– Lat/Long: 78.10° S 159.17° E
Portal Mountain
Weather Forecast, AntarcticaIssued: 5 pm Fri 31 Jul Local TimeUpdates in: hr min sUpdate imminent
Issued: 5 pm Fri 31 Jul Local Time
Updates in:
Update imminent hr min s
Issued: 5 pm Fri 31 Jul Local Time
Updates in:
Update imminent hr min s
3 Portal Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Extremely cold (max -31°C on Fri afternoon, min -37°C on Sun night). Winds increasing (fresh winds from the WSW on Fri afternoon, gales from the SW by Mon morning). | Days 5–7 Weather SummaryA dusting of new snow. Extremely cold (max -26°C on Wed night, min -36°C on Tue afternoon). Winds decreasing (severe gales from the SW on Mon afternoon, light winds from the SW by Tue night). | ||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | | | | | | | |  | | | |  |  | |
clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | cloudy | clear | clear | clear | some clouds | light snow | |
Cloud base (m) | 5350 | 7800 | 7700 | 5200 | 4900 | 2100 | 2100 | 2100 | 2100 | ||||||||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -31 | -31 | -33 | -33 | -32 | -32 | -34 | -35 | -35 | -32 | -32 | -34 | -35 | -31 | -32 | -30 | -26 |
min °C | -32 | -32 | -33 | -33 | -32 | -33 | -35 | -37 | -36 | -32 | -34 | -34 | -36 | -35 | -33 | -31 | -28 |
chill °C | -50 | -50 | -52 | -52 | -51 | -53 | -57 | -61 | -60 | -55 | -55 | -52 | -50 | -48 | -54 | -49 | -42 |
Freezing level m | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
 | — | — | 12:00 | — | — | 12:00 | — | — | 12:00 | — | — | 12:00 | — | — | 12:00 | — | — |
 | 12:00 | — | 12:00 | — | — | 12:00 | — | — | 12:00 | — | — | 12:00 | — | — | 12:00 | — | — |
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Portal Mountain Weather (Days 0-3):
The weather forecast for Portal Mountain is: Mostly dry. Extremely cold (max -31°C on Fri afternoon, min -37°C on Sun night). Winds increasing (fresh winds from the WSW on Fri afternoon, gales from the SW by Mon morning).
Portal Mountain Weather (Days 3-6):
A dusting of new snow. Extremely cold (max -26°C on Wed night, min -36°C on Tue afternoon). Winds decreasing (severe gales from the SW on Mon afternoon, light winds from the SW by Tue night).
This table gives the weather forecast for Portal Mountain at the specific elevation of 2000 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Portal Mountain. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Antarctica.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
Williams Field |  | ||||
ASCATB172E69S | |||||
ASCATC172E69S | |||||
ASCATB172E68S | |||||
ASCATC162E63S | |||||
ASCATC161E63S | |||||
ASCATC165E63S | |||||
ASCATB162E63S | |||||
ASCATC164E63S | |||||
ASCATC163E63S |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.
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