Gisenyi weather in September

In September, Gisenyi sees average daytime highs of 21°C and overnight lows near 17°C, with 173 mm of rain across 22.9 wet days and about 12 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 7% of the time in September, and the air most often feels comfortable.

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 Gisenyi's 5th-clearest and 4th-windiest month. For the whole year in context, see Gisenyi's year-round climate.

Daytime high: 21°; 5th warmest
Overnight low: 17°; 8th coldest
Rainfall: 173 mm; 22.9 wet days
Daylight: 12 hours; 5:58 AM – 5:57 PM
Cloud cover: 76%; 5th clearest
Wind: 7 km/h; 4th windiest
Solar energy: 5.05 kWh/m²
Travel score: 4.3; out of 10

Gisenyi is city in Rubavu district, Western Province, Rwanda.

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

← August Gisenyi 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 21°C through the month.

A typical September day in Gisenyi reaches about 21°C in the afternoon and slips back to 17°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 21°C. Set against its neighbours, September runs on par with August and on par with 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)	20	20	20	20	20	20	20	20	20	20	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21
Avg low (°C)	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17

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

Gisenyi weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	21° / 17°	231	26.2	12.1	3.9
Feb	21° / 17°	221	23.7	12.1	3.9
Mar	21° / 17°	335	29.4	12	3.5
Apr	21° / 17°	257	27	12	3.6
May	21° / 18°	155	21.8	11.9	4.6
Jun	20° / 17°	78	14.2	11.9	5.6
Jul	20° / 17°	31	7.9	11.9	6.6
Aug	20° / 17°	72	13.5	11.9	5.7
Sep	21° / 17°	173	22.9	12	4.3
Oct	20° / 17°	331	28.9	12	3.5
Nov	20° / 17°	372	29.3	12.1	3.3
Dec	20° / 17°	319	29.2	12.1	3.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 78%.

	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 (%)	30	30	29	29	28	28	27	26	26	26	24	24	24	23	22	21	21	20	20	19	19	19	18	18	18	17	17	16	15	15
Cloudier (%)	70	70	71	71	72	72	73	74	74	74	76	76	76	77	78	79	79	80	80	81	81	81	82	82	82	83	83	84	85	85

	Clearer (%)	Cloudier (%)
1	30	70
2	30	70
3	29	71
4	29	71
5	28	72
6	28	72
7	27	73
8	26	74
9	26	74
10	26	74
11	24	76
12	24	76
13	24	76
14	23	77
15	22	78
16	21	79
17	21	79
18	20	80
19	20	80
20	19	81
21	19	81
22	19	81
23	18	82
24	18	82
25	18	82
26	17	83
27	17	83
28	16	84
29	15	85
30	15	85

Chance of precipitation in September

Any precipitation

Gisenyi gets around 173 mm of rain over 22.9 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 76% and peaks near 86% 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 (%)	59	61	63	65	67	69	71	72	74	75	76	77	77	78	78	78	78	78	79	79	79	80	80	81	82	83	83	84	85	86

	Rain chance (%)
1	59
2	61
3	63
4	65
5	67
6	69
7	71
8	72
9	74
10	75
11	76
12	77
13	77
14	78
15	78
16	78
17	78
18	78
19	79
20	79
21	79
22	80
23	80
24	81
25	82
26	83
27	83
28	84
29	85
30	86

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 83% 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 (%)	20	18	17	15	14	13	12	11	10	10	9	9	8	8	8	8	8	8	8	7	7	7	6	6	6	5	5	4	4	4
Comfortable (%)	78	80	81	82	83	84	84	85	85	85	85	84	85	84	84	83	83	83	83	83	83	83	84	84	83	84	84	85	84	84
Humid (%)	2	2	2	3	3	3	4	4	5	5	6	7	7	8	8	9	9	9	9	10	10	10	10	10	11	11	11	11	12	12

