Njombe, Tanzania climate

Cwb Subtropical highland (dry winter)

Njombe has a mildly seasonal mild-temperate climate (Subtropical highland (dry winter), Köppen Cwb). The hottest month is November with an average daily high near 27°C, while the coldest is July averaging around 9°C at night. Precipitation totals about 1296 mm a year and is strongly seasonal — January alone averages 292 mm while July barely receives 8 mm.

☀️ Summers

Warm

Highs near 27°C in November.

❄️ Winters

Cool

Lows near 9°C in July.

🌧️ Rain

Wet

About 1296 mm of rain a year.

Wettest in January

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)

Njombe climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	23	23	23	22	21	20	20	23	25	27	27	25
Avg temp (°C)	19	19	19	18	17	15	14	16	18	20	21	20
Avg low (°C)	16	15	15	14	12	9	9	10	11	14	15	16
Precipitation (mm)	292	273	250	107	31	9	8	10	9	29	75	204

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	23	23	23	22	21	20
Avg temp (°C)	19	19	19	18	17	15
Avg low (°C)	16	15	15	14	12	9
Precipitation (mm)	292	273	250	107	31	9

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	20	23	25	27	27	25
Avg temp (°C)	14	16	18	20	21	20
Avg low (°C)	9	10	11	14	15	16
Precipitation (mm)	8	10	9	29	75	204

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	89	87	86	78	63	54	54	54	53	60	71	83
Relative humidity (%)	87	88	89	89	86	82	76	70	64	62	67	79
Wind speed (m/s)	0.6	0.5	0.6	0.7	0.6	0.6	0.8	0.9	1.1	1.3	1.2	0.9

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	89	87	86	78	63	54
Relative humidity (%)	87	88	89	89	86	82
Wind speed (m/s)	0.6	0.5	0.6	0.7	0.6	0.6

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	54	54	53	60	71	83
Relative humidity (%)	76	70	64	62	67	79
Wind speed (m/s)	0.8	0.9	1.1	1.3	1.2	0.9

Methodology & sources

Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →