St Helena weather: 14-day forecast

Over the next 14 days in St Helena, temperatures range from 4 to 25 °C with 7 rainy days (51.9 mm in total).

Day	Weather	Min	Max	Precip.	Wind
Today	overcast	9 °C	16 °C	0.0 mm	17 km/h
Tomorrow	drizzle	8 °C	20 °C	1.3 mm	12 km/h
Sat 7 Nov	thunderstorms	8 °C	13 °C	13.7 mm	25 km/h
Sun 8 Nov	overcast	8 °C	15 °C	0.0 mm	15 km/h
Mon 9 Nov	partly cloudy	4 °C	19 °C	0.0 mm	9 km/h
Tue 10 Nov	mostly sunny	8 °C	25 °C	0.0 mm	12 km/h
Wed 11 Nov	drizzle	12 °C	16 °C	8.1 mm	16 km/h
Thu 12 Nov	light drizzle	13 °C	21 °C	4.2 mm	23 km/h
Fri 13 Nov	overcast	12 °C	24 °C	0.0 mm	13 km/h
Sat 14 Nov	showers	13 °C	19 °C	16.8 mm	18 km/h
Sun 15 Nov	drizzle	13 °C	16 °C	4.2 mm	17 km/h
Mon 16 Nov	light drizzle	10 °C	17 °C	3.6 mm	15 km/h
Tue 17 Nov	overcast	7 °C	18 °C	0.0 mm	12 km/h
Wed 18 Nov	overcast	7 °C	25 °C	0.0 mm	10 km/h

What the St Helena forecast shows

The second part of the period looks warmer in St Helena: daytime highs average 19.9 °C after day 7, against 17.7 °C in the first week, a rise of about 2.2 °C. Rain falls on 3 days in the first week and 4 days in the following 7 days.

Extremes of the period in St Helena. Warmest day: Tuesday 10 Nov, with a high of 25 °C. Coolest day: Saturday 7 Nov, when the high stays at 13 °C. Coldest night: Monday 9 Nov, down to 4 °C. Wettest day: Saturday 14 Nov, with 16.8 mm. Strongest wind: Saturday 7 Nov, gusting up to 25 km/h at most.

Over these 14 days the forecast highs average 18.8 °C, which is 2.2 °C below the 1991-2020 normal of 21.0 °C for the month.

Practical advice for the coming weeks

• Rain is likely on 7 days: keep a waterproof jacket or an umbrella at hand and plan indoor alternatives for outdoor events.
• Temperatures swing by up to 20 °C between the coldest night and the warmest day: dress in layers.

How reliable is a long-range forecast?

The first three to five days for St Helena are the most dependable. After about a week, a forecast gives a trend rather than an exact figure: the daily temperature can be off by several degrees and the timing of rain can shift by a day or more. Use the later days to plan broadly and check the page again as the date approaches, since it is updated several times a day.

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