Port-aux-Français weather in July

In July, Port-aux-Français sees average daytime highs of 4°C and overnight lows near -1°C, with 88 mm of precipitation across 15.9 wet days and about 8.4 hours of daylight. It is the 12th-warmest and 1st-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 14% of the time in July, and the air most often feels dry.

Daylight stretches from about 8 hours at the start of July to 8 h 54 min by month's end. Set against the rest of the year, July is Port-aux-Français's 1st-clearest and 7th-windiest month. For the whole year in context, see Port-aux-Français's year-round climate.

Daytime high
12th warmest
Overnight low
-1°
2nd coldest
Precipitation
88 mm
15.9 wet days
Daylight
8 h 18 min
8:14 AM – 4:35 PM
Cloud cover
71%
1st clearest
Wind
26 km/h
7th windiest
Solar energy
1.05 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 July

Average highAverage lowShaded bands: 10–90% of days

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

A typical July 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, July runs on par with June and on par with August.

-5°10°151015202531
Avg high (°C)Avg low (°C)
140
240
340
440
540
640
740
840
940
1040
1140
1240
1340
1440
1540
1640
174-1
184-1
194-1
204-1
214-1
223-1
233-1
243-1
253-1
263-1
273-1
283-1
293-1
303-1
313-1

How July really feels in Port-aux-Français

Once humidity and wind are folded in, July 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 July is cold — wind chill drags the overnight "feels like" below the raw low.

Port-aux-Français weather by month

How July compares with the rest of the year at a glance. July is the 12th-warmest and 1st-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 July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in July, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 20% of July, with mostly cloudy or overcast conditions the remaining 65%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33664
43763
53763
63763
73763
83763
93664
103664
113664
123664
133565
143565
153466
163466
173466
183466
193268
203268
213367
223367
233367
243367
253367
263367
273367
283367
293367
303268
313268

Chance of precipitation in July

Any precipitationSnow

Port-aux-Français gets around 88 mm of rain and snow over 15.9 wet days in July, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 51% and peaks near 53% on the wettest days, and about 8 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14922
24922
34922
45022
55023
65023
75123
85123
95123
105223
115223
125223
135324
145324
155324
165324
175324
185324
195324
205324
215324
225225
235225
245125
255125
265025
275025
284925
294925
304925
314824

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July 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 July

Winds average 26 km/h in July.

Across July, daily wind ranges from about 25 km/h on the calmest days to 27 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
125breezy
225breezy
326breezy
426breezy
526breezy
626breezy
726breezy
826breezy
926breezy
1026breezy
1126breezy
1226breezy
1326breezy
1426breezy
1526breezy
1626breezy
1727breezy
1827breezy
1926breezy
2026breezy
2126breezy
2226breezy
2326breezy
2426breezy
2526breezy
2627breezy
2727breezy
2827breezy
2927breezy
3027breezy
3127breezy

Sunrise & sunset in July

DaylightNight

Daylight runs from about 8 hours at the start of July to 8 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over July. Sunrise moves from 8:22 AM to 7:57 AM, and sunset from 4:23 PM to 4:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.08:224:23
28.08:224:23
38.08:224:24
48.18:214:25
58.18:214:25
68.18:214:26
78.18:204:27
88.18:204:28
98.28:194:28
108.28:194:29
118.28:184:30
128.28:174:31
138.38:174:32
148.38:164:33
158.38:154:34
168.38:144:35
178.48:134:36
188.48:124:37
198.58:114:39
208.58:104:40
218.58:094:41
228.68:084:42
238.68:074:43
248.68:064:44
258.78:054:46
268.78:044:47
278.88:024:48
288.88:014:50
298.98:004:51
308.97:584:52
318.97:574:54

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 1.05 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 — July's 1.05 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.9Dim
20.9Dim
30.9Dim
40.9Dim
50.9Dim
60.9Dim
70.9Dim
80.9Dim
90.9Dim
101.0Dim
111.0Dim
121.0Dim
131.0Dim
141.0Dim
151.0Dim
161.0Dim
171.1Dim
181.1Dim
191.1Dim
201.1Dim
211.1Dim
221.1Dim
231.1Dim
241.2Dim
251.2Dim
261.2Dim
271.2Dim
281.3Dim
291.3Dim
301.3Dim
311.3Dim
Planning a trip in July

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

Our two travel scores rate July 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

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

What to pack for Port-aux-Français in July

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

In July, 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 16 days see rain.

a warm layerrain geara heavy coata windbreaker

Sea temperature near Port-aux-Français in July

The nearest coast averages about 3°C in July — 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 July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 1. 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
July 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).