Bonga weather in September

In September, Bonga sees average daytime highs of 22°C and overnight lows near 13°C, with 312 mm of rain across 28.7 wet days and about 12 hours of daylight. It is the 9th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 1% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 12 h 06 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Bonga's 6th-clearest and 1st-windiest month. For the whole year in context, see Bonga's year-round climate.

Daytime high: 22°; 9th warmest
Overnight low: 13°; 6th coldest
Rainfall: 312 mm; 28.7 wet days
Daylight: 12 hours; 6:28 AM – 6:31 PM
Cloud cover: 72%; 6th clearest
Wind: 4 km/h; 1st windiest
Solar energy: 5.18 kWh/m²
Travel score: 3.7; out of 10

Bonga is town in Ethiopia.

Density: 4,088/km²; people per km²

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

← August Bonga year-round climate October →Best places to visit in September

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 22°C through the month.

A typical September day in Bonga reaches about 22°C in the afternoon and slips back to 13°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 24°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	23	23	23	23	23	23	23	23	23	23	23	23	23	23
Avg low (°C)	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13

	Avg high (°C)	Avg low (°C)
1	22	13
2	22	13
3	22	13
4	22	13
5	22	13
6	22	13
7	22	13
8	22	13
9	22	13
10	22	13
11	22	13
12	22	13
13	22	13
14	22	13
15	22	13
16	22	13
17	23	13
18	23	13
19	23	13
20	23	13
21	23	13
22	23	13
23	23	13
24	23	13
25	23	13
26	23	13
27	23	13
28	23	13
29	23	13
30	23	13

Bonga weather by month

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

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	25° / 12°	104	15.4	11.6	6.1
Feb	26° / 13°	116	16.2	11.8	5.6
Mar	25° / 13°	255	24.9	12	4.5
Apr	24° / 14°	388	28.3	12.2	3.8
May	23° / 13°	392	30.7	12.3	3.6
Jun	22° / 13°	210	28.7	12.4	3.7
Jul	21° / 13°	211	27.6	12.4	3.8
Aug	22° / 13°	217	27.2	12.2	3.9
Sep	22° / 13°	312	28.7	12	3.7
Oct	23° / 12°	411	29.6	11.8	3.8
Nov	24° / 12°	222	24.2	11.7	4.6
Dec	24° / 11°	127	18.3	11.6	5.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% 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 81%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	18	18	18	19	19	20	20	20	21	21	21	22	22	22	21	21	21	20	20	19	19	18	18	17	17	17	17	16	16	16
Cloudier (%)	82	82	82	81	81	80	80	80	79	79	79	78	78	78	79	79	79	80	80	81	81	82	82	83	83	83	83	84	84	84

	Clearer (%)	Cloudier (%)
1	18	82
2	18	82
3	18	82
4	19	81
5	19	81
6	20	80
7	20	80
8	20	80
9	21	79
10	21	79
11	21	79
12	22	78
13	22	78
14	22	78
15	21	79
16	21	79
17	21	79
18	20	80
19	20	80
20	19	81
21	19	81
22	18	82
23	18	82
24	17	83
25	17	83
26	17	83
27	17	83
28	16	84
29	16	84
30	16	84

Chance of precipitation in September

Any precipitation

Bonga gets around 312 mm of rain over 28.7 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 95% and peaks near 99% on the wettest days. The odds climb toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	91	91	91	92	92	92	92	93	93	93	93	94	94	94	95	95	96	96	97	97	98	98	98	98	99	99	99	99	99	99

	Rain chance (%)
1	91
2	91
3	91
4	92
5	92
6	92
7	92
8	93
9	93
10	93
11	93
12	94
13	94
14	94
15	95
16	95
17	96
18	96
19	97
20	97
21	98
22	98
23	98
24	98
25	99
26	99
27	99
28	99
29	99
30	99

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 94% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	6	6	5	5	5	5	4	4	4	3	3	3	2	2	2	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0
Comfortable (%)	93	93	94	94	94	94	95	94	94	95	95	95	96	96	95	96	96	95	95	96	95	95	95	95	94	94	94	93	93	93
Humid (%)	1	1	1	1	1	1	1	2	2	2	2	2	2	2	3	3	3	4	4	4	5	5	5	5	6	6	6	7	7	7

