Tristan Da Cunha (St Helena - Ascension and Tristan Da Cunha) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 14° Celsius; -
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 15° Celsius;
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 15° Celsius; -
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 18° Celsius;
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 18° Celsius;
-
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 18° Celsius;
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 18° Celsius; -
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 19° Celsius;
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 19° Celsius;
-
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 18° Celsius;
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 18° Celsius;
-
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 17° Celsius;
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 17° Celsius;
Light showers changing to sunny intervals by lunchtime.
Sunrise:
Sunset:
VH UV
No pollution data.
No pollen data.
7 day forecast for Tristan Da Cunha
Today (21 December 2025)
| Time |
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 |
50%
|
50%
|
60%
|
50%
|
50%
|
60%
|
70%
|
80%
|
80%
|
60%
|
40%
|
30%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature |
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
18°
|
18°
|
18°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
16°
|
16°
|
16°
|
15°
|
15°
|
| Feels like temperature (°C) |
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
15°
|
14°
|
13°
|
13°
|
13°
|
12°
|
12°
|
12°
|
11°
|
11°
|
11°
|
11°
|
11°
|
| Wind direction and speed |
NNW
17
|
NNW
17
|
NNW
17
|
NW
18
|
NW
18
|
NW
18
|
NW
18
|
NW
18
|
NW
18
|
WNW
18
|
WSW
18
|
SSW
19
|
S
21
|
S
23
|
SSE
23
|
SSE
23
|
SSE
23
|
SSE
24
|
SSE
25
|
SSE
26
|
SSE
25
|
SSE
24
|
SSE
24
|
| Wind gust (mph) |
22
|
23
|
24
|
24
|
24
|
24
|
24
|
25
|
25
|
26
|
26
|
28
|
30
|
31
|
31
|
32
|
33
|
35
|
35
|
35
|
35
|
34
|
33
|
| Visibility |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
M
|
M
|
M
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
94%
|
94%
|
95%
|
94%
|
94%
|
93%
|
94%
|
94%
|
94%
|
94%
|
92%
|
88%
|
84%
|
79%
|
79%
|
79%
|
81%
|
82%
|
79%
|
76%
|
75%
|
74%
|
72%
|
| UV | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 7 | 5 | 7 | 5 | 6 | 7 | 4 | 2 | 1 | 1 | 1 | - | - | - |
Monday (22 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) |
15°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
16°
|
16°
|
| Feels like temperature (°C) |
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
11°
|
11°
|
11°
|
12°
|
12°
|
12°
|
12°
|
13°
|
13°
|
13°
|
13°
|
13°
|
14°
|
14°
|
14°
|
| Wind direction and speed (mph) |
SE
23
|
SE
23
|
SE
22
|
SE
21
|
SE
21
|
SE
20
|
SE
20
|
ESE
19
|
ESE
18
|
ESE
17
|
ESE
17
|
ESE
16
|
ESE
15
|
ESE
14
|
E
14
|
E
13
|
E
13
|
E
12
|
E
11
|
E
11
|
E
10
|
ENE
10
|
ENE
10
|
ENE
10
|
| Wind gust (mph) |
33
|
32
|
31
|
30
|
30
|
29
|
28
|
28
|
26
|
25
|
24
|
23
|
23
|
22
|
20
|
20
|
19
|
18
|
17
|
17
|
17
|
16
|
15
|
16
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
G
|
G
|
VG
|
G
|
G
|
G
|
G
|
VG
|
VG
|
G
|
VG
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
| Humidity |
69%
|
67%
|
67%
|
66%
|
67%
|
68%
|
67%
|
66%
|
67%
|
66%
|
66%
|
66%
|
66%
|
65%
|
65%
|
65%
|
66%
|
66%
|
65%
|
66%
|
66%
|
66%
|
66%
|
66%
|
| UV | - | - | - | - | - | 1 | 1 | 1 | 3 | 6 | 9 | 11 | 12 | 12 | 10 | 8 | 5 | 3 | 1 | 1 | 1 | - | - | - |
Tuesday (23 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%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
<5%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
16°
|
16°
|
16°
|
16°
|
16°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
| Feels like temperature (°C) |
14°
|
14°
|
14°
|
14°
|
15°
|
15°
|
15°
|
15°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
| Wind direction and speed (mph) |
ENE
10
|
NE
10
|
NNE
10
|
NNE
10
|
NNE
10
|
N
10
|
N
10
|
N
9
|
NNW
8
|
NNW
8
|
NNW
8
|
NNW
9
|
NNW
9
|
NNW
10
|
NNW
10
|
NNW
10
|
NNW
10
|
NNW
11
|
NNW
12
|
NNW
12
|
NW
13
|
NW
13
|
NW
13
|
WNW
13
|
| Wind gust (mph) |
16
|
16
|
15
|
15
|
15
|
15
|
14
|
13
|
12
|
11
|
12
|
13
|
14
|
14
|
15
|
15
|
16
|
16
|
17
|
18
|
18
|
18
|
18
|
19
|
