Saint-Joseph weather in July

In July, Saint-Joseph sees average daytime highs of 22°C and overnight lows near 20°C, with 41 mm of rain across 9.1 wet days and about 10.8 hours of daylight. It is the 11th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 77% of the time in July, and the air most often feels humid.

Daylight stretches from about 10 h 42 min at the start of July to 11 hours by month's end. Set against the rest of the year, July is Saint-Joseph's 4th-clearest and 1st-windiest month. For the whole year in context, see Saint-Joseph's year-round climate.

Daytime high
22°
11th warmest
Overnight low
20°
2nd coldest
Rainfall
41 mm
9.1 wet days
Daylight
10 h 48 min
6:59 AM – 5:48 PM
Cloud cover
28%
4th clearest
Wind
25 km/h
1st windiest
Solar energy
4.02 kWh/m²
Travel score
7.3
out of 10

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 22°C through the month.

A typical July day in Saint-Joseph reaches about 22°C in the afternoon and slips back to 20°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 23°C. Set against its neighbours, July runs about 1°C cooler than June and on par with August.

15°18°20°23°25°151015202531
Avg high (°C)Avg low (°C)
12221
22221
32221
42221
52221
62221
72220
82220
92220
102220
112220
122220
132220
142220
152220
162220
172220
182220
192220
202220
212220
222220
232220
242220
252220
262220
272220
282120
292120
302120
312120

Saint-Joseph weather by month

How July compares with the rest of the year at a glance. July is the 11th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 25°14412.713.26.3
Feb26° / 25°13413.112.76.1
Mar26° / 25°12511.212.26.7
Apr25° / 24°6310.211.57.1
May24° / 23°559.4117.6
Jun23° / 21°428.310.77.6
Jul22° / 20°419.110.87.3
Aug21° / 20°296.411.37.8
Sep22° / 21°234.911.98.0
Oct23° / 22°244.812.58.1
Nov24° / 23°456138.0
Dec25° / 24°769.213.37.2

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 77% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 15% of July, with mostly cloudy or overcast conditions the remaining 8%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1928
2928
3928
4928
5928
6928
7928
8928
9928
10928
11928
12937
13937
14937
15937
16937
17937
18937
19937
20928
21919
22919
23919
24919
25919
26919
27928
28928
29928
30928
31937

Chance of precipitation in July

Any precipitation

Saint-Joseph gets around 41 mm of rain over 9.1 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 33% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
130
230
330
431
531
632
732
832
932
1033
1133
1233
1333
1433
1532
1632
1731
1831
1930
2029
2129
2228
2327
2426
2526
2625
2724
2824
2923
3022
3122

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the humid band about 51% of days. Sticky, muggy-or-worse air turns up on roughly 11% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12345410
2235549
3236539
4236548
5237538
6238537
7238537
8238537
9238537
10238528
11338518
12338509
13337519
143375010
153365011
164355011
174355012
184345012
194335112
204335013
214325113
224325113
234315213
244315213
254325113
264325113
274325113
284335112
294345012
304345012
314355012

Wind in July

Winds average 25 km/h in July, the windiest month of the year.

Across July, daily wind ranges from about 24 km/h on the calmest days to 26 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
124breezy
224breezy
324breezy
424breezy
524breezy
625breezy
725breezy
825breezy
925breezy
1025breezy
1125breezy
1225breezy
1325breezy
1425breezy
1526breezy
1626breezy
1726breezy
1826breezy
1926breezy
2026breezy
2126breezy
2226breezy
2326breezy
2426breezy
2526breezy
2626breezy
2726breezy
2825breezy
2925breezy
3025breezy
3125breezy

Sunrise & sunset in July

DaylightNight

Daylight runs from about 10 h 42 min at the start of July to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over July. Sunrise moves from 6:59 AM to 6:54 AM, and sunset from 5:42 PM to 5:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.76:595:42
210.77:005:43
310.77:005:43
410.77:005:43
510.77:005:44
610.77:005:44
710.77:005:44
810.77:005:45
910.87:005:45
1010.87:005:45
1110.86:595:46
1210.86:595:46
1310.86:595:46
1410.86:595:47
1510.86:595:47
1610.86:595:48
1710.86:595:48
1810.86:585:48
1910.86:585:49
2010.96:585:49
2110.96:585:50
2210.96:575:50
2310.96:575:50
2410.96:575:51
2510.96:565:51
2610.96:565:52
2710.96:555:52
2811.06:555:52
2911.06:555:53
3011.06:545:53
3111.06:545:54

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.02 kWh/m².

For context, solar energy here swings from a low near 3.86 kWh/m² to a high of 7.07 kWh/m² in November across the year — July's 4.02 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.9Moderate
93.9Moderate
103.9Moderate
114.0Moderate
124.0Moderate
134.0Moderate
144.0Moderate
154.0Bright
164.0Bright
174.0Bright
184.0Bright
194.1Bright
204.1Bright
214.1Bright
224.1Bright
234.1Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.3Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in July

Hazard calendar for Saint-Joseph

In seasonPeak

None of Saint-Joseph's seasonal hazards are active in July. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Saint-Joseph sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Saint-Joseph's rainy season runs December–March, when most of the year's rain falls.

Cyclone
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit Saint-Joseph?

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

7.3
Sightseeing
7th-best month of the year
4.9
Beach & pool
12th-best month of the year

July is one of the better times to visit Saint-Joseph for general sightseeing.

What to pack for Saint-Joseph in July

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

In July, Saint-Joseph sees daytime highs around 22°C and nights near 20°C. Worth packing: rain gear and a windbreaker. About 9 days see rain.

rain geara windbreaker

Sea temperature near Saint-Joseph in July

The nearest coast averages about 24°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 February at about 28°C and coldest in August near 23°C.

The water stays above 20°C all year — warm enough for a swim any month.

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Warm
Mar28Warm
Apr27Warm
May26Warm
Jun25Warm
Jul24Refreshing
Aug23Refreshing
Sep23Refreshing
Oct24Warm
Nov25Warm
Dec27Warm

UV index in Saint-Joseph in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Saint-Joseph peaks around January 17 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 6 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 17UV 16Jul 10UV 6
UV index (midday)Level
Jan17Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun6High
Jul6High
Aug9Very high
Sep10Extreme
Oct12Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Saint-Joseph?

Saint-Joseph sits at 21.4°S, 55.6°E, 43 m above sea level, in Reunion. The nearest listed city is Saint-Pierre, 15 km away.

Saint-PierreLe TamponSaint-LouisPiton Saint-LeuSaint-BenoîtSaint-LeuSaint-AndréSainte-Suzanne

Topography around Saint-Joseph

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint-Joseph.

Within 3 km, the terrain around Saint-Joseph has significant variations in elevation — a maximum elevation change of 486 m around an average of 108 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,407 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,030 m.

The land around Saint-Joseph is covered by trees (39%) and water (39%) within 3 km, water (53%) and trees (30%) within 16 km, and water (77%) within 80 km.

3 km
486 m
16 km
2,407 m
80 km
3,030 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Saint-Pierre 15 km · Le Tampon 15 km · Saint-Louis 24 km · Piton Saint-Leu 36 km · Saint-Benoît 39 km · Saint-Leu 41 km · Saint-André 46 km · Sainte-Suzanne 52 km

Reunion travel facts

Power plugs
Type C / E
220 V · 50 Hz

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Saint-Joseph (-21.3777°, 55.6169°, elevation 43 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).