Katerero weather in September

In September, Katerero sees average daytime highs of 24°C and overnight lows near 20°C, with 93 mm of rain across 19.6 wet days and about 12 hours of daylight. It is the 6th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 24% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 hours at the start of September to 12 hours by month's end. Set against the rest of the year, September is Katerero's 4th-clearest and 6th-windiest month. For the whole year in context, see Katerero's year-round climate.

Daytime high
24°
6th warmest
Overnight low
20°
3rd coldest
Rainfall
93 mm
19.6 wet days
Daylight
12 hours
6:48 AM – 6:47 PM
Cloud cover
64%
4th clearest
Wind
11 km/h
6th windiest
Solar energy
5.6 kWh/m²
Travel score
5.3
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical September day in Katerero reaches about 24°C in the afternoon and slips back to 20°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 25°C. Set against its neighbours, September runs on par with August and on par with October.

15°18°20°23°25°151015202530
Avg high (°C)Avg low (°C)
12320
22320
32320
42320
52320
62420
72420
82420
92420
102420
112420
122420
132420
142420
152420
162420
172421
182421
192421
202421
212421
222421
232421
242421
252421
262421
272421
282421
292421
302421

Katerero weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 21°13423.612.14.8
Feb25° / 21°12120.3124.9
Mar25° / 21°17324.7124.6
Apr24° / 21°22226.4124.1
May24° / 21°14822.211.95.1
Jun24° / 21°4910.211.96.9
Jul23° / 21°264.711.97.8
Aug23° / 20°6112.3126.6
Sep24° / 20°9319.6125.3
Oct24° / 21°14725.3124.4
Nov23° / 20°16526.512.14.1
Dec24° / 21°15225.912.14.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 58%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14951
24951
34951
44951
54951
64852
74852
84753
94753
104654
114654
124654
134555
144555
154456
164357
174258
184159
194060
204060
213961
223763
233664
243664
253466
263466
273367
283268
293169
303070

Chance of precipitation in September

Any precipitation

Katerero gets around 93 mm of rain over 19.6 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 65% and peaks near 73% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
156
257
358
459
561
662
762
863
964
1064
1165
1265
1365
1466
1565
1665
1765
1865
1965
2065
2166
2266
2367
2467
2568
2669
2770
2871
2972
3073

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 50% of days. Sticky, muggy-or-worse air turns up on roughly 50% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)
195932
285933
375934
475835
565836
655837
755738
845739
945541
1045442
1145244
1235245
1335047
1434948
1534750
1634651
1734453
1834354
1934156
2034057
2133859
2233760
2333661
2423563
2523464
2623365
2723266
2823266
2923167
3013168

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 hours 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 0 minutes over September. Sunrise moves from 6:54 AM to 6:42 AM, and sunset from 6:52 PM to 6:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:546:52
212.06:536:52
312.06:536:51
412.06:526:51
512.06:526:51
612.06:526:50
712.06:516:50
812.06:516:50
912.06:506:49
1012.06:506:49
1112.06:506:49
1212.06:496:48
1312.06:496:48
1412.06:486:48
1512.06:486:47
1612.06:486:47
1712.06:476:47
1812.06:476:46
1912.06:466:46
2012.06:466:46
2112.06:466:46
2212.06:456:45
2312.06:456:45
2412.06:446:45
2512.06:446:44
2612.06:446:44
2712.06:436:44
2812.06:436:43
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 5.6 kWh/m².

For context, solar energy here swings from a low near 4.95 kWh/m² to a high of 5.92 kWh/m² in February across the year — September's 5.6 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in September

Is September a good time to visit Katerero?

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

5.3
Sightseeing
4th-best month of the year
4.4
Beach & pool
4th-best month of the year

September is a reasonable time to visit Katerero for sightseeing.

What to pack for Katerero in September

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

In September, Katerero sees daytime highs around 24°C and nights near 20°C. Pack rain gear. Worth having: light clothes and sun protection. About 20 days see rain.

rain gearlight clothessun protection

UV index in Katerero 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 Katerero peaks around March 17 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 17UV 16Jun 19UV 10
UV index (midday)Level
Jan12Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug10Extreme
Sep13Extreme
Oct13Extreme
Nov12Extreme
Dec11Extreme

Air quality in Katerero 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 Katerero is worst in January — around 28 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (April, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJan 1927 µg/m³Apr 2113 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb24Moderate
Mar18Moderate
Apr13Moderate
May14Moderate
Jun20Moderate
Jul24Moderate
Aug26Moderate
Sep21Moderate
Oct16Moderate
Nov16Moderate
Dec20Moderate
Location & terrain

Where is Katerero?

Katerero sits at 1.4°S, 31.7°E, 1,164 m above sea level, in Tanzania. The nearest listed city is Bukoba, 12 km away.

KasaaliKalisizoNakivale Refugee CampLwengo

Topography around Katerero

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

Within 3 km, the terrain around Katerero has only modest variations in elevation — a maximum elevation change of 179 m around an average of 1,192 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 278 m; within 80 km, large variations in elevation — a maximum elevation change of 601 m.

The land around Katerero is covered by grassland (44%), trees (30%) and shrubs (21%) within 3 km, grassland (30%), trees (28%) and water (21%) within 16 km, and water (48%) and grassland (24%) within 80 km.

3 km
179 m
16 km
278 m
80 km
601 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Bukoba 12 km · Kamachumu 27 km · Nsunga 47 km · Nshamba 49 km · Kasaali 89 km · Kalisizo 97 km · Nakivale Refugee Camp 110 km · Lwengo 115 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 Katerero (-1.4°, 31.7333°, elevation 1,164 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).