	Dry (%)	Comfortable (%)	Humid (%)
1	6	93	1
2	6	93	1
3	5	94	1
4	5	94	1
5	5	94	1
6	5	94	1
7	4	95	1
8	4	94	2
9	4	94	2
10	3	95	2
11	3	95	2
12	3	95	2
13	2	96	2
14	2	96	2
15	2	95	3
16	1	96	3
17	1	96	3
18	1	95	4
19	1	95	4
20	0	96	4
21	0	95	5
22	0	95	5
23	0	95	5
24	0	95	5
25	0	94	6
26	0	94	6
27	0	94	6
28	0	93	7
29	0	93	7
30	0	93	7

Wind in September

Winds average 4 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	4	calm
2	4	calm
3	4	calm
4	4	calm
5	4	calm
6	4	calm
7	4	calm
8	4	calm
9	4	calm
10	4	calm
11	4	calm
12	4	calm
13	4	calm
14	4	calm
15	4	calm
16	4	calm
17	4	calm
18	4	calm
19	4	calm
20	4	calm
21	4	calm
22	4	calm
23	4	calm
24	4	calm
25	4	calm
26	4	calm
27	4	calm
28	4	calm
29	4	calm
30	4	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 06 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over September. Sunrise moves from 6:31 AM to 6:26 AM, and sunset from 6:39 PM to 6:23 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	11.9
Sunrise (AM)	6:31	6:30	6:30	6:30	6:30	6:30	6:30	6:29	6:29	6:29	6:29	6:29	6:29	6:29	6:28	6:28	6:28	6:28	6:28	6:28	6:27	6:27	6:27	6:27	6:27	6:27	6:26	6:26	6:26	6:26
Sunset (PM)	6:39	6:38	6:38	6:37	6:37	6:36	6:36	6:35	6:35	6:34	6:33	6:33	6:32	6:32	6:31	6:31	6:30	6:29	6:29	6:28	6:28	6:27	6:27	6:26	6:25	6:25	6:24	6:24	6:23	6:23

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.1	6:31	6:39
2	12.1	6:30	6:38
3	12.1	6:30	6:38
4	12.1	6:30	6:37
5	12.1	6:30	6:37
6	12.1	6:30	6:36
7	12.1	6:30	6:36
8	12.1	6:29	6:35
9	12.1	6:29	6:35
10	12.1	6:29	6:34
11	12.1	6:29	6:33
12	12.1	6:29	6:33
13	12.1	6:29	6:32
14	12.1	6:29	6:32
15	12.0	6:28	6:31
16	12.0	6:28	6:31
17	12.0	6:28	6:30
18	12.0	6:28	6:29
19	12.0	6:28	6:29
20	12.0	6:28	6:28
21	12.0	6:27	6:28
22	12.0	6:27	6:27
23	12.0	6:27	6:27
24	12.0	6:27	6:26
25	12.0	6:27	6:25
26	12.0	6:27	6:25
27	12.0	6:26	6:24
28	12.0	6:26	6:24
29	12.0	6:26	6:23
30	11.9	6:26	6:23

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.18 kWh/m².

For context, solar energy here swings from a low near 4.36 kWh/m² to a high of 5.73 kWh/m² in March across the year — September's 5.18 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	5.0	5.0	5.0	5.0	5.1	5.1	5.1	5.1	5.1	5.1	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.0	Bright
2	5.0	Bright
3	5.0	Bright
4	5.0	Bright
5	5.1	Bright
6	5.1	Bright
7	5.1	Bright
8	5.1	Bright
9	5.1	Bright
10	5.1	Bright
11	5.2	Bright
12	5.2	Bright
13	5.2	Bright
14	5.2	Bright
15	5.2	Bright
16	5.2	Bright
17	5.2	Bright
18	5.2	Bright
19	5.2	Bright
20	5.2	Bright
21	5.2	Bright
22	5.2	Bright
23	5.2	Bright
24	5.2	Bright
25	5.2	Bright
26	5.2	Bright
27	5.2	Bright
28	5.2	Bright
29	5.2	Bright
30	5.2	Bright

Planning a trip in September

Is September a good time to visit Bonga?

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

3.7

Sightseeing

10th-best month of the year

2.7

Beach & pool

9th-best month of the year

September is a weaker month for outdoor sightseeing in Bonga.

