Climate and monthly weather forecast
Mwanza, Tanzania


The climate of Mwanza

Mwanza, located in Tanzania, is subjected to a Tropical wet and dry climate, otherwise known as a savanna climate as per Köppen climate classification. The climatic pattern is denoted as 'Aw'. With only slight fluctuations between the hottest and coldest months, Mwanza experiences consistently warm temperatures year-round. The spread of high temperatures ranges from 28°C (82.4°F) to 29°C (84.2°F) and the lower temperatures fluctuate mildly from 16°C (60.8°F) to 19°C (66.2°F).

Mwanza notably experiences rainfall majorly evident during certain months. The monthly average rainfall can reach a maximum of 155mm (6.1") and fall to a minimal 13mm (0.51"). A significant variation in the number of rainfall days is also noted, with a peak at 19 days and a minimum of 5 days per month. Daylight hours and sunshine hours show less dramatic variations, staying around 12 to 12.3 hours and 7 to 9 hours respectively. The UV index remains high throughout the year, indicating the need for sun protection, particularly during midday.

There are distinctly drier periods in Mwanza. The amount of precipitation drops significantly from June to August, reaching the lowest point in July with 13mm (0.51"). The number of rainfall days also decreases during this time, achieving a minimum of 5 days. On the other hand, March and December records the highest rainfall measures, amounting to 155mm (6.1") and 147mm (5.79") respectively.

The best time to visit Mwanza

The period from June to August can be considered the most welcoming time for visitors in Mwanza due to the less frequent rain showers and the drop in humidity. June is the sunniest period, offering up to 9 sunshine hours per day. The UV index, however, still hovers around 11, calling for necessary sun protection measures. The temperature, relatively uniform throughout the year, is quite balmy during this time with a high of 29°C (84.2°F).

The worst time to visit Mwanza

The months of March and December are considered less desirable for visitors due to the higher levels of rainfall, amounting to 155mm (6.1") and 147mm (5.79") respectively. These months are associated with the most rainfall days, reaching up to 19 days, implying that chances for outdoor activities might be significantly reduced. Despite this, temperatures continue to range between 28°C (82.4°F) to 29°C (84.2°F), maintaining the warm climate that Mwanza is known for.

Spring weather in Mwanza

Spring in Mwanza, which spans the months of September, October, and November, is characterized by an increase in rainfall from 20mm (0.79") in September to 114mm (4.49") in November. Correspondingly, the number of rainy days also graduates from 6 to 15 days. Temperatures during this period remain comfortably warm ranging from highs of 29°C (84.2°F) to lows of 17°C (62.6°F) to 19°C (66.2°F). Sunshine duration, however, reduces slightly from an average of 8 hours in September to 7 hours in November.

Summer weather in Mwanza

Summers in Mwanza, occurring during December, January, and February, witness a surge in the amount of rainfall, particularly in December, with precipitation reaching up to 147mm (5.79"). January and February observe a decline in rainfall, with 104mm (4.09") and 97mm (3.82") respectively. The average temperature during these months remain stable with highs rotating around 29°C (84.2°F) and lows between 18°C (64.4°F) and 19°C (66.2°F). The months offer up to 7 sunshine hours per day with a consistently high UV index of 12.

Autumn weather in Mwanza

During the autumn months of March, April, and May, Mwanza undergoes a season of heavy precipitation. March records the highest average rainfall at 155mm (6.1"), while May experiences a significant decrease to 94mm (3.7"). Meanwhile, daylight hours and sunshine hours stay relatively constant at around 12.1 hours and 7 hours per day respectively. Temperatures during the autumn range from a high of 29°C (84.2°F) to a low of 18°C (64.4°F).

Winter weather in Mwanza

Winter, between June and August, offers a respite from the heavy rainfalls Mwanza usually experiences. Rainfall reduces significantly during this time averaging from 13mm (0.51") to 20mm (0.79"). Correspondingly, the number of rainy days dwindles to as low as 5 in July. Despite being winter, temperatures remain high, tracking between 29°C (84.2°F) for the hottest months and dropping to 16°C (60.8°F) during the nights. Sunlight persists for around 9 hours per day, continuing to provide good conditions for outdoor activities.

Weather in January

The beginning of the year in Mwanza, Tanzania is usually a time of substantial precipitation with rainfall peaking at 97mm (3.82"). This period presents a blend of mild warmth with sufficient daylight, marked by average high and low temperatures remaining steady. Weather in January »

Weather in February

The month of February offers slightly more wet weather compared to January, with rainfall at an average height of 104mm (4.09"). Despite the slight bump in rainfall, temperatures stay steady, similar to the preceding month, and provide a continued comfortable climate. Weather in February »

Weather in March

March weather in Mwanza is marked by a peak in rainfall, reaching a high of 155mm (6.1") that month. However, despite the increase in rainfall, temperature averages, daylight duration and sunshine hours remain rather stable compared to February. Weather in March »

Weather in April

As the fourth month rolls in, it brings a slight decrease in rainfall with an averaged 145mm (5.71"), indicating a slight dip in precipitation from March. Despite the reduction in rainfall, this month follows a similar pattern to its predecessor with regards to parameters such as temperature, daylight, and sunshine hours. Weather in April »

