Basotu weather in September

In September, Basotu sees average daytime highs of 27°C and overnight lows near 14°C, with 3 mm of rain across 0.7 wet days and about 12 hours of daylight. It is the 3rd-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 39% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Basotu's 1st-clearest and 1st-windiest month. For the whole year in context, see Basotu's year-round climate.

Daytime high: 27°; 3rd warmest
Overnight low: 14°; 4th coldest
Rainfall: 3 mm; 0.7 wet days
Daylight: 12 hours; 6:35 AM – 6:33 PM
Cloud cover: 47%; 1st clearest
Wind: 15 km/h; 1st windiest
Solar energy: 7.12 kWh/m²
Travel score: 8.1; out of 10

← August Basotu year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical September day in Basotu reaches about 27°C in the afternoon and slips back to 14°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 28°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	26	26	26	26	26	26	26	26	26	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	28
Avg low (°C)	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	15	15	15	15	15	15	15	15

	Avg high (°C)	Avg low (°C)
1	26	14
2	26	14
3	26	14
4	26	14
5	26	14
6	26	14
7	26	14
8	26	14
9	26	14
10	27	14
11	27	14
12	27	14
13	27	14
14	27	14
15	27	14
16	27	14
17	27	14
18	27	14
19	27	14
20	27	14
21	27	14
22	27	14
23	27	15
24	27	15
25	27	15
26	27	15
27	27	15
28	27	15
29	27	15
30	28	15

Basotu weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 10th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	25° / 16°	233	18.5	12.2	5.4
Feb	26° / 16°	170	14.8	12.1	5.6
Mar	26° / 16°	238	18.8	12	5.4
Apr	25° / 16°	168	14.9	11.9	6.0
May	25° / 15°	34	6	11.8	7.7
Jun	25° / 14°	5	1.1	11.8	8.3
Jul	24° / 13°	1	0.2	11.8	8.6
Aug	25° / 13°	2	0.3	11.9	8.4
Sep	27° / 14°	3	0.7	12	8.1
Oct	28° / 16°	20	3.1	12.1	7.4
Nov	27° / 16°	119	10.5	12.2	6.3
Dec	26° / 16°	273	18.5	12.2	5.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 29% of September, with mostly cloudy or overcast conditions the remaining 32%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	69	69	68	68	69	69	68	68	69	69	68	69	69	69	69	69	69	69	69	68	68	68	68	67	66	66	66	65	64	64
Cloudier (%)	31	31	32	32	31	31	32	32	31	31	32	31	31	31	31	31	31	31	31	32	32	32	32	33	34	34	34	35	36	36

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	68	32
4	68	32
5	69	31
6	69	31
7	68	32
8	68	32
9	69	31
10	69	31
11	68	32
12	69	31
13	69	31
14	69	31
15	69	31
16	69	31
17	69	31
18	69	31
19	69	31
20	68	32
21	68	32
22	68	32
23	68	32
24	67	33
25	66	34
26	66	34
27	66	34
28	65	35
29	64	36
30	64	36

Chance of precipitation in September

Any precipitation

Basotu gets around 3 mm of rain over 0.7 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 2% and peaks near 5% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	3	3	3	3	4	4	4	5

	Rain chance (%)
1	2
2	2
3	2
4	2
5	2
6	2
7	2
8	2
9	2
10	2
11	2
12	2
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	3
24	3
25	3
26	3
27	4
28	4
29	4
30	5

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	99	98	98	98	98	97	97
Comfortable (%)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2	3	3

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	98	2
26	98	2
27	98	2
28	98	2
29	97	3
30	97	3

Wind in September

Winds average 15 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 15 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	15	light breeze
2	15	light breeze
3	15	light breeze
4	15	light breeze
5	15	light breeze
6	15	light breeze
7	15	light breeze
8	15	light breeze
9	15	light breeze
10	15	light breeze
11	15	light breeze
12	15	light breeze
13	15	light breeze
14	15	light breeze
15	15	light breeze
16	15	light breeze
17	15	light breeze
18	15	light breeze
19	15	light breeze
20	15	light breeze
21	15	light breeze
22	15	light breeze
23	15	light breeze
24	15	light breeze
25	15	light breeze
26	15	light breeze
27	15	light breeze
28	15	light breeze
29	15	light breeze
30	15	light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over September. Sunrise moves from 6:42 AM to 6:28 AM, and sunset from 6:37 PM to 6:30 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0
Sunrise (AM)	6:42	6:41	6:41	6:41	6:40	6:40	6:39	6:39	6:38	6:38	6:37	6:37	6:36	6:36	6:35	6:35	6:34	6:34	6:33	6:33	6:32	6:32	6:31	6:31	6:30	6:30	6:29	6:29	6:28	6:28
Sunset (PM)	6:37	6:37	6:36	6:36	6:36	6:36	6:35	6:35	6:35	6:35	6:35	6:34	6:34	6:34	6:34	6:33	6:33	6:33	6:33	6:32	6:32	6:32	6:32	6:31	6:31	6:31	6:31	6:30	6:30	6:30

