Ascension Wideawake (St Helena - Ascension and Tristan Da Cunha) weather

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Forecast days

Today

Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 23° Celsius;

Sunrise: 06:50

Sunset: 18:54

Sunny intervals changing to overcast by early evening.

VH UV

No pollution data.

No pollen data.

Today

Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 23° Celsius;
Fri 19 Sep

Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius;

Sunrise: 06:49

Sunset: 18:54

Sunny changing to overcast by early evening.

Ex UV

No pollution data.

No pollen data.

Fri 19 Sep

Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius;
Sat 20 Sep

Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 23° Celsius;

Sunrise: 06:48

Sunset: 18:54

Sunny intervals changing to partly cloudy by early evening.

Ex UV

No pollution data.

No pollen data.

Sat 20 Sep

Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 23° Celsius;
Sun 21 Sep

Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 23° Celsius;

Sunrise: 06:48

Sunset: 18:53

Sunny intervals changing to partly cloudy by early evening.

Ex UV

No pollution data.

No pollen data.

Sun 21 Sep

Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 23° Celsius;
Mon 22 Sep

Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius;

Sunrise: 06:47

Sunset: 18:53

Sunny intervals changing to partly cloudy by early evening.

Ex UV

No pollution data.

No pollen data.

Mon 22 Sep

Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 23° Celsius;
Tue 23 Sep

Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 23° Celsius;

Sunrise: 06:47

Sunset: 18:53

Sunny intervals changing to partly cloudy by early evening.

Ex UV

No pollution data.

No pollen data.

Tue 23 Sep

Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 23° Celsius;
Wed 24 Sep

Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 23° Celsius;

Sunrise: 06:46

Sunset: 18:53

Sunny intervals changing to overcast by late morning.

Ex UV

No pollution data.

No pollen data.

Wed 24 Sep

Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 23° Celsius;

Sunny intervals changing to overcast by early evening.

Sunrise: 06:50

Sunset: 18:54

VH UV

No pollution data.

No pollen data.

7 day forecast for Ascension Wideawake

Today (18 September 2025)

Time	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%
Temperature (°C)	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°
Feels like temperature (°C)	21°	21°	21°	22°	22°	22°	22°	22°	22°	21°	21°
Wind direction and speed (mph)	SE 14	SE 14	SE 14	SE 14	SE 14	SE 14	SE 14	SE 15	SE 15	SE 16	SE 17
Wind gust (mph)	19	19	19	19	19	19	20	21	21	22	22
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	75%	75%	75%	75%	75%	75%	75%	75%	75%	76%	76%
UV	11	10	7	4	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%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	24°	23°	23°	23°
Feels like temperature (°C)	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	22°	21°	21°	21°
Wind direction and speed (mph)	SE 17	SE 17	SE 17	SE 17	SE 17	SE 17	SE 16	SE 17	SE 17	SE 17	SE 17	ESE 17	ESE 17	ESE 17	ESE 17	ESE 17	ESE 16	ESE 16	ESE 17	ESE 17	SE 17	SE 18	ESE 18	ESE 18
Wind gust (mph)	23	23	23	23	22	22	22	22	23	23	23	23	23	23	23	22	22	22	23	23	24	24	25	25
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	76%	76%	78%	78%	78%	78%	77%	76%	76%	77%	76%	76%	76%	76%	77%	77%	77%	76%	77%	79%	81%	82%	83%	84%
UV	-	-	-	-	-	-	1	1	2	5	8	11	12	12	10	7	4	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	<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)	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°
Feels like temperature (°C)	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	21°	20°	20°	20°	20°	20°	20°
Wind direction and speed (mph)	ESE 18	ESE 18	ESE 18	ESE 18	ESE 18	ESE 17	ESE 17	ESE 17	ESE 17	ESE 17	ESE 17	ESE 17	ESE 17	ESE 17	ESE 17	ESE 18	SE 18	SE 18	SE 19	SE 19	SE 20	SE 21	SE 21	SE 21
Wind gust (mph)	24	24	24	23	23	23	23	23	23	23	23	23	23	23	24	24	25	25	26	27	28	28	28	28
Visibility (description)	G	G	G	G	G	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	84%	85%	85%	84%	84%	83%	79%	78%	77%	76%	76%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%
UV	-	-	-	-	-	-	1	1	2	4	8	10	12	12	10	7	3	1	1	-	-	-	-	-

