Port-aux-Français weather in August

In August, Port-aux-Français sees average daytime highs of 4°C and overnight lows near -1°C, with 78 mm of precipitation across 14.1 wet days and about 9.8 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 4°C through the month. The sky is clear or mostly clear about 12% of the time in August, and the air most often feels dry.

Daylight stretches from about 9 hours at the start of August to 10 h 42 min by month's end. Set against the rest of the year, August is Port-aux-Français's 4th-clearest and 3rd-windiest month. For the whole year in context, see Port-aux-Français's year-round climate.

Daytime high
11th warmest
Overnight low
-1°
2nd coldest
Precipitation
78 mm
14.1 wet days
Daylight
9 h 48 min
7:30 AM – 5:16 PM
Cloud cover
73%
4th clearest
Wind
27 km/h
3rd windiest
Solar energy
1.77 kWh/m²
Travel score
0.0
out of 10

Port-aux-Français is research station in Kerguelen, French Southern and Antarctic Territories.

Founded
1951

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 4°C through the month.

A typical August day in Port-aux-Français reaches about 4°C in the afternoon and slips back to -1°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 0°C and 7°C. Set against its neighbours, August runs on par with July and on par with September.

-5°10°151015202531
Avg high (°C)Avg low (°C)
13-1
23-1
33-1
43-1
53-1
63-1
73-1
83-1
93-1
103-1
113-1
124-1
134-1
144-1
154-1
164-1
174-1
184-1
194-1
2040
2140
2240
2340
2440
2540
2640
2740
2840
2940
3040
3140

How August really feels in Port-aux-Français

Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 31 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
31
wind chill below the day's low

The story in August is cold — wind chill drags the overnight "feels like" below the raw low.

Port-aux-Français weather by month

How August compares with the rest of the year at a glance. August is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6813.50.615.61.8
Feb10° / 5811.60.214.21.9
Mar / 7113.10.512.51.6
Apr / 7613.31.510.61.0
May / 7914.63.68.90.2
Jun / 7714.45.580.0
Jul / -1°8815.97.58.40.0
Aug / -1°7814.16.49.80.0
Sep / -1°7814.57.211.60.0
Oct / 6914.34.513.50.1
Nov / 7215.52.815.10.6
Dec / 7715.60.8161.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 69%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23268
33268
43268
53268
63268
73268
83268
93268
103268
113268
123169
133169
143169
153169
163169
173169
183169
193169
203169
213070
223070
233070
243070
253070
263070
273070
283070
293070
303070
313070

Chance of precipitation in August

Any precipitationSnow

Port-aux-Français gets around 78 mm of rain and snow over 14.1 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 46% and peaks near 48% on the wettest days, and about 6 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14824
24724
34724
44723
54623
64622
74622
84621
94621
104621
114621
124620
134620
144520
154520
164520
174620
184620
194620
204620
214620
224620
234620
244620
254621
264621
274721
284721
294722
304822
314823

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in August

Winds average 27 km/h in August.

Across August, daily wind ranges from about 27 km/h on the calmest days to 28 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
127breezy
227breezy
327breezy
427breezy
527breezy
627breezy
727breezy
827breezy
927breezy
1027breezy
1127breezy
1227breezy
1327breezy
1427breezy
1527breezy
1627breezy
1727breezy
1827breezy
1927breezy
2027breezy
2127breezy
2227breezy
2328breezy
2428breezy
2528breezy
2628breezy
2728breezy
2828breezy
2928breezy
3028breezy
3128breezy

Sunrise & sunset in August

DaylightNight

Daylight runs from about 9 hours at the start of August to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 102 minutes over August. Sunrise moves from 7:55 AM to 7:00 AM, and sunset from 4:55 PM to 5:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.07:554:55
29.07:544:56
39.17:524:58
49.17:514:59
59.27:495:01
69.27:485:02
79.37:465:03
89.37:445:05
99.47:435:06
109.47:415:08
119.57:395:09
129.67:375:11
139.67:365:12
149.77:345:13
159.77:325:15
169.87:305:16
179.87:285:18
189.97:265:19
199.97:245:21
2010.07:225:22
2110.17:205:24
2210.17:185:25
2310.27:165:27
2410.27:145:28
2510.37:125:30
2610.47:105:31
2710.47:085:33
2810.57:065:34
2910.57:045:36
3010.67:025:37
3110.77:005:39

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 1.77 kWh/m².

