Ascension (St Helena - Ascension and Tristan Da Cunha) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius;
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius; -
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius;
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius;
-
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius;
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius;
-
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius;
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius;
-
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius;
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius; -
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius;
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius;
-
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 24° Celsius;
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 24° Celsius;
Overcast changing to sunny intervals by lunchtime.
Sunrise:
Sunset:
Ex UV
No pollution data.
No pollen data.
7 day forecast for Ascension
Today (19 December 2025)
| Time |
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%
|
| Temperature |
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
| Feels like temperature (°C) |
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
22°
|
22°
|
22°
|
22°
|
22°
|
| Wind direction and speed |
ESE
17
|
ESE
17
|
SE
17
|
SE
17
|
SE
17
|
SE
17
|
SE
17
|
SE
17
|
SE
17
|
SE
17
|
SE
17
|
SE
17
|
SE
17
|
SE
17
|
ESE
16
|
ESE
16
|
SE
15
|
ESE
16
|
ESE
16
|
ESE
16
|
| Wind gust (mph) |
23
|
22
|
22
|
23
|
23
|
23
|
23
|
23
|
23
|
23
|
23
|
23
|
23
|
22
|
22
|
22
|
21
|
22
|
22
|
22
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
76%
|
76%
|
77%
|
76%
|
77%
|
76%
|
76%
|
76%
|
76%
|
76%
|
76%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
| UV | - | - | 1 | 1 | 2 | 5 | 8 | 9 | 10 | 12 | 10 | 7 | 4 | 1 | 1 | 1 | - | - | - | - |
Saturday (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 | |
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|
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|
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|
|
|
|
|
|
|
|
|
|
|
| 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) |
24°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
| Feels like temperature (°C) |
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
21°
|
22°
|
22°
|
22°
|
22°
|
22°
|
23°
|
22°
|
22°
|
22°
|
22°
|
22°
|
| Wind direction and speed (mph) |
ESE
15
|
ESE
15
|
ESE
14
|
SE
14
|
SE
14
|
SE
14
|
SE
13
|
SE
14
|
SE
14
|
SE
15
|
SE
15
|
SE
15
|
SE
16
|
SE
15
|
SE
14
|
SE
14
|
SE
14
|
SE
13
|
SE
13
|
SE
14
|
SE
14
|
SE
14
|
SE
15
|
SE
15
|
| Wind gust (mph) |
21
|
20
|
20
|
19
|
19
|
19
|
19
|
20
|
20
|
21
|
21
|
21
|
21
|
21
|
20
|
19
|
19
|
19
|
19
|
19
|
20
|
20
|
20
|
21
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
| Humidity |
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
74%
|
74%
|
74%
|
74%
|
74%
|
74%
|
74%
|
74%
|
74%
|
75%
|
| UV | - | - | - | - | - | - | 1 | 1 | 2 | 5 | 8 | 10 | 12 | 11 | 9 | 8 | 4 | 2 | 1 | 1 | - | - | - | - |
Sunday (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%
|
<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) |
24°
|
24°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
| Feels like temperature (°C) |
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
21°
|
21°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
21°
|
22°
|
22°
|
| Wind direction and speed (mph) |
SE
15
|
SE
15
|
SE
14
|
SE
14
|
SE
14
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
16
|
SE
16
|
SE
17
|
SE
16
|
SE
16
|
| Wind gust (mph) |
21
|
20
|
20
|
20
|
21
|
21
|
21
|
21
|
21
|
22
|
22
|
21
|
21
|
21
|
21
|
22
|
22
|
22
|
22
|
22
|
22
|
22
|
22
|
22
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
| Humidity |
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
74%
|
74%
|
74%
|
74%
|
74%
|
74%
|
| UV | - | - | - | - | - | - | 1 | 1 | 2 | 5 | 8 | 11 | 12 | 12 | 11 | 8 | 4 | 2 | 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) |
24°
|
24°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
| Feels like temperature (°C) |
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
| Wind direction and speed (mph) |
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
16
|
SE
16
|
SE
16
|
SE
16
|
SE
16
|
SE
16
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
15
|
SE
14
|
SE
14
|
SE
14
|
SE
14
|
SE
14
|
| Wind gust (mph) |
22
|
22
|
21
|
21
|
21
|
22
|
22
|
22
|
23
|
23
|
22
|
22
|
21
|
21
|
21
|
21
|
21
|
21
|
21
|
21
|
20
|
20
|
20
|
20
|
| Visibility (description) |
VG
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
74%
|
74%
|
74%
|
74%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
74%
|
75%
|
75%
|
74%
|
74%
|
74%
|
74%
|
74%
|
74%
|
73%
|
73%
|
73%
|
73%
|
74%
|
| UV | - | - | - | - | - | - | 1 | 1 | 2 | 5 | 7 | 11 | 9 | 11 | 11 | 7 | 4 | 2 | 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%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
24°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
| Feels like temperature (°C) |
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
| Wind direction and speed (mph) |
SE
13
|
SE
13
|
SE
13
|
SE
12
|
SE
12
|
SE
12
|
SE
13
|
SE
13
|
SE
13
|
SE
13
|
SE
13
|
SE
12
|
SE
12
|
SE
12
|
SE
12
|
SE
12
|
SE
12
|
SE
12
|
SE
12
|
SE
12
|
SE
12
|
SE
12
|
SE
12
|
SE
12
|
| Wind gust (mph) |
19
|
19
|
18
|
18
|
18
|
18
|
18
|
18
|
18
|
18
|
18
|
18
|
18
|
18
|
18
|
17
|
17
|
17
|
17
|
17
|
17
|
17
|
17
|
17
|
| 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 |
74%
|
74%
|
74%
|
74%
|
74%
|
74%
|
74%
|
74%
|
74%
|
75%
|
75%
|
75%
|
74%
|
74%
|
74%
|
72%
|
73%
|
72%
|
72%
|
72%
|
72%
|
72%
|
73%
|
73%
|
| UV | - | - | - | - | - | - | 1 | 1 | 2 | 5 | 8 | 11 | 12 | 12 | 11 | 7 | 3 | 2 | 1 | 1 | - | - | - | - |
Wednesday (24 December 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%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
24°
|
23°
|
23°
|
23°
|
24°
|
24°
|
24°
|
24°
|
| Feels like temperature (°C) |
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
| Wind direction and speed (mph) |
SE
11
|
SE
10
|
SE
9
|
SE
9
|
SE
9
|
SE
9
|
SE
10
|
SE
11
|
| Wind gust (mph) |
17
|
15
|
14
|
14
|
14
|
15
|
16
|
17
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
74%
|
74%
|
74%
|
74%
|
73%
|
73%
|
74%
|
73%
|
| UV | - | - | 1 | 5 | 10 | 7 | 1 | - |
Thursday (25 December 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%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
24°
|
23°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
| Feels like temperature (°C) |
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
| Wind direction and speed (mph) |
SE
11
|
SE
11
|
SE
12
|
SE
12
|
ESE
12
|
SE
12
|
SE
12
|
SE
13
|
| Wind gust (mph) |
16
|
17
|
17
|
17
|
17
|
18
|
19
|
19
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
74%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
| UV | - | - | 1 | 3 | 12 | 8 | 1 | - |
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Forecast for 4am (UTC) Friday
Updated 00:26 (UTC) on Fri 19 Dec 2025
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