Weather forecast for tomorrow
Saint Helena, Ascension and Tristan da Cunha

Weather forecast for tomorrow

Sunday, 20. Jul

AM Clouds / PM Sun
06:48

18:09
GMT
AM Clouds / PM Sun
17°C / 14°C
  • Wind: 29km/h ESE
  • Humidity: 76%
  • Precip. probability: 23%
  • Precipitation: 0mm
  • UV index: 5
Tomorrow, on Sunday, 20th of July, the morning will be gray and overcast, but skies will clear gradually, leading to a pleasant afternoon.
Modest temperature shifts from a high of a breezy 17°C to a low of a mild 14°C are expected.
The predicted maximum temperature will be relatively lower than July's typical high of 22°C.
Sunrise will be at 06:48 and sunset at 18:09; tomorrow's daylight will last for 11h and 20min.

Hourly weather forecast

0h
  • 18°C
  • Feels like:
    17°C
Partly Cloudy
Partly Cloudy
  • Wind: 25km/h ESE
  • Pressure: 1021mbar
  • Humidity: 77%
  • Precip. probability: 1%
  • Precipitation: 0mm
  • Visibility: 16km
2h
  • 16°C
  • Feels like:
    14°C
Partly Cloudy
Partly Cloudy
  • Wind: 24km/h ESE
  • Pressure: 1020mbar
  • Humidity: 79%
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Visibility: 16km
4h
  • 16°C
  • Feels like:
    14°C
Partly Cloudy
Partly Cloudy
  • Wind: 24km/h ESE
  • Pressure: 1020mbar
  • Humidity: 79%
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Visibility: 16km
6h
  • 16°C
  • Feels like:
    14°C
Mostly Cloudy
Mostly Cloudy
  • Wind: 26km/h ESE
  • Pressure: 1020mbar
  • Humidity: 77%
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Visibility: 16km
8h
  • 16°C
  • Feels like:
    14°C
Partly Cloudy
Partly Cloudy
  • Wind: 26km/h ESE
  • Pressure: 1021mbar
  • Humidity: 75%
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Visibility: 16km
10h
  • 17°C
  • Feels like:
    15°C
Cloudy
Cloudy
  • Wind: 28km/h ESE
  • Pressure: 1022mbar
  • Humidity: 75%
  • Precip. probability: 24%
  • Precipitation: 0mm
  • Visibility: 16km
12h
  • 17°C
  • Feels like:
    16°C
Cloudy
Cloudy
  • Wind: 28km/h ESE
  • Pressure: 1022mbar
  • Humidity: 72%
  • Precip. probability: 17%
  • Precipitation: 0mm
  • Visibility: 16km
14h
  • 17°C
  • Feels like:
    16°C
Mostly Cloudy
Mostly Cloudy
  • Wind: 27km/h ESE
  • Pressure: 1020mbar
  • Humidity: 75%
  • Precip. probability: 16%
  • Precipitation: 0mm
  • Visibility: 16km
16h
  • 17°C
  • Feels like:
    15°C
Partly Cloudy
Partly Cloudy
  • Wind: 28km/h ESE
  • Pressure: 1020mbar
  • Humidity: 77%
  • Precip. probability: 21%
  • Precipitation: 0mm
  • Visibility: 16km
18h
  • 16°C
  • Feels like:
    14°C
Mostly Cloudy
Mostly Cloudy
  • Wind: 26km/h ESE
  • Pressure: 1020mbar
  • Humidity: 80%
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Visibility: 16km
20h
  • 16°C
  • Feels like:
    14°C
Mostly Cloudy
Mostly Cloudy
  • Wind: 28km/h ESE
  • Pressure: 1021mbar
  • Humidity: 80%
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Visibility: 16km
22h
  • 16°C
  • Feels like:
    14°C
Mostly Cloudy
Mostly Cloudy
  • Wind: 28km/h ESE
  • Pressure: 1021mbar
  • Humidity: 76%
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Visibility: 16km
Tomorrow, expect mostly cloudy skies.
The temperature difference throughout the day will be indistinguishable, with the lowest temperature of 16°C and the highest temperature of 18°C. The warmest part of the day will be at midnight and 1h.
Tomorrow, the forecasted high will be a couple of degrees lower than July's typical peak temperature. The minimum temperature tomorrow will be also relatively lower than July's average low.
July through September, with an average high-temperature of 22°C, are the coldest months in.
Updated: Jul 19, 2025 @ 18:47:56 UTC
Published by: Weather Atlas | About Us
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