	Dry (%)	Comfortable (%)	Humid (%)
1	20	78	2
2	18	80	2
3	17	81	2
4	15	82	3
5	14	83	3
6	13	84	3
7	12	84	4
8	11	85	4
9	10	85	5
10	10	85	5
11	9	85	6
12	9	84	7
13	8	85	7
14	8	84	8
15	8	84	8
16	8	83	9
17	8	83	9
18	8	83	9
19	8	83	9
20	7	83	10
21	7	83	10
22	7	83	10
23	6	84	10
24	6	84	10
25	6	83	11
26	5	84	11
27	5	84	11
28	4	85	11
29	4	84	12
30	4	84	12

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 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)	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	6	6	6
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	7	calm
2	7	calm
3	7	calm
4	7	calm
5	7	calm
6	7	calm
7	7	calm
8	7	calm
9	7	calm
10	7	calm
11	7	calm
12	7	calm
13	7	calm
14	7	calm
15	7	calm
16	7	calm
17	7	calm
18	7	calm
19	7	calm
20	7	calm
21	7	calm
22	7	calm
23	7	calm
24	7	calm
25	7	calm
26	7	calm
27	7	calm
28	6	calm
29	6	calm
30	6	calm

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 6:04 AM to 5:52 AM, and sunset from 6:02 PM to 5:53 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)	12.0	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	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
Sunrise (AM)	6:04	6:03	6:03	6:03	6:02	6:02	6:01	6:01	6:00	6:00	6:00	5:59	5:59	5:58	5:58	5:58	5:57	5:57	5:56	5:56	5:55	5:55	5:55	5:54	5:54	5:53	5:53	5:53	5:52	5:52
Sunset (PM)	6:02	6:01	6:01	6:01	6:01	6:00	6:00	6:00	5:59	5:59	5:59	5:58	5:58	5:58	5:57	5:57	5:57	5:56	5:56	5:56	5:55	5:55	5:55	5:54	5:54	5:54	5:54	5:53	5:53	5:53

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.0	6:04	6:02
2	12.0	6:03	6:01
3	12.0	6:03	6:01
4	12.0	6:03	6:01
5	12.0	6:02	6:01
6	12.0	6:02	6:00
7	12.0	6:01	6:00
8	12.0	6:01	6:00
9	12.0	6:00	5:59
10	12.0	6:00	5:59
11	12.0	6:00	5:59
12	12.0	5:59	5:58
13	12.0	5:59	5:58
14	12.0	5:58	5:58
15	12.0	5:58	5:57
16	12.0	5:58	5:57
17	12.0	5:57	5:57
18	12.0	5:57	5:56
19	12.0	5:56	5:56
20	12.0	5:56	5:56
21	12.0	5:55	5:55
22	12.0	5:55	5:55
23	12.0	5:55	5:55
24	12.0	5:54	5:54
25	12.0	5:54	5:54
26	12.0	5:53	5:54
27	12.0	5:53	5:54
28	12.0	5:53	5:53
29	12.0	5:52	5:53
30	12.0	5:52	5:53

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.05 kWh/m².

For context, solar energy here swings from a low near 4.5 kWh/m² to a high of 5.08 kWh/m² in August across the year — September's 5.05 kWh/m² sits near the top of that range.

	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)	5.1	5.1	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.0	5.0	5.0	5.0	5.0	4.9
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	5.1	Bright
2	5.1	Bright
3	5.0	Bright
4	5.0	Bright
5	5.0	Bright
6	5.0	Bright
7	5.0	Bright
8	5.0	Bright
9	5.0	Bright
10	5.0	Bright
11	5.0	Bright
12	5.0	Bright
13	5.0	Bright
14	5.1	Bright
15	5.1	Bright
16	5.1	Bright
17	5.1	Bright
18	5.1	Bright
19	5.1	Bright
20	5.1	Bright
21	5.1	Bright
22	5.1	Bright
23	5.1	Bright
24	5.1	Bright
25	5.0	Bright
26	5.0	Bright
27	5.0	Bright
28	5.0	Bright
29	5.0	Bright
30	4.9	Bright

Planning a trip in September

Is September a good time to visit Gisenyi?

