Climate Insights for Shanwa

Maswa District, Simiyu Region, Tanzania

Hottest
September
31°C peak
Coldest
July
17°C low
Wettest
November
178mm rain
Best to Visit
February, May, June
Mild temps & low rain

Climate Overview

The climate in Shanwa is warm and mild. The average annual temperature is 23°C and approximately 1023mm of precipitation falls per year. November is the wettest month, receiving around 178mm of rainfall. Shanwa sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 28° Average: 23° Min: 18° Feb Max: 29° Average: 24° Min: 19° Mar Max: 29° Average: 23° Min: 19° Apr Max: 28° Average: 23° Min: 19° May Max: 29° Average: 23° Min: 18° Jun Max: 29° Average: 23° Min: 18° Jul Max: 29° Average: 23° Min: 17° Aug Max: 30° Average: 24° Min: 18° Sep Max: 31° Average: 25° Min: 19° Oct Max: 31° Average: 25° Min: 19° Nov Max: 29° Average: 23° Min: 19° Dec Max: 28° Average: 22° Min: 18°
Max
Average
Min

Shanwa sees moderate temperature variation throughout the year, ranging from 17°C to 31°C. The warmest month is September, when average highs reach 31°C and the mean temperature sits around 25°C. July is the coolest month, with minimum temperatures around 17°C and an average of 23°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs.

Precipitation

0mm 50mm 100mm 150mm 200mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 143mm Feb Precipitation: 98mm Mar Precipitation: 133mm Apr Precipitation: 169mm May Precipitation: 22mm Jun Precipitation: 5mm Jul Precipitation: 9mm Aug Precipitation: 11mm Sep Precipitation: 14mm Oct Precipitation: 70mm Nov Precipitation: 178mm Dec Precipitation: 172mm
Precipitation

Shanwa is a moderately rainy area, receiving approximately 1023mm of precipitation annually, which averages out to around 85mm per month. The wettest month is November, averaging 178mm of rainfall. December and April also tend to see above-average precipitation. The driest month is June, with just 5mm. That's 173mm less than November, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 2km/h Feb Wind Speed: 2km/h Mar Wind Speed: 2km/h Apr Wind Speed: 3km/h May Wind Speed: 4km/h Jun Wind Speed: 4km/h Jul Wind Speed: 4km/h Aug Wind Speed: 4km/h Sep Wind Speed: 3km/h Oct Wind Speed: 3km/h Nov Wind Speed: 2km/h Dec Wind Speed: 2km/h
Wind Speed

Shanwa is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 2km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

Seasons

Winter
Dec 21
Spring
Sep 23
Summer
Dec 21
Autumn
Mar 20

91 days until Spring

It is currently winter in Shanwa, which began on June 21, 2026. Shanwa sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in September at around 31°C, while the coldest stretch bottoms out in July near 17°C. Spring is next, beginning on September 23, 2026 — 91 days from now.

Spring

Temperatures range from 19 to 31°C. Precipitation is moderate at around 262mm for the season, averaging 87mm per month. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 18 to 29°C. Rainfall is heavy, totalling around 413mm across the season with a monthly average of 138mm. Winds are generally light, averaging 2km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 18 to 29°C. Rainfall is heavy, totalling around 324mm across the season with a monthly average of 108mm. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 17 to 30°C. Precipitation is minimal, with only around 24mm for the entire season. Winds are generally light, averaging 4km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 23°
Feb 24°
Mar 23°
Apr 23°
May 23°
Jun 23°
Jul 23°
Aug 24°
Sep 25°
Oct 25°
Nov 23°
Dec 22°

The best time to visit Shanwa is during February, May, June, July, August, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 33mm per month. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Shanwa based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
18 °C
28 °C
2 km/h
143 mm
0 cm
Feb
19 °C
29 °C
2 km/h
98 mm
0 cm
Mar
19 °C
29 °C
2 km/h
133 mm
0 cm
Apr
19 °C
28 °C
3 km/h
169 mm
0 cm
May
18 °C
29 °C
4 km/h
22 mm
0 cm
Jun Current
18 °C
29 °C
4 km/h
5 mm
0 cm
Jul
17 °C
29 °C
4 km/h
9 mm
0 cm
Aug
18 °C
30 °C
4 km/h
11 mm
0 cm
Sep
19 °C
31 °C
3 km/h
14 mm
0 cm
Oct
19 °C
31 °C
3 km/h
70 mm
0 cm
Nov
19 °C
29 °C
2 km/h
178 mm
0 cm
Dec
18 °C
28 °C
2 km/h
172 mm
0 cm
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