Climate · Tanzania

Zanzibar (Stone Town)

Hot all year, wet from April to May and drier from July to October.

Typical weather, averaged over 30 years6.2°S10 m above the sea
  1. Jan89°32°79°26°Rain on about four days a week.
  2. Feb90°32°79°26°Rain on about three days a week.
  3. Mar90°32°79°26°Rain on about five days a week.
  4. Apr87°31°77°25°Rain on about six days a week.
  5. May85°29°76°24°Rain on about five days a week.
  6. Jun85°29°74°23°Rain on about four days a week.
  7. Jul84°29°73°23°Rain on about three days a week.
  8. Aug85°29°73°23°Rain on about three days a week.
  9. Sep87°31°74°23°Rain on about three days a week.
  10. Oct88°31°75°24°Rain on about three days a week.
  11. Nov88°31°76°24°Rain on about five days a week.
  12. Dec89°32°78°26°Rain on about six days a week.
Each month: its typical high and low, and dots for wet days a week. Tap a month to open it.The best months

Highs hardly move, between 84°F and 90°F all year, with nights near 76°F. Rain comes in two spells, from April to May and from November to December. July to October is the driest stretch, with rain on about three days a week. Daylight stays near 12 hours all year.Highs hardly move, between 29°C and 32°C all year, with nights near 24°C. Rain comes in two spells, from April to May and from November to December. July to October is the driest stretch, with rain on about three days a week. Daylight stays near 12 hours all year.

Where Zanzibar (Stone Town) sits

Africa/Dar es Salaam

this place
typical high in Januarytypical high in Februarytypical high in Marchtypical high in Apriltypical high in Maytypical high in Junetypical high in Julytypical high in Augusttypical high in Septembertypical high in Octobertypical high in Novembertypical high in December 40°F4°C95°F35°C
Latitude
6.2°Ssouthern hemisphere
Above the sea
10 mlow-lying
Sunrise, mid-JanuarySunrise, mid-FebruarySunrise, mid-MarchSunrise, mid-AprilSunrise, mid-MaySunrise, mid-JuneSunrise, mid-JulySunrise, mid-AugustSunrise, mid-SeptemberSunrise, mid-OctoberSunrise, mid-NovemberSunrise, mid-December
6:19 AM6:28 AM6:28 AM6:24 AM6:24 AM6:30 AM6:35 AM6:31 AM6:17 AM6:02 AM5:56 AM6:04 AMsets 6:45 PMsets 6:47 PMsets 6:37 PMsets 6:23 PMsets 6:14 PMsets 6:16 PMsets 6:23 PMsets 6:25 PMsets 6:21 PMsets 6:16 PMsets 6:20 PMsets 6:33 PM
Nearest of ours
Dongwe38 km east

The land around Zanzibar (Stone Town), shaded by its typical high in January, the planning map's own layer.The land around Zanzibar (Stone Town), shaded by its typical high in February, the planning map's own layer.The land around Zanzibar (Stone Town), shaded by its typical high in March, the planning map's own layer.The land around Zanzibar (Stone Town), shaded by its typical high in April, the planning map's own layer.The land around Zanzibar (Stone Town), shaded by its typical high in May, the planning map's own layer.The land around Zanzibar (Stone Town), shaded by its typical high in June, the planning map's own layer.The land around Zanzibar (Stone Town), shaded by its typical high in July, the planning map's own layer.The land around Zanzibar (Stone Town), shaded by its typical high in August, the planning map's own layer.The land around Zanzibar (Stone Town), shaded by its typical high in September, the planning map's own layer.The land around Zanzibar (Stone Town), shaded by its typical high in October, the planning map's own layer.The land around Zanzibar (Stone Town), shaded by its typical high in November, the planning map's own layer.The land around Zanzibar (Stone Town), shaded by its typical high in December, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Through the year

week by week

Temperature

Highs from 84°F in July to 90°F in February and March.Highs from 29°C in July to 32°C in February and March.

Chance of a wet day

Wettest in April (92% of days), driest in September (37%).

Cloud cover

Clearest in August and September (37% cover), cloudiest in March (72%).

Daylight

About 12 hours all year, as near the equator.

Week by week, lightly smoothed. Shading marks the seasons; the olive line, the best months. Hover or tap a week for its figures.

Month by month

°F°C

Zanzibar (Stone Town), month by month: the typical high and low, wet days a week, cloud cover and daylight.
MonthTypical low to highWet days a weekCloudDaylight
January
79°26°89°32°
4 days71%12h 26m
February
79°26°90°32°
3 days70%12h 19m
March
79°26°90°32°
5 days72%12h 09m
AprilRainy season
77°25°87°31°
6 days66%11h 59m
MayRainy season
76°24°85°29°
5 days54%11h 50m
JuneAt its best
74°23°85°29°
4 days46%11h 46m
JulyAt its best
73°23°84°29°
3 days42%11h 48m
AugustAt its best
73°23°85°29°
3 days37%11h 55m
SeptemberAt its best
74°23°87°31°
3 days37%12h 05m
October
75°24°88°31°
3 days45%12h 15m
NovemberRainy season
76°24°88°31°
5 days53%12h 24m
DecemberRainy season
78°26°89°32°
6 days61%12h 28m

When is the best time to visit Zanzibar (Stone Town)?


The best months are June to September: highs near 85°F, nights near 74°F, and rain on about three days a week.The best months are June to September: highs near 29°C, nights near 23°C, and rain on about three days a week.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

Questions


What is the warmest month in Zanzibar (Stone Town)?

February and March, with highs near 90°F and lows near 79°F. The coolest is July, with highs near 84°F.February and March, with highs near 32°C and lows near 26°C. The coolest is July, with highs near 29°C.

When does it rain most in Zanzibar (Stone Town)?

April, with rain on about six days a week. September is the driest, with rain on about three days a week.

How long are the days in Zanzibar (Stone Town)?

About 12 hours all year, as near the equator.

When are the skies clearest in Zanzibar (Stone Town)?

August and September, when cloud covers about 37% of the sky on average. March is the cloudiest, at about 72%.

Places with a year like Zanzibar (Stone Town)'s

by their highs, lows and wet days

Their highs, lows, wet days and cloud run closest to Zanzibar (Stone Town)'s through the year, one place a country. “Six months apart”: their winter is Zanzibar (Stone Town)'s summer.

Elsewhere in Tanzania

All of Tanzania

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Zanzibar (Stone Town). Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.