This information may change. Always check the official source.Last verified: August 2026 by Ondřej Kadlec
Best time to visit Tanzania
In Dar es Salaam: July to September. Every month in Dar es Salaam averages above 27 °C by day, so the choice here is rain rather than temperature — those are the driest three months in a row.
Tanzania is not one climate. Each reference city below is answered on its own numbers.
Dar es Salaam
Jan31°January: 31 °C by day, 25 °C at night, 63 mm of rain
Feb31°February: 31 °C by day, 25 °C at night, 62 mm of rain
Mar30°March: 30 °C by day, 25 °C at night, 155 mm of rain
Apr29°April: 29 °C by day, 24 °C at night, 223 mm of rain
May28°May: 28 °C by day, 23 °C at night, 122 mm of rain
Jun28°June: 28 °C by day, 22 °C at night, 35 mm of rain
Jul28°July: 28 °C by day, 22 °C at night, 20 mm of rain, recommended
Aug28°August: 28 °C by day, 22 °C at night, 23 mm of rain, recommended
Sep29°September: 29 °C by day, 22 °C at night, 25 mm of rain, recommended
Oct29°October: 29 °C by day, 23 °C at night, 59 mm of rain
Nov30°November: 30 °C by day, 24 °C at night, 96 mm of rain
Dec30°December: 30 °C by day, 25 °C at night, 94 mm of rain
Warmest
January, 31 °C
Coolest
May, 28 °C
Driest
July, 20 mm
Wettest
April, 223 mm
Zanzibar City
July — 18–27 °C by day. No other month of the twelve falls inside that band in Zanzibar City.
Jan30°January: 30 °C by day, 26 °C at night, 49 mm of rain
Feb31°February: 31 °C by day, 26 °C at night, 40 mm of rain
Mar31°March: 31 °C by day, 26 °C at night, 122 mm of rain
Apr29°April: 29 °C by day, 25 °C at night, 237 mm of rain
May28°May: 28 °C by day, 24 °C at night, 140 mm of rain
Jun28°June: 28 °C by day, 23 °C at night, 42 mm of rain
Jul27°July: 27 °C by day, 23 °C at night, 28 mm of rain, recommended
Aug28°August: 28 °C by day, 22 °C at night, 27 mm of rain
Sep29°September: 29 °C by day, 23 °C at night, 26 mm of rain
Oct30°October: 30 °C by day, 24 °C at night, 64 mm of rain
Nov30°November: 30 °C by day, 24 °C at night, 98 mm of rain
Dec30°December: 30 °C by day, 25 °C at night, 91 mm of rain
Warmest
February, 31 °C
Coolest
July, 27 °C
Driest
September, 26 mm
Wettest
April, 237 mm
Arusha
June to October — 18–27 °C by day. 10 of the twelve months clear that band in Arusha, so this is the driest run of 5 in a row.
Jan28°January: 28 °C by day, 16 °C at night, 72 mm of rain
Feb29°February: 29 °C by day, 17 °C at night, 70 mm of rain
Mar27°March: 27 °C by day, 17 °C at night, 130 mm of rain
Apr25°April: 25 °C by day, 17 °C at night, 187 mm of rain
May23°May: 23 °C by day, 16 °C at night, 96 mm of rain
Jun22°June: 22 °C by day, 14 °C at night, 26 mm of rain, recommended
Jul22°July: 22 °C by day, 13 °C at night, 20 mm of rain, recommended
Aug23°August: 23 °C by day, 13 °C at night, 18 mm of rain, recommended
Sep25°September: 25 °C by day, 14 °C at night, 14 mm of rain, recommended
Oct27°October: 27 °C by day, 16 °C at night, 33 mm of rain, recommended
Nov26°November: 26 °C by day, 17 °C at night, 76 mm of rain
Dec27°December: 27 °C by day, 16 °C at night, 82 mm of rain
Warmest
February, 29 °C
Coolest
June, 22 °C
Driest
September, 14 mm
Wettest
April, 187 mm
How this is worked out: a month qualifies when its mean daytime high falls between 18 °C and 27 °C. Where more than five qualify, the answer is the driest run of consecutive qualifying months; where none do, it is the driest three months in a row if the year is hot throughout, or the warmest three if it never gets there. The figures are the thirty-year monthly averages charted below, and they are averages, not a forecast — any single year can miss them by a wide margin.
Dar es Salaam
Long-term averages for Dar es Salaam: the mean daily high, the mean overnight low and the mean monthly rainfall across 30 years of ERA5 reanalysis data (1995–2024).
DayNight
Show the monthly table
Dar es Salaam
Month
Day (°C)
Night (°C)
Rain (mm)
January
31
25
63
February
31
25
62
March
30
25
155
April
29
24
223
May
28
23
122
June
28
22
35
July
28
22
20
August
28
22
23
September
29
22
25
October
29
23
59
November
30
24
96
December
30
25
94
Zanzibar City
Long-term averages for Zanzibar City: the mean daily high, the mean overnight low and the mean monthly rainfall across 30 years of ERA5 reanalysis data (1995–2024).
DayNight
Show the monthly table
Zanzibar City
Month
Day (°C)
Night (°C)
Rain (mm)
January
30
26
49
February
31
26
40
March
31
26
122
April
29
25
237
May
28
24
140
June
28
23
42
July
27
23
28
August
28
22
27
September
29
23
26
October
30
24
64
November
30
24
98
December
30
25
91
Arusha
Long-term averages for Arusha: the mean daily high, the mean overnight low and the mean monthly rainfall across 30 years of ERA5 reanalysis data (1995–2024).
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