– Lat/Long: 78.10° S 159.17° E
Portal Mountain
Weather Forecast, AntarcticaIssued: 5 am Tue 11 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 5 am Tue 11 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 5 am Tue 11 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 -25°C on Wed morning, min -29°C on Thu morning). Winds decreasing (strong winds from the WSW on Tue night, light winds from the WSW by Wed afternoon). | Days 4–6 Weather SummaryMostly dry. Extremely cold (max -26°C on Fri morning, min -41°C on Sun night). Winds increasing (light winds from the WSW on Fri morning, gales from the SW by Sat night). | |||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  | |  | | |  | | | | |  | | | | | |
clear | clear | clear | cloudy | cloudy | cloudy | clear | clear | some clouds | cloudy | cloudy | some clouds | clear | some clouds | some clouds | clear | clear | clear | |
Cloud base (m) | 4350 | 3350 | 3900 | 3600 | 3850 | 9400 | 5150 | 2200 | 2150 | |||||||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -27 | -27 | -26 | -25 | -25 | -25 | -29 | -29 | -26 | -26 | -27 | -27 | -28 | -29 | -31 | -35 | -39 | -36 |
min °C | -27 | -27 | -27 | -27 | -25 | -28 | -29 | -29 | -29 | -26 | -27 | -27 | -28 | -30 | -34 | -37 | -40 | -41 |
chill °C | -41 | -41 | -44 | -42 | -34 | -42 | -44 | -44 | -42 | -35 | -37 | -40 | -43 | -48 | -56 | -60 | -59 | -56 |
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 -25°C on Wed morning, min -29°C on Thu morning). Winds decreasing (strong winds from the WSW on Tue night, light winds from the WSW by Wed afternoon).
Portal Mountain Weather (Days 3-6):
Mostly dry. Extremely cold (max -26°C on Fri morning, min -41°C on Sun night). Winds increasing (light winds from the WSW on Fri morning, gales from the SW by Sat 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 |  | ||||
ASCATC159E64S | |||||
ASCATB152E64S | |||||
ASCATC153E64S | |||||
ASCATC152E64S | |||||
ASCATB151E64S | |||||
ASCATB153E64S | |||||
ASCATC153E63S | |||||
ASCATB154E63S | |||||
ASCATB153E63S |
* 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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