– Lat/Long: 78.10° S 159.17° E
Portal Mountain
Weather Forecast, AntarcticaIssued: 11 am Mon 31 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 11 am Mon 31 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 11 am Mon 31 Aug Local Time
Updates in:
Update imminent hr min s
3 Portal Mountain Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA dusting of new snow. Extremely cold (max -17°C on Tue morning, min -30°C on Wed night). Winds increasing (light winds from the E on Mon afternoon, severe gales from the WSW by Wed night). | Days 4–6 Weather SummaryMostly dry. Extremely cold (max -31°C on Thu morning, min -34°C on Sat night). Winds decreasing (severe gales from the WSW on Thu morning, light winds from the WSW by Sat night). | |||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | | |  |  |  | | | | | | | | |  | |
light snow | cloudy | cloudy | cloudy | cloudy | cloudy | some clouds | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | some clouds | |
Cloud base (m) | 2100 | 2100 | 2100 | 2100 | 2100 | 2200 | 3250 | 5300 | 8050 | 8200 | ||||||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -21 | -21 | -18 | -17 | -17 | -20 | -28 | -28 | -29 | -31 | -32 | -32 | -31 | -31 | -32 | -33 | -33 | -32 |
min °C | -21 | -21 | -20 | -17 | -19 | -25 | -28 | -29 | -30 | -32 | -33 | -32 | -31 | -32 | -33 | -33 | -33 | -34 |
chill °C | -29 | -29 | -28 | -26 | -28 | -38 | -44 | -48 | -52 | -55 | -57 | -55 | -50 | -50 | -53 | -53 | -52 | -50 |
Freezing level m | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
 | 10:12 | — | — | 10:03 | — | — | 9:53 | — | — | 9:45 | — | — | 9:37 | — | — | 9:27 | — | — |
 | — | 4:36 | — | — | 4:45 | — | — | 4:53 | — | — | 5:01 | — | — | 5:09 | — | — | 5:19 | — |
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Portal Mountain Weather (Days 0-3):
The weather forecast for Portal Mountain is: A dusting of new snow. Extremely cold (max -17°C on Tue morning, min -30°C on Wed night). Winds increasing (light winds from the E on Mon afternoon, severe gales from the WSW by Wed night).
Portal Mountain Weather (Days 3-6):
Mostly dry. Extremely cold (max -31°C on Thu morning, min -34°C on Sat night). Winds decreasing (severe gales from the WSW on Thu morning, light winds from the WSW 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 |  | ||||
 | |||||
ASCATC155E63S | |||||
ASCATC157E63S | |||||
ASCATC156E63S | |||||
ASCATC158E63S | |||||
ASCATC158E62S | |||||
ASCATC157E62S | |||||
ASCATC159E62S | |||||
ASCATC156E62S |
* 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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