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

4.3

Sightseeing

5th-best month of the year

2.5

Beach & pool

5th-best month of the year

September is a reasonable time to visit Gisenyi for sightseeing.

What to pack for Gisenyi in September

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

In September, Gisenyi sees daytime highs around 21°C and nights near 17°C. Pack rain gear. Worth having: sun protection. About 23 days see rain.

rain gearsun protection

UV index in Gisenyi 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 Gisenyi peaks around March 21 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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)	11	14	16	16	12	10	10	10	14	13	12	10
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	11	Extreme
Feb	14	Extreme
Mar	16	Extreme
Apr	16	Extreme
May	12	Extreme
Jun	10	Extreme
Jul	10	Extreme
Aug	10	Extreme
Sep	14	Extreme
Oct	13	Extreme
Nov	12	Extreme
Dec	10	Extreme

Air quality in Gisenyi 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 Gisenyi is worst in July — around 106 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	92	96	82	77	80	100	106	100	89	82	83	88
Level	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy

	PM2.5 (µg/m³)	Level
Jan	92	Unhealthy
Feb	96	Unhealthy
Mar	82	Unhealthy
Apr	77	Unhealthy
May	80	Unhealthy
Jun	100	Unhealthy
Jul	106	Unhealthy
Aug	100	Unhealthy
Sep	89	Unhealthy
Oct	82	Unhealthy
Nov	83	Unhealthy
Dec	88	Unhealthy

Location & terrain

Where is Gisenyi?

Gisenyi sits at 1.7°S, 29.3°E, 1,461 m above sea level, in Rwanda. The nearest listed city is Goma, 4.0 km away.

Topography around Gisenyi

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

Within 3 km, the terrain around Gisenyi has significant variations in elevation — a maximum elevation change of 377 m around an average of 1,524 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,450 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,494 m.

The land around Gisenyi is covered by water (37%) and artificial surfaces (32%) within 3 km, water (37%) and trees (22%) within 16 km, and trees (39%) and grassland (25%) within 80 km.

3 km

377 m

water 37%

16 km

1,450 m

water 37%

80 km

3,494 m

trees 39%

treesshrubsgrasslandcroplandartificial surfaceswater

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

September weather nearby: Goma 4.0 km · Kora 23 km · Sake 28 km · Mukamira 29 km · Busogo 36 km · Mukingo 38 km · Kibuye 41 km · Ngororero 45 km

Rwanda travel facts

Travel advisory: Level 3; Reconsider Travel
Power plugs: Type C / E / G; 230 V · 50 Hz
Prices: ≈ 27% of US; price level, 2025
GDP per capita: $1,124; 2025
Happiness: 3.3 / 10; World Happiness, 2021
Homicide rate: 3.6; per 100k, 2020
Road deaths: 29.4; per 100k/yr, 2019
Income group: Low; World Bank
English: Very low; EF EPI 417
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 Gisenyi (-1.7028°, 29.2564°, elevation 1,461 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	20	17
2	20	17
3	20	17
4	20	17
5	20	17
6	20	17
7	20	17
8	20	17
9	20	17
10	20	17
11	21	17
12	21	17
13	21	17
14	21	17
15	21	17
16	21	17
17	21	17
18	21	17
19	21	17
20	21	17
21	21	17
22	21	17
23	21	17
24	21	17
25	21	17
26	21	17
27	21	17
28	21	17
29	21	17
30	21	17

	Clearer (%)	Cloudier (%)
1	30	70
2	30	70
3	29	71
4	29	71
5	28	72
6	28	72
7	27	73
8	26	74
9	26	74
10	26	74
11	24	76
12	24	76
13	24	76
14	23	77
15	22	78
16	21	79
17	21	79
18	20	80
19	20	80
20	19	81
21	19	81
22	19	81
23	18	82
24	18	82
25	18	82
26	17	83
27	17	83
28	16	84
29	15	85
30	15	85