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.9	6:42	6:37
2	11.9	6:41	6:37
3	11.9	6:41	6:36
4	11.9	6:41	6:36
5	11.9	6:40	6:36
6	11.9	6:40	6:36
7	11.9	6:39	6:35
8	11.9	6:39	6:35
9	11.9	6:38	6:35
10	12.0	6:38	6:35
11	12.0	6:37	6:35
12	12.0	6:37	6:34
13	12.0	6:36	6:34
14	12.0	6:36	6:34
15	12.0	6:35	6:34
16	12.0	6:35	6:33
17	12.0	6:34	6:33
18	12.0	6:34	6:33
19	12.0	6:33	6:33
20	12.0	6:33	6:32
21	12.0	6:32	6:32
22	12.0	6:32	6:32
23	12.0	6:31	6:32
24	12.0	6:31	6:31
25	12.0	6:30	6:31
26	12.0	6:30	6:31
27	12.0	6:29	6:31
28	12.0	6:29	6:30
29	12.0	6:28	6:30
30	12.0	6:28	6:30

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 7.12 kWh/m².

For context, solar energy here swings from a low near 5.74 kWh/m² to a high of 7.16 kWh/m² in October across the year — September's 7.12 kWh/m² sits near the top of that range.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	6.8	6.8	6.8	6.9	6.9	6.9	6.9	7.0	7.0	7.0	7.0	7.0	7.1	7.1	7.1	7.2	7.2	7.2	7.2	7.2	7.3	7.3	7.3	7.3	7.3	7.3	7.3	7.3	7.3	7.3
Level	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	6.8	Intense
2	6.8	Intense
3	6.8	Intense
4	6.9	Intense
5	6.9	Intense
6	6.9	Intense
7	6.9	Intense
8	7.0	Intense
9	7.0	Intense
10	7.0	Intense
11	7.0	Intense
12	7.0	Intense
13	7.1	Intense
14	7.1	Intense
15	7.1	Intense
16	7.2	Intense
17	7.2	Intense
18	7.2	Intense
19	7.2	Intense
20	7.2	Intense
21	7.3	Intense
22	7.3	Intense
23	7.3	Intense
24	7.3	Intense
25	7.3	Intense
26	7.3	Intense
27	7.3	Intense
28	7.3	Intense
29	7.3	Intense
30	7.3	Intense

Planning a trip in September

Hazard calendar for Basotu

In seasonPeak

None of Basotu's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Basotu sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Basotu's monsoon runs December–April, when most of the year's rain falls.

Cyclone

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Basotu?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

8.1

Sightseeing

4th-best month of the year

8.1

Beach & pool

1st-best month of the year

September is one of the better times to visit Basotu for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Basotu in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Basotu sees daytime highs around 27°C and nights near 14°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

UV index in Basotu in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Basotu peaks around March 14 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 11 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	14	16	16	15	12	10	11	12	14	15	14	13
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	14	Extreme
Feb	16	Extreme
Mar	16	Extreme
Apr	15	Extreme
May	12	Extreme
Jun	10	Extreme
Jul	11	Extreme
Aug	12	Extreme
Sep	14	Extreme
Oct	15	Extreme
Nov	14	Extreme
Dec	13	Extreme

Location & terrain

Where is Basotu?

Basotu sits at 4.4°S, 35.1°E, 1,609 m above sea level, in Tanzania. The nearest listed city is Mtinko, 33 km away.

Topography around Basotu

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Basotu.

Within 3 km, the terrain around Basotu has only modest variations in elevation — a maximum elevation change of 60 m around an average of 1,618 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 274 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,357 m.

The land around Basotu is covered by water (35%) and cropland (32%) within 3 km, cropland (59%) within 16 km, and cropland (42%) and shrubs (28%) within 80 km.

