– Lat/Long: 78.10° S 159.17° E
Portal Mountain
Weather Forecast, AntarcticaIssued: 5 am Fri 17 Jul Local TimeUpdates in: hr min sUpdate imminent
Issued: 5 am Fri 17 Jul Local Time
Updates in:
Update imminent hr min s
Issued: 5 am Fri 17 Jul 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 -30°C on Sun night, min -44°C on Fri night). Winds decreasing (fresh winds from the WNW on Fri morning, light winds from the WSW by Sat morning). | Days 4–6 Weather SummaryA dusting of new snow. Extremely cold (max -20°C on Tue afternoon, min -30°C on Wed afternoon). Mainly fresh winds. | |||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  | | | | | | | |  |  | |  | | |
clear | clear | some clouds | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | light snow | light snow | cloudy | some clouds | cloudy | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -41 | -42 | -42 | -38 | -37 | -36 | -35 | -34 | -30 | -26 | -23 | -22 | -21 | -20 | -21 | -27 | -30 | -30 |
min °C | -42 | -43 | -44 | -39 | -38 | -37 | -35 | -35 | -33 | -28 | -24 | -24 | -22 | -20 | -25 | -28 | -30 | -30 |
chill °C | -61 | -60 | -60 | -52 | -50 | -51 | -50 | -50 | -47 | -38 | -32 | -32 | -32 | -30 | -36 | -41 | -45 | -45 |
Freezing level m | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Cloud base (m) | 4350 | 2100 | 2050 | 2150 | 2150 | 2100 | 2100 | 2050 | 2100 | 2100 | 2100 | 2100 | 2100 | 2100 | 2100 | |||
 | 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 -30°C on Sun night, min -44°C on Fri night). Winds decreasing (fresh winds from the WNW on Fri morning, light winds from the WSW by Sat morning).
Portal Mountain Weather (Days 3-6):
A dusting of new snow. Extremely cold (max -20°C on Tue afternoon, min -30°C on Wed afternoon). Mainly fresh winds.
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 |  | ||||
 | |||||
ASCATB190E65S | |||||
ASCATB191E65S | |||||
ASCATB190E64S | |||||
ASCATC192E65S | |||||
ASCATB192E65S | |||||
ASCATB191E64S | |||||
ASCATB193E65S | |||||
ASCATC193E65S |
* 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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