Sunday (21 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%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°
Feels like temperature (°C)	20°	20°	20°	20°	20°	20°	20°	20°	20°	20°	20°	20°	20°	20°	20°	20°	20°	20°	20°	20°	19°	19°	19°	19°
Wind direction and speed (mph)	ESE 21	ESE 20	ESE 20	ESE 19	ESE 19	ESE 18	ESE 18	ESE 18	ESE 19	ESE 19	ESE 19	ESE 19	ESE 19	ESE 19	ESE 19	ESE 20	ESE 20	ESE 21	SE 21	SE 22	SE 22	SE 23	ESE 23	ESE 22
Wind gust (mph)	28	27	26	26	25	25	25	25	26	26	26	26	26	26	26	27	28	28	29	30	30	31	31	30
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	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%
UV	-	-	-	-	-	-	1	1	2	4	8	11	12	12	10	7	4	1	1	-	-	-	-	-

Monday (22 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%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°	23°
Feels like temperature (°C)	19°	19°	19°	19°	19°	19°	19°	19°	19°	19°	19°	20°	20°	20°	20°	20°	20°	20°	20°	19°	19°	19°	19°	19°
Wind direction and speed (mph)	ESE 22	ESE 22	ESE 22	ESE 21	ESE 21	ESE 21	ESE 21	ESE 21	ESE 21	ESE 21	ESE 21	ESE 21	ESE 21	ESE 21	ESE 21	ESE 20	ESE 21	ESE 21	ESE 22	ESE 23	ESE 23	ESE 23	ESE 23	ESE 24
Wind gust (mph)	30	29	29	29	29	29	29	29	30	30	29	29	28	28	28	28	29	30	30	31	32	32	32	32
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	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	74%	74%	74%	75%	75%	75%
UV	-	-	-	-	-	-	1	1	2	4	8	11	12	12	10	7	4	1	1	-	-	-	-	-

Tuesday (23 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%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	23°	23°	23°	23°	23°	23°	23°	23°
Feels like temperature (°C)	19°	19°	19°	19°	19°	20°	20°	19°
Wind direction and speed (mph)	ESE 24	ESE 23	ESE 23	ESE 23	ESE 22	ESE 21	ESE 22	ESE 23
Wind gust (mph)	32	32	32	31	30	30	30	31
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	75%	75%	75%	75%	75%	75%	75%	75%
UV	-	-	1	4	13	6	1	-

Wednesday (24 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%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	23°	23°	23°	23°	23°	23°	23°	23°
Feels like temperature (°C)	19°	19°	19°	19°	19°	19°	20°	20°
Wind direction and speed (mph)	ESE 23	ESE 22	ESE 22	ESE 23	ESE 22	ESE 21	ESE 21	ESE 21
Wind gust (mph)	30	30	31	31	30	30	29	29
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	75%	75%	75%	75%	75%	75%	75%	75%
UV	-	-	1	5	12	6	1	-

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Forecast

Forecast for 13:00 (UTC), Thu

Updated 12:47 (UTC+1) on Thu 18 Sep 2025

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Ascension Wideawake (St Helena - Ascension and Tristan Da Cunha) weather

Find a forecast

Forecast days

Today

Today

Fri 19 Sep

Fri 19 Sep

Sat 20 Sep

Sat 20 Sep

Sun 21 Sep

Sun 21 Sep

Mon 22 Sep

Mon 22 Sep

Tue 23 Sep

Tue 23 Sep

Wed 24 Sep

Wed 24 Sep

7 day forecast for Ascension Wideawake

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