	Rain chance (%)
1	59
2	61
3	63
4	65
5	67
6	69
7	71
8	72
9	74
10	75
11	76
12	77
13	77
14	78
15	78
16	78
17	78
18	78
19	79
20	79
21	79
22	80
23	80
24	81
25	82
26	83
27	83
28	84
29	85
30	86

	Dry (%)	Comfortable (%)	Humid (%)
1	20	78	2
2	18	80	2
3	17	81	2
4	15	82	3
5	14	83	3
6	13	84	3
7	12	84	4
8	11	85	4
9	10	85	5
10	10	85	5
11	9	85	6
12	9	84	7
13	8	85	7
14	8	84	8
15	8	84	8
16	8	83	9
17	8	83	9
18	8	83	9
19	8	83	9
20	7	83	10
21	7	83	10
22	7	83	10
23	6	84	10
24	6	84	10
25	6	83	11
26	5	84	11
27	5	84	11
28	4	85	11
29	4	84	12
30	4	84	12

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

	Clearer (%)	Cloudier (%)
1	30	70
2	30	70
3	29	71
4	29	71
5	28	72
6	28	72
7	27	73
8	26	74
9	26	74
10	26	74
11	24	76
12	24	76
13	24	76
14	23	77
15	22	78
16	21	79
17	21	79
18	20	80
19	20	80
20	19	81
21	19	81
22	19	81
23	18	82
24	18	82
25	18	82
26	17	83
27	17	83
28	16	84
29	15	85
30	15	85

	Rain chance (%)
1	59
2	61
3	63
4	65
5	67
6	69
7	71
8	72
9	74
10	75
11	76
12	77
13	77
14	78
15	78
16	78
17	78
18	78
19	79
20	79
21	79
22	80
23	80
24	81
25	82
26	83
27	83
28	84
29	85
30	86

	Dry (%)	Comfortable (%)	Humid (%)
1	20	78	2
2	18	80	2
3	17	81	2
4	15	82	3
5	14	83	3
6	13	84	3
7	12	84	4
8	11	85	4
9	10	85	5
10	10	85	5
11	9	85	6
12	9	84	7
13	8	85	7
14	8	84	8
15	8	84	8
16	8	83	9
17	8	83	9
18	8	83	9
19	8	83	9
20	7	83	10
21	7	83	10
22	7	83	10
23	6	84	10
24	6	84	10
25	6	83	11
26	5	84	11
27	5	84	11
28	4	85	11
29	4	84	12
30	4	84	12

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

	Clearer (%)	Cloudier (%)
1	30	70
2	30	70
3	29	71
4	29	71
5	28	72
6	28	72
7	27	73
8	26	74
9	26	74
10	26	74
11	24	76
12	24	76
13	24	76
14	23	77
15	22	78
16	21	79
17	21	79
18	20	80
19	20	80
20	19	81
21	19	81
22	19	81
23	18	82
24	18	82
25	18	82
26	17	83
27	17	83
28	16	84
29	15	85
30	15	85

	Rain chance (%)
1	59
2	61
3	63
4	65
5	67
6	69
7	71
8	72
9	74
10	75
11	76
12	77
13	77
14	78
15	78
16	78
17	78
18	78
19	79
20	79
21	79
22	80
23	80
24	81
25	82
26	83
27	83
28	84
29	85
30	86

	Dry (%)	Comfortable (%)	Humid (%)
1	20	78	2
2	18	80	2
3	17	81	2
4	15	82	3
5	14	83	3
6	13	84	3
7	12	84	4
8	11	85	4
9	10	85	5
10	10	85	5
11	9	85	6
12	9	84	7
13	8	85	7
14	8	84	8
15	8	84	8
16	8	83	9
17	8	83	9
18	8	83	9
19	8	83	9
20	7	83	10
21	7	83	10
22	7	83	10
23	6	84	10
24	6	84	10
25	6	83	11
26	5	84	11
27	5	84	11
28	4	85	11
29	4	84	12
30	4	84	12