Bariadi climate

Tanzania · 2.80°S, 33.98°E · elevation 1,282 m · population 260,927

Warmest month
September
high 33 °C91 °F
Coldest month
January
low 17 °C62 °F
Wettest month
December
180 mm7.1 in
Best time to visit
May and June
by our comfort score
Annual precipitation
1,039 mm41 in
July driest
Year average
23 °C74 °F
tropical savanna (dry winter) (Aw)

Bariadi (Tanzania) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 23 °C74 °F, and about 1,039 mm41 in of precipitation falls in an average year.

Temperature by month

Average highAverage low
10°15°20°25°30°35°50°60°70°80°90°JFMAMJJASOND33°91°15°59°January: high 27 °C / 81 °F, low 17 °C / 62 °FFebruary: high 29 °C / 83 °F, low 17 °C / 62 °FMarch: high 28 °C / 83 °F, low 17 °C / 63 °FApril: high 28 °C / 82 °F, low 17 °C / 62 °FMay: high 28 °C / 83 °F, low 16 °C / 61 °FJune: high 29 °C / 85 °F, low 15 °C / 60 °FJuly: high 30 °C / 86 °F, low 15 °C / 59 °FAugust: high 31 °C / 89 °F, low 17 °C / 62 °FSeptember: high 33 °C / 91 °F, low 18 °C / 65 °FOctober: high 32 °C / 90 °F, low 18 °C / 65 °FNovember: high 29 °C / 84 °F, low 17 °C / 63 °FDecember: high 27 °C / 81 °F, low 17 °C / 63 °F

Precipitation by month

Precipitation per month (mminches)
0501001502000246JJanuary: 138 mm / 5.4 inFFebruary: 97 mm / 3.8 inMMarch: 153 mm / 6.0 inAApril: 130 mm / 5.1 inMMay: 52 mm / 2.0 inJJune: 8 mm / 0.3 inJJuly: 4 mm / 0.2 inAAugust: 11 mm / 0.4 inSSeptember: 18 mm / 0.7 inOOctober: 69 mm / 2.7 inNNovember: 179 mm / 7.1 inDDecember: 180 mm / 7.1 in1807.1

Bariadi climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mmin
Jan2781176222721385.4
Feb298317622373973.8
Mar2883176323731536.0
Apr2882176222721305.1
May288316612272522.0
Jun29851560227280.3
Jul30861559237340.2
Aug318917622475110.4
Sep339118652578180.7
Oct329018652577692.7
Nov2984176323741797.1
Dec2781176322721807.1
Year3391155923741,03941

“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan74%64%5.812:16
Feb71%64%6.312:12
Mar73%69%6.112:08
Apr76%72%5.912:03
May69%58%5.811:59
Jun57%44%5.711:58
Jul46%34%5.911:58
Aug44%44%6.012:01
Sep44%59%6.212:06
Oct52%69%6.112:11
Nov68%73%5.812:15
Dec74%66%5.712:17

Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.

What the climate of Bariadi is like

The warmest month is September, with an average high of 33 °C91 °F and a low of 18 °C65 °F. The coldest is January, when highs average 27 °C81 °F and lows 17 °C62 °F. Seasonal differences are small — just 3.3 °C5.9 °F between the warmest and the coolest month.

It is wet, with about 1,039 mm41 in of precipitation per year. The wettest three-month stretch is November–January, which brings 48% of the annual total. Months with less than 20 mm0.8 in on average: June–September. The wettest month is December (180 mm7.1 in), the driest is July (4 mm0.2 in).

Relative humidity ranges from 44% in September to 76% in April. The clearest skies (lowest average cloud amount, 34%) are typical of July. Average wind speed near the ground ranges from 6 km/h (3 mph) in January to 13 km/h (8 mph) in August.

Best time to visit Bariadi

Based on these averages, the most comfortable months for sightseeing and outdoor activities are May and June. Average highs then reach 28 °C83 °F to 29 °C85 °F. Precipitation is 8 mm0.3 in to 52 mm2.0 in per month.

The most challenging month is November, which is very wet (179 mm7.1 in).

Comfort score: months are ranked by how close they come to an ideal. That means an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.

What to pack for Bariadi

  • Wetter months (November–April) — highs 2781 to 29 °C84 °F, lows around 17 °C62 °F, about 146 mm5.8 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
  • Drier months (May–October) — highs 2883 to 33 °C91 °F, lows 1559 to 18 °C65 °F, about 27 mm1.1 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an extra layer for the cooler mornings and evenings.

How Bariadi compares

The nearest larger place is Mwanza, about 124 km to the west. Compared with it, Bariadi is on average 1 °C1.9 °F cooler. It receives a similar amount of precipitation. The difference is largest in February (1.8 °C3.2 °F cooler).

World Climates covers 34 places in Tanzania. By annual mean temperature, Bariadi is the 17th warmest of them. By annual precipitation, it is the 23rd wettest. See all of them on the Tanzania climate page.

Some places in other countries have a very similar pattern of temperature and rainfall (with seasons shifted for the other hemisphere). The closest matches are Matagalpa (Nicaragua, Aw), Uíge (Angola, Aw) and Luziânia (Brazil, Aw).

Nearby places

All places in Tanzania

Frequently asked questions

What is the warmest month in Bariadi?

September is the warmest month in Bariadi. Its average high is 33 °C (91 °F) and its average low is 18 °C (65 °F).

What is the coldest month in Bariadi?

January is the coldest month. Its average high is 27 °C (81 °F) and its average low is 17 °C (62 °F).

When does it rain the most in Bariadi?

December is the wettest month with about 180 mm (7.1 in) of precipitation. July is the driest with about 4 mm (0.2 in).

What is the best time to visit Bariadi?

Judging by long-term averages, the most comfortable months are May and June.

About this data

All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station. So they can differ from airport records. The gaps are largest on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.

Sources and method