Bariadi weather in September

In September, Bariadi sees average daytime highs of 31°C and overnight lows near 19°C, with 20 mm of rain across 4.3 wet days and about 12 hours of daylight. It is the 1st-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 20% 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 Bariadi's 3rd-clearest and 4th-windiest month. For the whole year in context, see Bariadi's year-round climate.

Daytime high
31°
1st warmest
Overnight low
19°
11th coldest
Rainfall
20 mm
4.3 wet days
Daylight
12 hours
6:39 AM – 6:38 PM
Cloud cover
61%
3rd clearest
Wind
10 km/h
4th windiest
Solar energy
6.39 kWh/m²
Travel score
5.1
out of 10

Bariadi is town in Tanzania.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical September day in Bariadi reaches about 31°C in the afternoon and slips back to 19°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13018
23018
33018
43019
53019
63019
73019
83019
93119
103119
113119
123119
133119
143119
153119
163119
173119
183119
193119
203119
213119
223119
233119
243119
253119
263119
273119
283119
293119
303119

Bariadi weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 18°11816.112.15.0
Feb29° / 19°9213.612.14.7
Mar29° / 19°13417124.5
Apr28° / 18°13517.411.94.8
May28° / 18°43811.96.0
Jun29° / 18°71.911.86.4
Jul29° / 18°30.511.96.5
Aug30° / 18°112.411.95.9
Sep31° / 19°204.3125.1
Oct31° / 19°569.712.14.5
Nov29° / 19°1281612.14.4
Dec28° / 18°14818.412.24.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 30% of September, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15347
25347
35347
45347
55347
65347
75347
85347
95446
105446
115347
125446
135446
145347
155347
165347
175248
185149
195050
205050
214852
224852
234654
244654
254456
264456
274357
284159
294159
304159

Chance of precipitation in September

Any precipitation

Bariadi gets around 20 mm of rain over 4.3 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 14% and peaks near 21% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
111
211
312
412
512
612
712
812
912
1012
1112
1212
1312
1412
1513
1613
1713
1813
1914
2014
2115
2216
2316
2417
2518
2619
2719
2820
2920
3021

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 71% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
1731710
2721810
3721810
4721810
5721810
6721810
7721810
8721810
9731710
1074179
1174179
1274179
1374179
1474179
1574179
1674179
1774179
1873189
1973189
2073189
2172199
22702010
23702010
24682111
25672211
26652312
27642412
28632413
29622513
30602614

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 6:45 AM to 6:33 AM, and sunset from 6:42 PM to 6:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:456:42
211.96:456:42
312.06:456:42
412.06:446:41
512.06:446:41
612.06:436:41
712.06:436:41
812.06:426:40
912.06:426:40
1012.06:426:40
1112.06:416:39
1212.06:416:39
1312.06:406:39
1412.06:406:39
1512.06:396:38
1612.06:396:38
1712.06:386:38
1812.06:386:37
1912.06:376:37
2012.06:376:37
2112.06:376:36
2212.06:366:36
2312.06:366:36
2412.06:356:36
2512.06:356:35
2612.06:346:35
2712.06:346:35
2812.06:346:35
2912.06:336:34
3012.06:336:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.39 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 5.52 kWh/m² to a high of 6.39 kWh/m² in February across the year — September's 6.39 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.2Intense
86.2Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
Planning a trip in September

Hazard calendar for Bariadi

In seasonPeak

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

Bariadi's rainy season runs November–April, 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 Bariadi?

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

5.1
Sightseeing
5th-best month of the year
7.4
Beach & pool
4th-best month of the year

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

What to pack for Bariadi in September

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

In September, Bariadi sees daytime highs around 31°C and nights near 19°C. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Bariadi 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 Bariadi 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
Jan15Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Very high
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec12Extreme

Air quality in Bariadi 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 Bariadi is worst in January — around 18 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (May, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodModerateJan 2018 µg/m³May 1610 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb17Moderate
Mar15Moderate
Apr12Good
May10Good
Jun13Moderate
Jul13Moderate
Aug12Moderate
Sep12Good
Oct11Good
Nov12Good
Dec14Moderate
Location & terrain

Where is Bariadi?

Bariadi sits at 2.8°S, 34.0°E, 1,282 m above sea level, in Tanzania. The nearest listed city is Maswa, 13 km away.

Topography around Bariadi

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

Within 3 km, the terrain around Bariadi has only modest variations in elevation — a maximum elevation change of 54 m around an average of 1,287 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 187 m; within 80 km, large variations in elevation — a maximum elevation change of 883 m.

The land around Bariadi is covered by cropland (57%) within 3 km, cropland (86%) within 16 km, and cropland (60%) and grassland (27%) within 80 km.

3 km
54 m
16 km
187 m
80 km
883 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Maswa 13 km · Nyakabindi 19 km · Kisesa 37 km · Shanwa 47 km · Nyalikungu 48 km · Malampaka 62 km · Somanda 63 km · Magu 64 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 Bariadi (-2.8°, 33.9833°, elevation 1,282 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).