Weather in May

The weather in May in Mwanza shows a significant decrease in rainfall compared to April with the total down to 94mm (3.7"). This month signifies the beginning of the dry season, with less precipitation and consistent temperature averages. Weather in May »

Weather in June

June is characterized by a substantial fall in the amount of rainfall, standing at merely 20mm (0.79"). The sixth month of the year brings about a clear shift towards drier weather, with near constant temperature averages compared to May. Weather in June »

Weather in July

July sees the continuation of dry weather in Mwanza, with the average rainfall dropping further to 13mm (0.51"). This particular month marks the period with the least amount of rainfall within the year, providing plenty of opportunities for outdoor activities. Weather in July »

Weather in August

The month of August presents a shift in Mwanza's weather pattern with rainfall rising slightly to 20mm (0.79"). Even though this represents an increase, the town stays relatively dry, ensuring that the weather condition remains pleasing. Weather in August »

Weather in September

In September, the weather proceeds in a similar vein to August, underscoring the end of dry weather, with rainfall averaging at 46mm (1.81"). This month is hardly a period of harsh weather change, but it does signify a subtle rise in humidity levels. Weather in September »

Weather in October

October weather continues the trend set by September with equal rainfall at 46mm (1.81"). As such, it brings a gradual transition from the dry to the rainy season, while temperature averages, sunlight, and daylight hours remain stable. Weather in October »

Weather in November

November transitions Mwanza into a wetter season, with rainfall significant at 114mm (4.49"). Despite this, the city’s temperatures do not alter much from October, sustaining a warm environment. The recurrence of rainfall indicates the onset of the rainy season and might call for careful planning of outdoor activities. Weather in November »

Weather in December

The year concludes with a rise in Mwanza’s average rainfall to 147mm (5.79"), marking December as one of the wettest months. Despite the increased precipitation, Mwanza's temperature remains steady with the preceding months, ensuring warm weather. Weather in December »

Frequently asked questions

What part of the year is the hottest in Mwanza?

In Mwanza, Tanzania, the months of January, March, May through November are known for the peak temperatures, reaching an average high of 29°C (84.2°F).

How much does it rain in Mwanza?

Throughout the year, in Mwanza, Tanzania, there are 138 rainfall days, and 1001mm (39.41") of precipitation is accumulated.

What are the months with the least sunshine in Mwanza?

The months with the least sunshine are January through April, November and December, with an average of 7h of sunshine.

What is the month with the highest UV index in Mwanza?

January through May, August through December, with an average maximum UV index of 12, are months with the highest UV index in Mwanza.

What are the coldest months in Mwanza?

The months of February, April and December are noted for their lowest temperatures in Mwanza, with an average high-temperature of 28°C (82.4°F).

What is the rainiest month in Mwanza?

The month with the most rainfall is March, when the rain falls for 15 days and typically aggregates up to 155mm (6.1") of precipitation.

What is the month with the shortest days in Mwanza?

With an average of 12h and 0min of daylight, June has the shortest days of the year in Mwanza.

What is the month with the most sunshine in Mwanza?

The months with the most sunshine in Mwanza, Tanzania, are June through August, with an average of 9h of sunshine.

When is the lowest UV index in Mwanza?

The months with the lowest UV index in Mwanza are June and July, with an average maximum UV index of 11.

What is the driest month in Mwanza?

The month with the least rainfall in Mwanza, Tanzania, is July, when the rain falls for 5 days and typically collects 13mm (0.51") of precipitation.

When are the longest days in Mwanza?

The month with the longest days in Mwanza, Tanzania, is December, with an average of 12h and 18min of daylight.

Is there Daylight Saving Time (DST) in Mwanza?

Mwanza, Tanzania, does not utilize Daylight Saving Time (DST). EAT timezone is used over the entire year.

Average temperature
Mwanza, Tanzania

Average temperature - Mwanza, Tanzania

The warmest months (with the highest average high temperature) are January, March, May, June, July, August, September, October and November (29°C).
The months with the lowest average high temperature are February, April and December (28°C).

The months with the highest average low temperature are October and November (19°C).
The coldest month (with the lowest average low temperature) is July (16°C).


Average rainfall
Mwanza, Tanzania

Average rainfall - Mwanza, Tanzania

The wettest month (with the highest rainfall) is March (155mm).
The driest month (with the least rainfall) is July (13mm).


Average rainfall days
Mwanza, Tanzania

Average rainfall days - Mwanza, Tanzania

The month with the highest number of rainy days is April (19 days).
The months with the least rainy days are July and August (5 days).


Average daylight / Average sunshine
Mwanza, Tanzania

Average daylight / Average sunshine - Mwanza, Tanzania

The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 12h and 0min).

The months with the most sunshine are June, July and August (Average sunshine: 9h).
The months with the least sunshine are January, February, March, April, November and December (Average sunshine: 7h).


Average UV index
Mwanza, Tanzania

Average UV index - Mwanza, Tanzania

The months with the highest UV index are January, February, March, April, May, August, September, October, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 11).


Mwanza, Tanzania

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