For context, solar energy here swings from a low near 0.85 kWh/m² to a high of 5.89 kWh/m² in December across the year — August's 1.77 kWh/m² falls in the middle.

0123151015202531
Solar energy (kWh/m²)Level
11.3Dim
21.4Dim
31.4Dim
41.4Dim
51.4Dim
61.5Dim
71.5Dim
81.5Dim
91.5Dim
101.6Dim
111.6Dim
121.6Dim
131.7Dim
141.7Dim
151.7Dim
161.8Dim
171.8Dim
181.8Dim
191.8Dim
201.9Dim
211.9Dim
221.9Dim
232.0Dim
242.0Moderate
252.0Moderate
262.1Moderate
272.1Moderate
282.2Moderate
292.2Moderate
302.3Moderate
312.3Moderate
Planning a trip in August

Is August a good time to visit Port-aux-Français?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.0
Sightseeing
9th-best month of the year
Beach & pool
never really warm enough

August is a weaker month for outdoor sightseeing in Port-aux-Français.

What to pack for Port-aux-Français in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Port-aux-Français sees daytime highs around 4°C and nights near -1°C. Pack a warm layer and rain gear. Worth having: a heavy coat and a windbreaker. About 14 days see rain.

a warm layerrain geara heavy coata windbreaker

Sea temperature near Port-aux-Français in August

The nearest coast averages about 3°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in March at about 7°C and coldest in September near 3°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

2°4°6°8°JanFebMarAprMayJunJulAugSepOctNovDecbracing
Sea temperature (°C)Comfort
Jan6Bracing
Feb6Bracing
Mar7Bracing
Apr6Bracing
May5Bracing
Jun4Bracing
Jul3Bracing
Aug3Bracing
Sep3Bracing
Oct3Bracing
Nov4Bracing
Dec5Bracing

UV index in Port-aux-Français in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Port-aux-Français peaks around January 19 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highModerateLowModerateVery highJan 19UV 9Jun 23UV 1
UV index (midday)Level
Jan9Very high
Feb8Very high
Mar5Moderate
Apr2Moderate
May1Low
Jun1Low
Jul1Low
Aug2Low
Sep3Moderate
Oct5Moderate
Nov7Very high
Dec8Very high
Location & terrain

Where is Port-aux-Français?

Port-aux-Français sits at 49.3°S, 70.2°E, 11 m above sea level, in French Southern Territories. The nearest listed city is Saint-Joseph, 3,367 km away.

Topography around Port-aux-Français

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Port-aux-Français.

Within 3 km, the terrain around Port-aux-Français has only modest variations in elevation — a maximum elevation change of 68 m around an average of 20 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 854 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,652 m.

The land around Port-aux-Français is covered by grassland (42%), water (36%) and bare terrain (20%) within 3 km, water (41%) and grassland (37%) within 16 km, and water (69%) within 80 km.

3 km
68 m
16 km
854 m
80 km
1,652 m
grasslandbare terrainsnow and icewaterwetland
August weather nearby: Saint-Joseph 3,367 km · Tôlanaro 3,369 km · Saint-Pierre 3,376 km · Le Tampon 3,381 km · Saint-Louis 3,383 km · Piton Saint-Leu 3,394 km · Souillac 3,398 km · Saint-Benoît 3,399 km

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Port-aux-Français (-49.3492°, 70.2194°, elevation 11 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).