What to pack for Bonga in September

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

In September, Bonga sees daytime highs around 22°C and nights near 13°C. Pack rain gear. Worth having: light clothes and sun protection. About 29 days see rain.

rain gearlight clothessun protection

UV index in Bonga 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 Bonga peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 10 (extreme).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	13	14	15	13	12	11	12	14	13	13	11	10
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	13	Extreme
Feb	14	Extreme
Mar	15	Extreme
Apr	13	Extreme
May	12	Extreme
Jun	11	Extreme
Jul	12	Extreme
Aug	14	Extreme
Sep	13	Extreme
Oct	13	Extreme
Nov	11	Extreme
Dec	10	Extreme

Air quality in Bonga 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 Bonga is worst in February — around 44 µg/m³ PM2.5 (poor), about 1.8× the cleanest month (August, 25 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	44	44	34	30	25	30	28	25	25	28	32	35
Level	Poor	Poor	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Poor

	PM2.5 (µg/m³)	Level
Jan	44	Poor
Feb	44	Poor
Mar	34	Moderate
Apr	30	Moderate
May	25	Moderate
Jun	30	Moderate
Jul	28	Moderate
Aug	25	Moderate
Sep	25	Moderate
Oct	28	Moderate
Nov	32	Moderate
Dec	35	Poor

Location & terrain

Where is Bonga?

Bonga sits at 7.3°N, 36.2°E, 1,673 m above sea level, in Ethiopia. The nearest listed city is Wacha, 49 km away.

Topography around Bonga

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

Within 3 km, the terrain around Bonga has significant variations in elevation — a maximum elevation change of 319 m around an average of 1,684 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,184 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,802 m.

The land around Bonga is covered by trees (78%) within 3 km, trees (64%) within 16 km, and trees (59%) within 80 km.

3 km

319 m

trees 78%

16 km

1,184 m

trees 64%

80 km

2,802 m

trees 59%

treesshrubsgrasslandcroplandartificial surfaceswetland

← August Bonga year-round climate October →Best places to visit in September

September weather nearby: Wacha 49 km · Āgaro 77 km · Jimma 78 km · Mīzan Teferī 79 km · Komtikas 84 km · Tēpī 88 km · Tarch’a Sodo 104 km · Waka 105 km

Ethiopia travel facts

Travel advisory: Level 3; Reconsider Travel
Power plugs: Type C / E / F / L; 220 V · 50 Hz
Prices: ≈ 37% of US; price level, 2025
GDP per capita: $933; 2025
Happiness: 4.0 / 10; World Happiness, 2025
Safe drinking water: 14%; of population, 2024
Homicide rate: 8.5; per 100k, 2012
Road deaths: 28.2; per 100k/yr, 2019
Income group: Low; World Bank
English: Low; EF EPI 499
Religion

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 Bonga (7.2889°, 36.2417°, elevation 1,673 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).

	Avg high (°C)	Avg low (°C)
1	22	13
2	22	13
3	22	13
4	22	13
5	22	13
6	22	13
7	22	13
8	22	13
9	22	13
10	22	13
11	22	13
12	22	13
13	22	13
14	22	13
15	22	13
16	22	13
17	23	13
18	23	13
19	23	13
20	23	13
21	23	13
22	23	13
23	23	13
24	23	13
25	23	13
26	23	13
27	23	13
28	23	13
29	23	13
30	23	13

	Clearer (%)	Cloudier (%)
1	18	82
2	18	82
3	18	82
4	19	81
5	19	81
6	20	80
7	20	80
8	20	80
9	21	79
10	21	79
11	21	79
12	22	78
13	22	78
14	22	78
15	21	79
16	21	79
17	21	79
18	20	80
19	20	80
20	19	81
21	19	81
22	18	82
23	18	82
24	17	83
25	17	83
26	17	83
27	17	83
28	16	84
29	16	84
30	16	84

	Rain chance (%)
1	91
2	91
3	91
4	92
5	92
6	92
7	92
8	93
9	93
10	93
11	93
12	94
13	94
14	94
15	95
16	95
17	96
18	96
19	97
20	97
21	98
22	98
23	98
24	98
25	99
26	99
27	99
28	99
29	99
30	99

