– Lat/Long: 78.10° S 159.17° E
Portal Mountain
Weather Forecast, AntarcticaIssued: 5 pm Wed 22 Jul Local TimeUpdates in: hr min sUpdate imminent
Issued: 5 pm Wed 22 Jul Local Time
Updates in:
Update imminent hr min s
Issued: 5 pm Wed 22 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 -23°C on Wed afternoon, min -39°C on Fri afternoon). Winds increasing (light winds from the WNW on Wed afternoon, strong winds from the W by Thu night). | Days 5–7 Weather SummaryMostly dry. Extremely cold (max -29°C on Sun night, min -35°C on Sat afternoon). Wind will be generally light. | ||||||||||||||||
Wed 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | |  | | | | | | | | | | | | | |
some clouds | some clouds | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | |
Cloud base (m) | 2150 | 2150 | 3650 | 4000 | 8200 | 8250 | |||||||||||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -23 | -24 | -31 | -35 | -34 | -36 | -39 | -38 | -35 | -35 | -33 | -31 | -30 | -29 | -32 | -33 | -34 |
min °C | -23 | -27 | -33 | -36 | -36 | -37 | -39 | -39 | -36 | -35 | -35 | -32 | -30 | -31 | -33 | -33 | -34 |
chill °C | -33 | -41 | -50 | -55 | -55 | -54 | -55 | -56 | -52 | -51 | -51 | -47 | -43 | -44 | -48 | -48 | -49 |
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 -23°C on Wed afternoon, min -39°C on Fri afternoon). Winds increasing (light winds from the WNW on Wed afternoon, strong winds from the W by Thu night).
Portal Mountain Weather (Days 3-6):
Mostly dry. Extremely cold (max -29°C on Sun night, min -35°C on Sat afternoon). Wind will be generally light.
This table gives the weather forecast for Portal Mountain at the specific elevation of 1000 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 |  | ||||
 | |||||
ASCATB256E66S | |||||
ASCATB257E66S | |||||
ASCATC258E66S | |||||
ASCATB258E66S | |||||
ASCATC83E60S | |||||
ASCATB259E66S | |||||
ASCATC259E66S |
* 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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