Weekly Climate Summary for 27 September 2025 through 03 October 2025 UTC
South Pole Station, Antarctica

Temperature:
Average temp... -51.3°C / -60.3°F
Maximum temp... -43.0°C / -45.4°F on day 30
Minimum temp... -59.8°C / -75.6°F on day 2

Wind:
Average wind speed.......... 14.6 mph or 12.7 knots
Prevailing wind direction... Grid East
Maximum wind speed.......... 37 mph or 32 knots on day 3
Maximum wind direction...... Grid North
Average vectored wind....... 032 degrees at 9.9 knots

Station Pressure:
Average pressure... 684.9 mb
Highest pressure... 691.0 mb on day 30
Lowest pressure.... 668.3 mb on day 3

Physio-altitude:
Average physio-alt = 10444 ft/ 3183 m
Highest physio-alt = 11073 ft/ 3375 m on day 3
Lowest physio-alt  = 10216 ft/ 3114 m on day 30

Sky Cover:
Average cloud cover (8ths)... 5
Days clear................... 2
Days partly cloudy........... 2
Days cloudy.................. 3

Sunshine:
Sunset on 22 March 2026
Average hours per day... 10.1
Percent of possible..... 42

Visibility:
1 day with visibility of 1/4 mile or less.

Balloon flight data:
Number of soundings for the week..... 8
Average height of soundings.......... 46.0 mb, or 22319 meters
Highest sounding..................... 7.1 mb, or 30560 meters on day 29/00Z flight

1 sounding was missed.

**RECORDS**
No records were tied or broken this week.