| Visibility (description) |
G
|
G
|
G
|
G
|
VG
|
G
|
G
|
G
|
VG
|
G
|
VG
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
G
|
VG
|
| Humidity |
66%
|
66%
|
67%
|
67%
|
68%
|
68%
|
67%
|
67%
|
67%
|
67%
|
67%
|
68%
|
68%
|
69%
|
69%
|
69%
|
70%
|
71%
|
71%
|
72%
|
75%
|
75%
|
75%
|
75%
|
| UV | - | - | - | - | - | 1 | 1 | 1 | 3 | 6 | 8 | 11 | 12 | 8 | 8 | 7 | 4 | 2 | 1 | 1 | 1 | - | - | - |
Wednesday (24 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 |
20%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
20%
|
10%
|
10%
|
10%
|
10%
|
10%
|
20%
|
| Temperature (°C) |
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
| Feels like temperature (°C) |
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
| Wind direction and speed (mph) |
WNW
14
|
WNW
14
|
WNW
14
|
WNW
14
|
WNW
14
|
WNW
14
|
WNW
14
|
WNW
13
|
NW
14
|
NW
14
|
NW
14
|
NW
14
|
NW
14
|
NW
15
|
NW
16
|
NW
16
|
NW
17
|
NW
17
|
NW
18
|
NW
17
|
NW
17
|
NW
17
|
NW
17
|
NW
17
|
| Wind gust (mph) |
19
|
19
|
20
|
20
|
19
|
19
|
18
|
19
|
19
|
19
|
18
|
19
|
19
|
20
|
21
|
22
|
23
|
24
|
23
|
23
|
24
|
24
|
23
|
23
|
| 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 |
78%
|
78%
|
78%
|
77%
|
77%
|
78%
|
79%
|
81%
|
82%
|
82%
|
83%
|
83%
|
84%
|
84%
|
84%
|
85%
|
85%
|
85%
|
85%
|
85%
|
85%
|
86%
|
87%
|
87%
|
| UV | - | - | - | - | - | 1 | 1 | 1 | 3 | 5 | 7 | 7 | 9 | 8 | 7 | 6 | 3 | 2 | 1 | 1 | 1 | - | - | - |
Thursday (25 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 |
10%
|
10%
|
10%
|
20%
|
10%
|
20%
|
20%
|
10%
|
20%
|
20%
|
10%
|
10%
|
10%
|
10%
|
20%
|
10%
|
20%
|
20%
|
20%
|
10%
|
20%
|
20%
|
10%
|
10%
|
| Temperature (°C) |
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
| Feels like temperature (°C) |
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
17°
|
16°
|
| Wind direction and speed (mph) |
NW
17
|
NW
17
|
NW
16
|
NW
17
|
NW
17
|
NW
16
|
NW
16
|
NW
16
|
NW
16
|
NW
16
|
NW
17
|
NW
16
|
NW
16
|
NW
17
|
NW
17
|
NW
16
|
NW
17
|
NW
17
|
NW
18
|
NW
17
|
NW
17
|
NW
17
|
NW
17
|
NW
18
|
| Wind gust (mph) |
23
|
22
|
22
|
22
|
22
|
21
|
21
|
22
|
22
|
22
|
22
|
22
|
22
|
22
|
22
|
22
|
23
|
23
|
23
|
23
|
23
|
23
|
23
|
25
|
| Visibility (description) |
VG
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
G
|
G
|
VG
|
VG
|
G
|
VG
|
G
|
G
|
G
|
| Humidity |
87%
|
88%
|
88%
|
87%
|
88%
|
89%
|
91%
|
91%
|
91%
|
91%
|
89%
|
88%
|
88%
|
87%
|
88%
|
88%
|
88%
|
87%
|
87%
|
87%
|
88%
|
89%
|
91%
|
92%
|
| UV | - | - | - | - | - | 1 | 1 | 2 | 3 | 6 | 8 | 11 | 12 | 12 | 10 | 8 | 5 | 3 | 1 | 1 | 1 | - | - | - |
Friday (26 December 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
10%
|
20%
|
30%
|
40%
|
50%
|
60%
|
30%
|
| Temperature (°C) |
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
| Feels like temperature (°C) |
16°
|
16°
|
16°
|
16°
|
15°
|
15°
|
15°
|
15°
|
| Wind direction and speed (mph) |
NW
18
|
NW
17
|
NW
18
|
NW
19
|
NW
21
|
NW
22
|
NW
23
|
NW
23
|
| Wind gust (mph) |
24
|
25
|
26
|
28
|
30
|
33
|
34
|
34
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
| Humidity |
92%
|
92%
|
91%
|
91%
|
92%
|
91%
|
90%
|
91%
|
| UV | - | - | 1 | 5 | 9 | 5 | 1 | - |
Saturday (27 December 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
40%
|
30%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
19°
|
19°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
| Feels like temperature (°C) |
15°
|
15°
|
14°
|
14°
|
14°
|
14°
|
14°
|
15°
|
| Wind direction and speed (mph) |
NW
22
|
W
21
|
WSW
22
|
WSW
21
|
WSW
18
|
WSW
19
|
WSW
19
|
WSW
16
|
| Wind gust (mph) |
36
|
34
|
34
|
27
|
27
|
27
|
25
|
22
|
| Visibility (description) |
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
89%
|
90%
|
85%
|
80%
|
76%
|
72%
|
70%
|
68%
|
| UV | - | - | 1 | 6 | 12 | 8 | 1 | - |
Tooltip header
UK video forecast
weather map
Forecast
Forecast for 1am (UTC) Sunday
Updated 00:21 (UTC) on Sun 21 Dec 2025
Loading map...
More from the Met Office
-
CAUSES OF CLIMATE CHANGE
Causes of climate change
Read -
SEASONAL ADVICE
When is hay fever season in the UK?
Read -
WEATHER
8 interesting facts about autumn
Read -
WEATHER
Cloud names and classifications
Read -
MET OFFICE FOR SCHOOLS
Make a rainbow DIY activity
Read -
SEASONAL ADVICE
5 tips for staying safe in a thunderstorm
Read