Zanzibar weather in July

In July, Zanzibar sees average daytime highs of 27°C and overnight lows near 23°C, with 22 mm of rain across 6.4 wet days and about 11.7 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 44% of the time in July, and the air most often feels muggy.

Daylight stretches from about 11 h 36 min at the start of July to 11 h 42 min by month's end. Set against the rest of the year, July is Zanzibar's 7th-clearest and 1st-windiest month. For the whole year in context, see Zanzibar's year-round climate.

Daytime high
27°
12th warmest
Overnight low
23°
2nd coldest
Rainfall
22 mm
6.4 wet days
Daylight
11 h 42 min
6:39 AM – 6:19 PM
Cloud cover
50%
7th clearest
Wind
17 km/h
1st windiest
Solar energy
4.7 kWh/m²
Travel score
7.1
out of 10

Zanzibar is city in Tanzania.

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 27°C through the month.

A typical July day in Zanzibar reaches about 27°C in the afternoon and slips back to 23°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°C. Set against its neighbours, July runs on par with June and on par with August.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12723
22723
32723
42723
52723
62723
72723
82723
92723
102723
112723
122723
132723
142723
152723
162723
172723
182723
192723
202723
212723
222723
232723
242723
252723
262723
272723
282723
292723
302723
312723

How July really feels in Zanzibar

Once humidity and wind are folded in, July averages 0 days that feel above 32°C and 0 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
0
wind chill below the day's low

July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Zanzibar weather by month

How July compares with the rest of the year at a glance. July is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 27°449.712.35.2
Feb30° / 27°367.712.25.1
Mar30° / 26°12221123.8
Apr29° / 25°20025.511.93.5
May28° / 25°14618.911.75.0
Jun28° / 24°359.611.66.6
Jul27° / 23°226.411.77.1
Aug27° / 23°216.211.87.2
Sep28° / 23°195.4127.1
Oct29° / 24°529.812.15.9
Nov29° / 25°841812.34.5
Dec30° / 26°9320.312.44.1

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 28% of July, with mostly cloudy or overcast conditions the remaining 29%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17129
27129
37129
47129
57129
67129
77030
87030
97030
107030
117030
127030
137030
147030
157030
167030
177030
187129
197129
207129
217129
227228
237327
247327
257327
267327
277327
287327
297426
307525
317426

Chance of precipitation in July

Any precipitation

Zanzibar gets around 22 mm of rain over 6.4 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 22% and peaks near 28% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
128
227
326
425
524
623
723
822
922
1022
1122
1222
1322
1422
1522
1621
1721
1821
1920
2020
2120
2220
2320
2420
2520
2619
2719
2819
2919
3019
3119

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the muggy band about 70% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
125246
235344
335641
435839
536037
636235
736433
836631
936829
1036928
1137027
1237126
1337225
1437225
1537324
1637423
1737423
1837522
1937522
2037522
2137621
2237621
2337621
2437621
2537621
2627721
2727721
2827721
2927721
3027721
3127721

Wind in July

Winds average 17 km/h in July, the windiest month of the year.

Across July, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 11 h 36 min at the start of July to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over July. Sunrise moves from 6:37 AM to 6:38 AM, and sunset from 6:16 PM to 6:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:376:16
211.66:376:16
311.66:376:16
411.66:386:17
511.76:386:17
611.76:386:17
711.76:386:17
811.76:386:17
911.76:386:18
1011.76:386:18
1111.76:386:18
1211.76:386:18
1311.76:386:18
1411.76:396:19
1511.76:396:19
1611.76:396:19
1711.76:396:19
1811.76:396:19
1911.76:396:20
2011.76:396:20
2111.76:396:20
2211.76:396:20
2311.76:386:20
2411.76:386:20
2511.76:386:20
2611.76:386:21
2711.76:386:21
2811.76:386:21
2911.76:386:21
3011.76:386:21
3111.76:386:21

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.7 kWh/m².

For context, solar energy here swings from a low near 4.36 kWh/m² to a high of 6.3 kWh/m² in February across the year — July's 4.7 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in July

Hazard calendar for Zanzibar

In seasonPeak

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

Zanzibar sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Zanzibar's rainy season runs March–May, 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 Zanzibar?

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

7.1
Sightseeing
2nd-best month of the year
7.3
Beach & pool
4th-best month of the year

July is one of the better times to visit Zanzibar for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Zanzibar in July

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

In July, Zanzibar sees daytime highs around 27°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Zanzibar in July

The nearest coast averages about 26°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 29°C and coldest in August near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May28Tropical
Jun27Warm
Jul26Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov28Warm
Dec29Tropical

UV index in Zanzibar in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Zanzibar peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 16UV 15Jun 17UV 9
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May10Extreme
Jun9Very high
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct13Extreme
Nov12Extreme
Dec12Extreme

Air quality in Zanzibar in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Zanzibar is worst in January — around 18 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodJan 2018 µg/m³Nov 118 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb16Moderate
Mar13Moderate
Apr11Good
May14Moderate
Jun16Moderate
Jul17Moderate
Aug15Moderate
Sep13Moderate
Oct9Good
Nov8Good
Dec13Moderate
Location & terrain

Where is Zanzibar?

Zanzibar sits at 6.2°S, 39.2°E, 14 m above sea level, in Tanzania. The nearest listed city is Bagamoyo, 45 km away.

MagomeniDar es SalaamKibaha

Topography around Zanzibar

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

Within 3 km, the terrain around Zanzibar has only modest variations in elevation — a maximum elevation change of 46 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 124 m; within 80 km, significant variations in elevation — a maximum elevation change of 347 m.

The land around Zanzibar is covered by water (53%) and artificial surfaces (35%) within 3 km, water (58%) and trees (27%) within 16 km, and water (61%) within 80 km.

3 km
46 m
16 km
124 m
80 km
347 m
treesshrubsgrasslandartificial surfacesbare terrainwatermangroves
July weather nearby: Bagamoyo 45 km · Sokoni 49 km · Nungwi 50 km · Mapinga 51 km · Mvomero 59 km · Magomeni 71 km · Dar es Salaam 74 km · Kibaha 74 km

Tanzania travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type D / G
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$1,319
2025
Happiness
3.9 / 10
World Happiness, 2025
Safe drinking water
31%
of population, 2024
Homicide rate
3.7
per 100k, 2020
Road deaths
31.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 479
Religion
Christian 63%Muslim 34%folk religion 1%

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 Zanzibar (-6.1639°, 39.1979°, elevation 14 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).