3 km

60 m

water 35%

16 km

274 m

cropland 59%

80 km

2,357 m

cropland 42%

treesshrubsgrasslandcroplandartificial surfaceswater

← August Basotu year-round climate October →Best places to visit in September

September weather nearby: Mtinko 33 km · Katesh 38 km · Bashanet 40 km · Ilongero 41 km · Nangwa 42 km · Dongobesh 47 km · Dareda 54 km · Igugunu 55 km

Tanzania travel facts

Travel advisory: Level 3; Reconsider Travel
Power plugs: Type D / G; 230 V · 50 Hz
Prices: ≈ 29% of US; price level, 2025
GDP per capita: $1,319; 2025
Happiness: 3.9 / 10; World Happiness, 2025
Safe drinking water: 31%; of population, 2024
Homicide rate: 3.7; per 100k, 2020
Road deaths: 31.1; per 100k/yr, 2019
Income group: Lower middle; World Bank
English: Low; EF EPI 479
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Basotu (-4.3667°, 35.0833°, elevation 1,609 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	26	14
2	26	14
3	26	14
4	26	14
5	26	14
6	26	14
7	26	14
8	26	14
9	26	14
10	27	14
11	27	14
12	27	14
13	27	14
14	27	14
15	27	14
16	27	14
17	27	14
18	27	14
19	27	14
20	27	14
21	27	14
22	27	14
23	27	15
24	27	15
25	27	15
26	27	15
27	27	15
28	27	15
29	27	15
30	28	15

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	68	32
4	68	32
5	69	31
6	69	31
7	68	32
8	68	32
9	69	31
10	69	31
11	68	32
12	69	31
13	69	31
14	69	31
15	69	31
16	69	31
17	69	31
18	69	31
19	69	31
20	68	32
21	68	32
22	68	32
23	68	32
24	67	33
25	66	34
26	66	34
27	66	34
28	65	35
29	64	36
30	64	36

	Rain chance (%)
1	2
2	2
3	2
4	2
5	2
6	2
7	2
8	2
9	2
10	2
11	2
12	2
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	3
24	3
25	3
26	3
27	4
28	4
29	4
30	5

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	98	2
26	98	2
27	98	2
28	98	2
29	97	3
30	97	3

	Avg high (°C)	Avg low (°C)
1	26	14
2	26	14
3	26	14
4	26	14
5	26	14
6	26	14
7	26	14
8	26	14
9	26	14
10	27	14
11	27	14
12	27	14
13	27	14
14	27	14
15	27	14
16	27	14
17	27	14
18	27	14
19	27	14
20	27	14
21	27	14
22	27	14
23	27	15
24	27	15
25	27	15
26	27	15
27	27	15
28	27	15
29	27	15
30	28	15

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	68	32
4	68	32
5	69	31
6	69	31
7	68	32
8	68	32
9	69	31
10	69	31
11	68	32
12	69	31
13	69	31
14	69	31
15	69	31
16	69	31
17	69	31
18	69	31
19	69	31
20	68	32
21	68	32
22	68	32
23	68	32
24	67	33
25	66	34
26	66	34
27	66	34
28	65	35
29	64	36
30	64	36

	Rain chance (%)
1	2
2	2
3	2
4	2
5	2
6	2
7	2
8	2
9	2
10	2
11	2
12	2
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	3
24	3
25	3
26	3
27	4
28	4
29	4
30	5

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	98	2
26	98	2
27	98	2
28	98	2
29	97	3
30	97	3

	Avg high (°C)	Avg low (°C)
1	26	14
2	26	14
3	26	14
4	26	14
5	26	14
6	26	14
7	26	14
8	26	14
9	26	14
10	27	14
11	27	14
12	27	14
13	27	14
14	27	14
15	27	14
16	27	14
17	27	14
18	27	14
19	27	14
20	27	14
21	27	14
22	27	14
23	27	15
24	27	15
25	27	15
26	27	15
27	27	15
28	27	15
29	27	15
30	28	15

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	68	32
4	68	32
5	69	31
6	69	31
7	68	32
8	68	32
9	69	31
10	69	31
11	68	32
12	69	31
13	69	31
14	69	31
15	69	31
16	69	31
17	69	31
18	69	31
19	69	31
20	68	32
21	68	32
22	68	32
23	68	32
24	67	33
25	66	34
26	66	34
27	66	34
28	65	35
29	64	36
30	64	36

	Rain chance (%)
1	2
2	2
3	2
4	2
5	2
6	2
7	2
8	2
9	2
10	2
11	2
12	2
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	3
24	3
25	3
26	3
27	4
28	4
29	4
30	5

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	98	2
26	98	2
27	98	2
28	98	2
29	97	3
30	97	3