Rulenge weather in September

In September, Rulenge sees average daytime highs of 28°C and overnight lows near 17°C, with 41 mm of rain across 8.7 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 28°C through the month. The sky is clear or mostly clear about 17% of the time in September, and the air most often feels comfortable.

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

Daytime high
28°
1st warmest
Overnight low
17°
12th coldest
Rainfall
41 mm
8.7 wet days
Daylight
12 hours
6:52 AM – 6:51 PM
Cloud cover
64%
3rd clearest
Wind
7 km/h
4th windiest
Solar energy
5.88 kWh/m²
Travel score
6.0
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 Rulenge reaches about 28°C in the afternoon and slips back to 17°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 26°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°35°151015202530
Avg high (°C)Avg low (°C)
12817
22817
32817
42817
52817
62817
72817
82817
92817
102817
112817
122817
132817
142817
152817
162817
172817
182817
192817
202817
212817
222817
232817
242817
252817
262817
272817
282817
292817
302817

Rulenge 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
Jan26° / 16°1191912.15.1
Feb27° / 16°981712.15.1
Mar26° / 16°13421.2124.8
Apr26° / 16°15822.211.94.5
May26° / 16°6110.511.96.4
Jun27° / 16°71.311.87.6
Jul27° / 16°30.511.97.7
Aug28° / 17°193.211.96.8
Sep28° / 17°418.7126.0
Oct27° / 17°10816.312.15.4
Nov26° / 16°17223.412.14.4
Dec26° / 16°15021.912.24.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% 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 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14159
24258
34258
44258
54258
64357
74357
84357
94357
104258
114258
124258
134258
144258
154258
164159
174159
184159
193961
203961
213862
223862
233763
243763
253664
263664
273664
283565
293565
303565

Chance of precipitation in September

Any precipitation

Rulenge gets around 41 mm of rain over 8.7 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 30% and peaks near 38% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
122
222
323
424
524
625
725
826
926
1027
1128
1228
1328
1429
1529
1629
1730
1830
1931
2031
2132
2233
2333
2434
2535
2635
2736
2837
2937
3038

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 43% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
1553312
2543412
3513613
4503713
5483913
6474013
7464114
8444214
9434214
10424315
11414415
12404416
13404416
14394416
15394417
16384417
17384418
18384418
19374419
20364419
21354520
22344521
23334522
24324622
25304723
26294724
27274824
28255025
29245026
30225226

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 6:59 AM to 6:46 AM, and sunset from 6:56 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:596:56
212.06:586:55
312.06:586:55
412.06:586:55
512.06:576:55
612.06:576:54
712.06:566:54
812.06:566:54
912.06:556:53
1012.06:556:53
1112.06:546:53
1212.06:546:53
1312.06:546:52
1412.06:536:52
1512.06:536:52
1612.06:526:51
1712.06:526:51
1812.06:516:51
1912.06:516:50
2012.06:506:50
2112.06:506:50
2212.06:506:50
2312.06:496:49
2412.06:496:49
2512.06:486:49
2612.06:486:48
2712.06:476:48
2812.06:476:48
2912.06:476:48
3012.06:466:47

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.88 kWh/m².

For context, solar energy here swings from a low near 5.16 kWh/m² to a high of 5.91 kWh/m² in February across the year — September's 5.88 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
206.0Bright
216.0Bright
226.0Bright
236.0Bright
246.0Bright
256.0Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in September

Hazard calendar for Rulenge

In seasonPeak

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

Rulenge's rainy season runs October–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 Rulenge?

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
6.8
Beach & pool
4th-best month of the year

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

What to pack for Rulenge in September

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

In September, Rulenge sees daytime highs around 28°C and nights near 17°C. Pack light clothes. Worth having: rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Rulenge 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 Rulenge peaks around March 14 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 14UV 16Jun 19UV 10
UV index (midday)Level
Jan12Extreme
Feb16Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug11Extreme
Sep14Extreme
Oct14Extreme
Nov13Extreme
Dec12Extreme

Air quality in Rulenge 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 Rulenge is worst in July — around 47 µg/m³ PM2.5 (poor), about 2.0× the cleanest month (April, 24 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1246 µg/m³Apr 1624 µg/m³
PM2.5 (µg/m³)Level
Jan34Moderate
Feb32Moderate
Mar27Moderate
Apr24Moderate
May27Moderate
Jun45Poor
Jul47Poor
Aug40Poor
Sep33Moderate
Oct27Moderate
Nov27Moderate
Dec29Moderate
Location & terrain

Where is Rulenge?

Rulenge sits at 2.7°S, 30.6°E, 1,422 m above sea level, in Tanzania. The nearest listed city is Kabanga, 20 km away.

Kakonko

Topography around Rulenge

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

Within 3 km, the terrain around Rulenge has only modest variations in elevation — a maximum elevation change of 194 m around an average of 1,424 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 399 m; within 80 km, large variations in elevation — a maximum elevation change of 911 m.

The land around Rulenge is covered by shrubs (30%), grassland (29%) and cropland (23%) within 3 km, grassland (38%), shrubs (26%) and cropland (26%) within 16 km, and grassland (30%), cropland (27%) and shrubs (20%) within 80 km.

3 km
194 m
16 km
399 m
80 km
911 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Kabanga 20 km · Bugarama 21 km · Ngara 23 km · Kirundo 61 km · Kibungo 63 km · Cendajuru 64 km · Karusi 67 km · Kakonko 73 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 Rulenge (-2.7175°, 30.6325°, elevation 1,422 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).