind direction and speed (mph) |
SSE
13
|
SSE
13
|
SSE
12
|
SSE
12
|
S
11
|
S
12
|
S
11
|
S
11
|
S
11
|
S
11
|
SSW
11
|
SW
11
|
WSW
12
|
WSW
13
|
WSW
14
|
WSW
14
|
WSW
15
|
WSW
16
|
WSW
17
|
WSW
16
|
WSW
16
|
WSW
16
|
W
16
|
W
16
|
| Wind gust (mph) |
19
|
18
|
18
|
17
|
17
|
17
|
17
|
18
|
17
|
17
|
17
|
18
|
19
|
20
|
20
|
22
|
23
|
24
|
24
|
24
|
23
|
23
|
23
|
24
|
| 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 |
67%
|
66%
|
66%
|
65%
|
65%
|
65%
|
66%
|
65%
|
66%
|
65%
|
64%
|
65%
|
65%
|
65%
|
67%
|
66%
|
65%
|
65%
|
64%
|
65%
|
65%
|
64%
|
65%
|
63%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 3 | 4 | 5 | 6 | 6 | 5 | 3 | 2 | 1 | 1 | - | - | - | - | - |
Friday (19 September 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%
|
10%
|
10%
|
30%
|
40%
|
60%
|
80%
|
70%
|
30%
|
20%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
10%
|
10%
|
| Temperature (°C) |
12°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
11°
|
11°
|
11°
|
| Feels like temperature (°C) |
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
8°
|
8°
|
8°
|
8°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
| Wind direction and speed (mph) |
W
17
|
W
17
|
WNW
18
|
WNW
20
|
WNW
22
|
WNW
23
|
WNW
24
|
WNW
26
|
WNW
26
|
NW
27
|
NW
27
|
NW
29
|
NW
30
|
WNW
31
|
W
31
|
WSW
31
|
SW
30
|
SW
28
|
SSW
28
|
SSW
27
|
SSW
26
|
SSW
25
|
SSW
25
|
SSW
24
|
| Wind gust (mph) |
24
|
26
|
27
|
30
|
32
|
34
|
35
|
36
|
37
|
38
|
40
|
42
|
44
|
45
|
46
|
45
|
43
|
41
|
41
|
38
|
37
|
36
|
36
|
35
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
M
|
G
|
VG
|
VG
|
G
|
G
|
G
|
G
|
G
|
VG
|
| Humidity |
64%
|
64%
|
66%
|
66%
|
67%
|
67%
|
69%
|
71%
|
73%
|
74%
|
75%
|
77%
|
79%
|
80%
|
82%
|
78%
|
72%
|
67%
|
67%
|
64%
|
62%
|
63%
|
62%
|
61%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 2 | 4 | 2 | 2 | 2 | 2 | 1 | 1 | - | - | - | - | - |
Saturday (20 September 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 |
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
| Feels like temperature (°C) |
7°
|
7°
|
7°
|
7°
|
8°
|
8°
|
8°
|
8°
|
9°
|
9°
|
9°
|
9°
|
10°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
| Wind direction and speed (mph) |
SSW
24
|
SSW
23
|
SSW
22
|
SSW
21
|
SSW
20
|
SSW
18
|
SSW
16
|
SW
15
|
SW
13
|
SW
14
|
SW
12
|
WSW
10
|
W
10
|
W
11
|
WNW
13
|
WNW
14
|
WNW
15
|
WNW
16
|
NW
18
|
NW
20
|
NW
22
|
NW
23
|
NW
24
|
NW
25
|
| Wind gust (mph) |
34
|
33
|
32
|
30
|
29
|
26
|
24
|
22
|
21
|
21
|
18
|
17
|
17
|
19
|
20
|
22
|
23
|
26
|
28
|
29
|
31
|
33
|
35
|
36
|
| Visibility (description) |
VG
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
VG
|
VG
|
VG
|
| Humidity |
58%
|
57%
|
57%
|
56%
|
56%
|
56%
|
55%
|
55%
|
54%
|
54%
|
54%
|
53%
|
53%
|
54%
|
54%
|
55%
|
56%
|
57%
|
59%
|
62%
|
63%
|
65%
|
66%
|
66%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 3 | 4 | 6 | 7 | 6 | 5 | 3 | 2 | 1 | 1 | - | - | - | - | - |
Sunday (21 September 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
 |
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
10%
|
20%
|
20%
|
30%
|
40%
|
| Temperature (°C) |
13°
|
14°
|
14°
|
14°
|
14°
|
15°
|
15°
|
15°
|
| Feels like temperature (°C) |
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
| Wind direction and speed (mph) |
NW
27
|
NW
28
|
NW
29
|
NW
30
|
NW
31
|
NW
31
|
NW
31
|
NW
31
|
| Wind gust (mph) |
40
|
41
|
41
|
42
|
43
|
44
|
44
|
43
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
68%
|
72%
|
76%
|
81%
|
84%
|
86%
|
86%
|
87%
|
| UV | - | - | 1 | 2 | 6 | 3 | 1 | - |
Monday (22 September 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
50%
|
50%
|
40%
|
30%
|
20%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
15°
|
14°
|
14°
|
13°
|
12°
|
12°
|
12°
|
12°
|
| Feels like temperature (°C) |
10°
|
10°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
| Wind direction and speed (mph) |
WNW
29
|
WNW
27
|
W
25
|
SW
21
|
S
16
|
S
17
|
S
17
|
ESE
17
|
| Wind gust (mph) |
40
|
39
|
37
|
29
|
27
|
25
|
25
|
24
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
| Humidity |
89%
|
87%
|
87%
|
84%
|
80%
|
78%
|
78%
|
77%
|
| UV | - | - | 1 | 2 | 6 | 3 | 1 | - |
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Forecast
Forecast for 00:00 (UTC), Wed
Updated 00:29 (UTC+1) on Wed 17 Sep 2025
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