	Dry (%)	Comfortable (%)	Humid (%)
1	6	93	1
2	6	93	1
3	5	94	1
4	5	94	1
5	5	94	1
6	5	94	1
7	4	95	1
8	4	94	2
9	4	94	2
10	3	95	2
11	3	95	2
12	3	95	2
13	2	96	2
14	2	96	2
15	2	95	3
16	1	96	3
17	1	96	3
18	1	95	4
19	1	95	4
20	0	96	4
21	0	95	5
22	0	95	5
23	0	95	5
24	0	95	5
25	0	94	6
26	0	94	6
27	0	94	6
28	0	93	7
29	0	93	7
30	0	93	7

	Avg high (°C)	Avg low (°C)
1	22	13
2	22	13
3	22	13
4	22	13
5	22	13
6	22	13
7	22	13
8	22	13
9	22	13
10	22	13
11	22	13
12	22	13
13	22	13
14	22	13
15	22	13
16	22	13
17	23	13
18	23	13
19	23	13
20	23	13
21	23	13
22	23	13
23	23	13
24	23	13
25	23	13
26	23	13
27	23	13
28	23	13
29	23	13
30	23	13

	Clearer (%)	Cloudier (%)
1	18	82
2	18	82
3	18	82
4	19	81
5	19	81
6	20	80
7	20	80
8	20	80
9	21	79
10	21	79
11	21	79
12	22	78
13	22	78
14	22	78
15	21	79
16	21	79
17	21	79
18	20	80
19	20	80
20	19	81
21	19	81
22	18	82
23	18	82
24	17	83
25	17	83
26	17	83
27	17	83
28	16	84
29	16	84
30	16	84

	Rain chance (%)
1	91
2	91
3	91
4	92
5	92
6	92
7	92
8	93
9	93
10	93
11	93
12	94
13	94
14	94
15	95
16	95
17	96
18	96
19	97
20	97
21	98
22	98
23	98
24	98
25	99
26	99
27	99
28	99
29	99
30	99

	Dry (%)	Comfortable (%)	Humid (%)
1	6	93	1
2	6	93	1
3	5	94	1
4	5	94	1
5	5	94	1
6	5	94	1
7	4	95	1
8	4	94	2
9	4	94	2
10	3	95	2
11	3	95	2
12	3	95	2
13	2	96	2
14	2	96	2
15	2	95	3
16	1	96	3
17	1	96	3
18	1	95	4
19	1	95	4
20	0	96	4
21	0	95	5
22	0	95	5
23	0	95	5
24	0	95	5
25	0	94	6
26	0	94	6
27	0	94	6
28	0	93	7
29	0	93	7
30	0	93	7

	Avg high (°C)	Avg low (°C)
1	22	13
2	22	13
3	22	13
4	22	13
5	22	13
6	22	13
7	22	13
8	22	13
9	22	13
10	22	13
11	22	13
12	22	13
13	22	13
14	22	13
15	22	13
16	22	13
17	23	13
18	23	13
19	23	13
20	23	13
21	23	13
22	23	13
23	23	13
24	23	13
25	23	13
26	23	13
27	23	13
28	23	13
29	23	13
30	23	13

	Clearer (%)	Cloudier (%)
1	18	82
2	18	82
3	18	82
4	19	81
5	19	81
6	20	80
7	20	80
8	20	80
9	21	79
10	21	79
11	21	79
12	22	78
13	22	78
14	22	78
15	21	79
16	21	79
17	21	79
18	20	80
19	20	80
20	19	81
21	19	81
22	18	82
23	18	82
24	17	83
25	17	83
26	17	83
27	17	83
28	16	84
29	16	84
30	16	84

	Rain chance (%)
1	91
2	91
3	91
4	92
5	92
6	92
7	92
8	93
9	93
10	93
11	93
12	94
13	94
14	94
15	95
16	95
17	96
18	96
19	97
20	97
21	98
22	98
23	98
24	98
25	99
26	99
27	99
28	99
29	99
30	99

	Dry (%)	Comfortable (%)	Humid (%)
1	6	93	1
2	6	93	1
3	5	94	1
4	5	94	1
5	5	94	1
6	5	94	1
7	4	95	1
8	4	94	2
9	4	94	2
10	3	95	2
11	3	95	2
12	3	95	2
13	2	96	2
14	2	96	2
15	2	95	3
16	1	96	3
17	1	96	3
18	1	95	4
19	1	95	4
20	0	96	4
21	0	95	5
22	0	95	5
23	0	95	5
24	0	95	5
25	0	94	6
26	0	94	6
27	0	94	6
28	0	93	7
29	0	93	7
30	0	93	7