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Weather extremes

How extreme does Port-aux-Français's weather get?

The hottest, coldest, wettest and snowiest days Port-aux-Français has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 34 years of daily weather observations (1991–present), from the Port-Aux-Francais (Iles Kerguelen) station 2 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Port-aux-Français has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
86°F Feb 5, 1994

That is about 32°F hotter than a normal February afternoon in Port-aux-Français (typical high near 54°F).

The three most extreme on record

1 86°F Feb 5, 1994
2 86°F Dec 28, 1996
3 84°F Jan 15, 1994
❄️ Coldest night
14°F Jul 11, 2004

About 17°F colder than a normal July night in Port-aux-Français (typical low near 31°F).

The three most extreme on record

1 14°F Jul 11, 2004
2 15°F Aug 11, 2014
3 17°F Jun 21, 2007
🌧️ Most rain in one day
2.80 in Apr 24, 2017

More rain in a single day than Port-aux-Français usually gets in the whole month of April (typical April total about 2.6 in).

The three most extreme on record

1 2.80 in Apr 24, 2017
2 2.80 in Apr 29, 2019
3 2.72 in Jan 11, 2018

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

-10°10°30°50°70°90°110° all-time high 86°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Port-aux-Français's record heat sits well above even a hot day for the season — February's 86°F is about 32°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Port-aux-Français's warmest days reach the mid-50s°F and its coldest nights drop to the low 30s°F. But across the record it has gone as high as 86°F and as low as 14°F. A single day has delivered over 3 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Port-aux-francais (iles Kerguelen), a weather station, about 2 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →