Ruangwa weather in September

In September, Ruangwa sees average daytime highs of 30°C and overnight lows near 18°C, with 8 mm of rain across 2.3 wet days and about 11.9 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 36% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Ruangwa's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Ruangwa's year-round climate.

Daytime high
30°
4th warmest
Overnight low
18°
4th coldest
Rainfall
8 mm
2.3 wet days
Daylight
11 h 54 min
6:20 AM – 6:17 PM
Cloud cover
46%
2nd clearest
Wind
10 km/h
2nd windiest
Solar energy
5.8 kWh/m²
Travel score
6.0
out of 10

Ruangwa is settlement 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 30°C through the month.

A typical September day in Ruangwa reaches about 30°C in the afternoon and slips back to 18°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13018
23018
33018
43018
53018
63018
73018
83018
93018
103018
113018
123018
133018
143018
153018
163018
173018
183018
193018
203019
213019
223019
233019
243019
253019
263019
273019
283019
293019
303019

How September really feels in Ruangwa

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Ruangwa weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°15820.312.53.7
Feb30° / 22°15219.112.33.7
Mar29° / 22°22925.912.13.4
Apr29° / 21°14618.711.84.4
May29° / 19°305.711.56.3
Jun29° / 18°5111.47.1
Jul28° / 17°30.511.57.1
Aug29° / 18°51.311.76.6
Sep30° / 18°82.311.96.0
Oct31° / 20°215.412.25.2
Nov31° / 21°6111.512.54.3
Dec31° / 22°14621.212.63.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 44% of September, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17426
27426
37426
47426
57525
67525
77624
87624
97723
107723
117822
127822
137921
148020
158020
168218
178317
188317
198416
208416
218416
228416
238416
248515
258515
268515
278416
288416
298416
308317

Chance of precipitation in September

Any precipitation

Ruangwa gets around 8 mm of rain over 2.3 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 7% and peaks near 13% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
14
24
34
44
55
65
75
85
95
106
116
126
136
146
157
167
177
187
198
208
219
229
2310
2410
2510
2611
2711
2812
2912
3013

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 69% of days. Sticky, muggy-or-worse air turns up on roughly 10% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1338563
2237583
3236584
4234604
5233614
6231625
7230635
8228655
9227665
10126685
11125686
12123706
13122716
14121717
15120727
16118747
17117748
18116749
19115759
201147510
210137611
220127513
230117514
240107515
25097417
26087418
27087220
28077221
29067123
30067024

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 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over September. Sunrise moves from 6:30 AM to 6:11 AM, and sunset from 6:18 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:306:18
211.86:296:18
311.86:296:18
411.86:286:18
511.86:276:18
611.96:276:18
711.96:266:18
811.96:256:18
911.96:256:18
1011.96:246:17
1111.96:246:17
1211.96:236:17
1311.96:226:17
1411.96:226:17
1511.96:216:17
1611.96:206:17
1712.06:206:17
1812.06:196:17
1912.06:186:17
2012.06:186:17
2112.06:176:17
2212.06:166:16
2312.06:166:16
2412.06:156:16
2512.06:146:16
2612.06:146:16
2712.16:136:16
2812.16:126:16
2912.16:126:16
3012.16:116:16

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.8 kWh/m².

For context, solar energy here swings from a low near 4.93 kWh/m² to a high of 6.17 kWh/m² in October across the year — September's 5.8 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
296.0Bright
306.0Bright
Planning a trip in September

Hazard calendar for Ruangwa

In seasonPeak

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

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

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

Is September a good time to visit Ruangwa?

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

6.0
Sightseeing
5th-best month of the year
8.2
Beach & pool
4th-best month of the year

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

What to pack for Ruangwa in September

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

In September, Ruangwa sees daytime highs around 30°C and nights near 18°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Ruangwa in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ruangwa peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 11UV 15Jul 10UV 9
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr13Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug11Extreme
Sep12Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme

Air quality in Ruangwa 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 Ruangwa is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (May, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodJul 2318 µg/m³May 139 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb12Moderate
Mar10Good
Apr10Good
May8Good
Jun12Good
Jul18Moderate
Aug17Moderate
Sep11Good
Oct13Moderate
Nov10Good
Dec9Good
Location & terrain

Where is Ruangwa?

Ruangwa sits at 10.1°S, 38.9°E, 348 m above sea level, in Tanzania. The nearest listed city is Nachingwea, 39 km away.

MasasiLindiLuchinguNangomba

Topography around Ruangwa

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

Within 3 km, the terrain around Ruangwa has only modest variations in elevation — a maximum elevation change of 199 m around an average of 342 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 630 m; within 80 km, large variations in elevation — a maximum elevation change of 939 m.

The land around Ruangwa is covered by trees (49%) and shrubs (22%) within 3 km, trees (62%) within 16 km, and trees (50%), grassland (24%) and shrubs (20%) within 80 km.

3 km
199 m
16 km
630 m
80 km
939 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Nachingwea 39 km · Nanganga 42 km · Nyangao 48 km · Lukuledi 57 km · Masasi 74 km · Lindi 86 km · Luchingu 102 km · Nangomba 104 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 Ruangwa (-10.0667°, 38.9333°, elevation 348 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).