Chato weather in September

In September, Chato sees average daytime highs of 28°C and overnight lows near 20°C, with 61 mm of rain across 12.8 wet days and about 12 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 28% of the time in September, and the air most often feels muggy.

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 Chato's 4th-clearest and 3rd-windiest month. For the whole year in context, see Chato's year-round climate.

Daytime high
28°
5th warmest
Overnight low
20°
12th coldest
Rainfall
61 mm
12.8 wet days
Daylight
12 hours
6:48 AM – 6:47 PM
Cloud cover
59%
4th clearest
Wind
8 km/h
3rd windiest
Solar energy
6.01 kWh/m²
Travel score
5.9
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical September day in Chato reaches about 28°C in the afternoon and slips back to 20°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 30°C. Set against its neighbours, September runs on par with August and about 1°C warmer than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12820
22820
32820
42820
52820
62820
72820
82820
92820
102820
112820
122820
132820
142820
152820
162820
172821
182821
192821
202821
212821
222821
232821
242821
252721
262721
272721
282721
292721
302721

Chato weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 20°7216.312.15.5
Feb28° / 20°481112.15.9
Mar28° / 20°9016.3125.4
Apr27° / 20°11418.411.95.0
May27° / 20°458.711.96.5
Jun28° / 20°122.611.97.4
Jul28° / 20°61.311.97.3
Aug28° / 20°286.111.96.6
Sep28° / 20°6112.8125.9
Oct27° / 20°12421.712.14.7
Nov26° / 20°17226.312.14.0
Dec26° / 20°11521.512.14.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15545
25545
35545
45545
55545
65545
75545
85545
95545
105545
115545
125446
135446
145446
155446
165347
175347
185248
195149
204951
214951
224753
234753
244555
254456
264357
274258
284258
294159
304060

Chance of precipitation in September

Any precipitation

Chato gets around 61 mm of rain over 12.8 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 43% and peaks near 56% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
135
236
337
438
538
639
740
840
941
1041
1141
1241
1342
1442
1542
1642
1742
1842
1943
2043
2144
2245
2346
2447
2549
2650
2752
2853
2955
3056

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 38% of days. Sticky, muggy-or-worse air turns up on roughly 38% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
110313226
29303327
39293428
48283528
57273629
67273730
76263831
86253831
96243832
105233833
115233834
125223834
135223835
145213836
155213836
165213837
175203737
185203738
195193739
205193640
215183641
224173642
234173644
244163545
254153546
263143548
273133549
283123550
293113551
303103552

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

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 6:54 AM to 6:42 AM, and sunset from 6:51 PM to 6:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:546:51
212.06:546:51
312.06:536:51
412.06:536:50
512.06:536:50
612.06:526:50
712.06:526:49
812.06:516:49
912.06:516:49
1012.06:506:49
1112.06:506:48
1212.06:496:48
1312.06:496:48
1412.06:496:47
1512.06:486:47
1612.06:486:47
1712.06:476:47
1812.06:476:46
1912.06:466:46
2012.06:466:46
2112.06:456:45
2212.06:456:45
2312.06:456:45
2412.06:446:44
2512.06:446:44
2612.06:436:44
2712.06:436:44
2812.06:426:43
2912.06:426:43
3012.06:426:43

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.01 kWh/m².

For context, solar energy here swings from a low near 5.13 kWh/m² to a high of 6.07 kWh/m² in February across the year — September's 6.01 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
106.0Bright
116.0Bright
126.0Bright
136.0Intense
146.0Intense
156.0Intense
166.0Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.0Intense
266.0Intense
276.0Intense
286.0Bright
296.0Bright
306.0Bright
Planning a trip in September

Hazard calendar for Chato

In seasonPeak

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

Chato's rainy season runs October–December, when most of the year's rain falls.

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

Is September a good time to visit Chato?

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

5.9
Sightseeing
5th-best month of the year
6.2
Beach & pool
6th-best month of the year

September is a reasonable time to visit Chato for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Chato in September

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

In September, Chato sees daytime highs around 28°C and nights near 20°C. Pack light clothes and sun protection. Worth having: rain gear. About 13 days see rain.

light clothessun protectionrain gear

UV index in Chato in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chato peaks around March 14 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 14UV 16Jun 18UV 10
UV index (midday)Level
Jan12Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec12Extreme

Air quality in Chato in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Chato is worst in July — around 22 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (April, 13 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 1422 µg/m³Apr 2113 µg/m³
PM2.5 (µg/m³)Level
Jan22Moderate
Feb20Moderate
Mar16Moderate
Apr13Moderate
May13Moderate
Jun21Moderate
Jul22Moderate
Aug20Moderate
Sep17Moderate
Oct14Moderate
Nov15Moderate
Dec17Moderate
Location & terrain

Where is Chato?

Chato sits at 2.6°S, 31.8°E, 1,150 m above sea level, in Tanzania. The nearest listed city is Mhalamba, 28 km away.

UyovuKasamwaDiobahika

Topography around Chato

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

Within 3 km, the terrain around Chato has only modest variations in elevation — a maximum elevation change of 47 m around an average of 1,143 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 271 m; within 80 km, large variations in elevation — a maximum elevation change of 710 m.

The land around Chato is covered by water (34%) and cropland (30%) within 3 km, water (45%) and cropland (33%) within 16 km, and cropland (36%) and water (21%) within 80 km.

3 km
47 m
16 km
271 m
80 km
710 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Mhalamba 28 km · Katoro 44 km · Buseresere 48 km · Biharamulo 51 km · Geita 58 km · Uyovu 77 km · Kasamwa 78 km · Diobahika 83 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
Christian 63%Muslim 34%folk religion 1%

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 Chato (-2.6378°, 31.7669°, elevation 1,150 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).