– Lat/Long: 78.10° S 159.17° E
Portal Mountain
Weather Forecast, AntarcticaIssued: 5 pm Thu 27 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 5 pm Thu 27 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 5 pm Thu 27 Aug Local Time
Updates in:
Update imminent hr min s
3 Portal Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA moderate fall of snow, heaviest on Thu afternoon. Extremely cold (max -24°C on Sat afternoon, min -36°C on Fri afternoon). Winds decreasing (near gales from the S on Thu night, calm by Sat night). | Days 5–7 Weather SummaryA dusting of new snow. Extremely cold (max -22°C on Tue afternoon, min -27°C on Sun afternoon). Wind will be generally light. | ||||||||||||||||
Thu 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | | | |  |  |  | | | | | | |  | |
light snow | light snow | cloudy | cloudy | light snow | light snow | light snow | cloudy | clear | some clouds | cloudy | cloudy | cloudy | light snow | cloudy | cloudy | some clouds | |
Cloud base (m) | 2050 | 2050 | 2100 | 2100 | 2050 | 2100 | 2100 | 2100 | 2100 | 2150 | 2250 | 2100 | 2100 | 2100 | 2100 | 2100 | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | 2 | 3 | — | — | 1 | 2 | 2 | — | — | — | — | — | — | 1 | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -31 | -26 | -32 | -35 | -26 | -25 | -24 | -25 | -27 | -27 | -23 | -24 | -25 | -25 | -23 | -22 | -25 |
min °C | -33 | -31 | -34 | -36 | -33 | -25 | -25 | -27 | -28 | -27 | -24 | -25 | -25 | -26 | -24 | -23 | -27 |
chill °C | -53 | -47 | -51 | -56 | -52 | -42 | -39 | -27 | -36 | -36 | -30 | -34 | -35 | -38 | -33 | -30 | -38 |
Freezing level m | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
 | — | — | 10:44 | — | — | 10:33 | — | — | 10:22 | — | — | 10:12 | — | — | 10:03 | — | — |
 | 3:56 | — | — | 4:07 | — | — | 4:16 | — | — | 4:27 | — | — | 4:36 | — | — | 4:45 | — |
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Portal Mountain Weather (Days 0-3):
The weather forecast for Portal Mountain is: A moderate fall of snow, heaviest on Thu afternoon. Extremely cold (max -24°C on Sat afternoon, min -36°C on Fri afternoon). Winds decreasing (near gales from the S on Thu night, calm by Sat night).
Portal Mountain Weather (Days 3-6):
A dusting of new snow. Extremely cold (max -22°C on Tue afternoon, min -27°C on Sun afternoon). Wind will be generally light.
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 |  | ||||
ASCATB190E63S | |||||
ASCATB191E63S | |||||
ASCATB192E63S | |||||
ASCATC193E63S | |||||
ASCATB193E63S | |||||
ASCATC194E63S | |||||
ASCATB194E63S | |||||
ASCATB195E63S | |||||
ASCATC195E63S |
* 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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