– Lat/Long: 78.10° S 159.17° E
Portal Mountain
Weather Forecast, AntarcticaIssued: 11 pm Mon 10 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 11 pm Mon 10 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 11 pm Mon 10 Aug 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 -24°C on Wed afternoon, min -31°C on Mon night). Winds decreasing (strong winds from the WSW on Mon night, light winds from the W by Thu afternoon). | Days 5–7 Weather SummaryA dusting of new snow. Extremely cold (max -25°C on Thu night, min -34°C on Sat night). Winds increasing (calm on Thu night, fresh winds from the S by Sun afternoon). | |||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  |  | | | |  | |  | | | | | |
clear | clear | clear | some clouds | some clouds | cloudy | some clouds | clear | some clouds | cloudy | cloudy | light snow | cloudy | some clouds | clear | some clouds | |
Cloud base (m) | 5250 | 4850 | 3200 | 4050 | 2100 | 2050 | 2050 | 2100 | 2150 | 2150 | ||||||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -28 | -27 | -27 | -26 | -26 | -24 | -25 | -28 | -28 | -25 | -26 | -27 | -28 | -30 | -30 | -31 |
min °C | -31 | -27 | -27 | -27 | -28 | -25 | -28 | -29 | -28 | -27 | -26 | -27 | -29 | -30 | -31 | -34 |
chill °C | -50 | -40 | -40 | -44 | -43 | -36 | -40 | -41 | -38 | -32 | -31 | -34 | -37 | -41 | -44 | -44 |
Freezing level m | 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 | — | — |
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Portal Mountain Weather (Days 0-3):
The weather forecast for Portal Mountain is: Mostly dry. Extremely cold (max -24°C on Wed afternoon, min -31°C on Mon night). Winds decreasing (strong winds from the WSW on Mon night, light winds from the W by Thu afternoon).
Portal Mountain Weather (Days 3-6):
A dusting of new snow. Extremely cold (max -25°C on Thu night, min -34°C on Sat night). Winds increasing (calm on Thu night, fresh winds from the S by Sun afternoon).
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 |  | ||||
ASCATC141E64S | |||||
ASCATC140E64S | |||||
ASCATC139E64S | |||||
ASCATC138E64S | |||||
ASCATC137E64S | |||||
ASCATC142E63S | |||||
ASCATC136E64S | |||||
ASCATC135E64S | |||||
ASCATC134E64S |
* 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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