– Lat/Long: 78.10° S 159.17° E
Portal Mountain
Weather Forecast, AntarcticaIssued: 5 am Wed 05 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 5 am Wed 05 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 5 am Wed 05 Aug Local Time
Updates in:
Update imminent hr min s
3 Portal Mountain Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Extremely cold (max -20°C on Fri night, min -31°C on Wed night). Winds decreasing (strong winds from the SSW on Wed afternoon, light winds from the SW by Thu morning). | Days 4–6 Weather SummaryA dusting of new snow. Extremely cold (max -22°C on Sat morning, min -36°C on Sun night). Winds increasing (calm on Sat afternoon, gales from the SW by Mon night). | |||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  |  | | | | |  | | | | | | | | |
some clouds | cloudy | some clouds | some clouds | clear | clear | clear | some clouds | some clouds | cloudy | light snow | some clouds | clear | clear | clear | clear | clear | clear | |
Cloud base (m) | 3250 | 2100 | 2150 | 2100 | 2150 | 5100 | 2050 | 2100 | 2150 | 2200 | 2100 | |||||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -26 | -25 | -26 | -31 | -29 | -23 | -23 | -23 | -20 | -22 | -27 | -32 | -33 | -32 | -35 | -33 | -32 | -29 |
min °C | -29 | -25 | -31 | -31 | -30 | -29 | -23 | -23 | -23 | -25 | -30 | -34 | -34 | -32 | -36 | -35 | -32 | -31 |
chill °C | -47 | -42 | -41 | -40 | -41 | -43 | -38 | -36 | -34 | -35 | -30 | -51 | -53 | -50 | -55 | -52 | -52 | -51 |
Freezing level m | 0 | 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 | — | — | 12:00 | — | — |
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Portal Mountain Weather (Days 0-3):
The weather forecast for Portal Mountain is: Mostly dry. Extremely cold (max -20°C on Fri night, min -31°C on Wed night). Winds decreasing (strong winds from the SSW on Wed afternoon, light winds from the SW by Thu morning).
Portal Mountain Weather (Days 3-6):
A dusting of new snow. Extremely cold (max -22°C on Sat morning, min -36°C on Sun night). Winds increasing (calm on Sat afternoon, gales from the SW by Mon 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 |  | ||||
ASCATB191E63S | |||||
ASCATB192E63S | |||||
ASCATB195E63S | |||||
ASCATB192E62S | |||||
ASCATC194E63S | |||||
ASCATC195E63S | |||||
ASCATB194E63S | |||||
ASCATB193E63S |
* 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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