Garissa weather in September

In September, Garissa sees average daytime highs of 33°C and overnight lows near 23°C, with 5 mm of rain across 0.8 wet days and about 12 hours of daylight. It is the 9th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 30% of the time in September, and the air most often feels humid.

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 Garissa's 9th-clearest and 4th-windiest month. For the whole year in context, see Garissa's year-round climate.

Daytime high: 33°; 9th warmest
Overnight low: 23°; 3rd coldest
Rainfall: 5 mm; 0.8 wet days
Daylight: 12 hours; 6:16 AM – 6:16 PM
Cloud cover: 54%; 9th clearest
Wind: 21 km/h; 4th windiest
Solar energy: 5.56 kWh/m²
Travel score: 4.4; out of 10

Garissa is capital of Garissa County, Kenya.

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

← August Garissa 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 33°C through the month.

A typical September day in Garissa reaches about 33°C in the afternoon and slips back to 23°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 34°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)	32	32	32	32	32	32	32	32	32	32	32	33	33	33	33	33	33	33	33	33	33	33	33	33	33	33	33	33	33	33
Avg low (°C)	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	23	23	23	23	23

	Avg high (°C)	Avg low (°C)
1	32	22
2	32	22
3	32	22
4	32	22
5	32	22
6	32	22
7	32	22
8	32	22
9	32	22
10	32	22
11	32	22
12	33	23
13	33	23
14	33	23
15	33	23
16	33	23
17	33	23
18	33	23
19	33	23
20	33	23
21	33	23
22	33	23
23	33	23
24	33	23
25	33	23
26	33	23
27	33	23
28	33	23
29	33	23
30	33	23

How September really feels in Garissa

Once humidity and wind are folded in, September averages 30 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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Garissa weather by month

How September compares with the rest of the year at a glance. September is the 9th-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	35° / 24°	17	1.9	12	3.3
Feb	36° / 25°	4	0.9	12	2.7
Mar	36° / 26°	20	3.6	12	2.3
Apr	35° / 25°	36	7.9	12	2.7
May	33° / 24°	16	3.1	12	3.9
Jun	32° / 23°	2	0.4	12	4.6
Jul	31° / 22°	2	0.3	12	5.1
Aug	31° / 22°	2	0.2	12	5.0
Sep	33° / 23°	5	0.8	12	4.4
Oct	34° / 24°	16	3.6	12	3.6
Nov	33° / 24°	67	11.8	12	3.3
Dec	33° / 24°	42	7.6	12	3.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 28% of September, with mostly cloudy or overcast conditions the remaining 42%. Skies tend to open up as the month goes on.

	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 (%)	44	45	45	47	48	48	49	51	52	54	55	57	58	59	60	61	61	62	63	63	64	64	64	65	65	66	66	67	69	69
Cloudier (%)	56	55	55	53	52	52	51	49	48	46	45	43	42	41	40	39	39	38	37	37	36	36	36	35	35	34	34	33	31	31

	Clearer (%)	Cloudier (%)
1	44	56
2	45	55
3	45	55
4	47	53
5	48	52
6	48	52
7	49	51
8	51	49
9	52	48
10	54	46
11	55	45
12	57	43
13	58	42
14	59	41
15	60	40
16	61	39
17	61	39
18	62	38
19	63	37
20	63	37
21	64	36
22	64	36
23	64	36
24	65	35
25	65	35
26	66	34
27	66	34
28	67	33
29	69	31
30	69	31

Chance of precipitation in September

Any precipitation

Garissa gets around 5 mm of rain over 0.8 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 3% and peaks near 5% on the wettest days.

	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 (%)	1	1	1	1	1	1	2	2	2	2	2	2	2	2	3	3	3	3	3	3	3	4	4	4	4	4	5	5	5	5

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

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 56% of days. Sticky, muggy-or-worse air turns up on roughly 43% of them.

	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
Comfortable (%)	2	2	2	2	2	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Humid (%)	71	70	69	69	68	67	67	66	65	64	63	62	60	59	58	56	55	54	53	51	50	49	47	45	44	42	40	39	37	35
Muggy (%)	27	28	29	29	30	31	32	33	34	35	36	37	39	40	41	43	44	45	46	48	49	50	51	53	54	56	57	58	60	61
Oppressive (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	2	2	2	3

	Comfortable (%)	Humid (%)	Muggy (%)	Oppressive (%)
1	2	71	27	0
2	2	70	28	0
3	2	69	29	0
4	2	69	29	0
5	2	68	30	0
6	2	67	31	0
7	1	67	32	0
8	1	66	33	0
9	1	65	34	0
10	1	64	35	0
11	1	63	36	0
12	1	62	37	0
13	1	60	39	0
14	1	59	40	0
15	1	58	41	0
16	1	56	43	0
17	1	55	44	0
18	1	54	45	0
19	1	53	46	0
20	1	51	48	0
21	1	50	49	0
22	1	49	50	0
23	1	47	51	1
24	1	45	53	1
25	1	44	54	1
26	1	42	56	1
27	1	40	57	2
28	1	39	58	2
29	1	37	60	2
30	1	35	61	3

Wind in September

Winds average 21 km/h in September.

Across September, daily wind ranges from about 20 km/h on the calmest days to 21 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)	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	20	20	20	20	20	20	20	20	20	20
Feels	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	light breeze	light breeze	light breeze

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

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 6:21 AM to 6:11 AM, and sunset from 6:21 PM to 6:11 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)	6:21	6:21	6:21	6:20	6:20	6:20	6:19	6:19	6:18	6:18	6:18	6:17	6:17	6:17	6:16	6:16	6:15	6:15	6:15	6:14	6:14	6:14	6:13	6:13	6:12	6:12	6:12	6:11	6:11	6:11
Sunset (PM)	6:21	6:21	6:20	6:20	6:20	6:19	6:19	6:19	6:18	6:18	6:17	6:17	6:17	6:16	6:16	6:16	6:15	6:15	6:15	6:14	6:14	6:14	6:13	6:13	6:12	6:12	6:12	6:11	6:11	6:11

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.0	6:21	6:21
2	12.0	6:21	6:21
3	12.0	6:21	6:20
4	12.0	6:20	6:20
5	12.0	6:20	6:20
6	12.0	6:20	6:19
7	12.0	6:19	6:19
8	12.0	6:19	6:19
9	12.0	6:18	6:18
10	12.0	6:18	6:18
11	12.0	6:18	6:17
12	12.0	6:17	6:17
13	12.0	6:17	6:17
14	12.0	6:17	6:16
15	12.0	6:16	6:16
16	12.0	6:16	6:16
17	12.0	6:15	6:15
18	12.0	6:15	6:15
19	12.0	6:15	6:15
20	12.0	6:14	6:14
21	12.0	6:14	6:14
22	12.0	6:14	6:14
23	12.0	6:13	6:13
24	12.0	6:13	6:13
25	12.0	6:12	6:12
26	12.0	6:12	6:12
27	12.0	6:12	6:12
28	12.0	6:11	6:11
29	12.0	6:11	6:11
30	12.0	6:11	6:11

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.56 kWh/m².

For context, solar energy here swings from a low near 4.69 kWh/m² to a high of 6.75 kWh/m² in February across the year — September's 5.56 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)	5.3	5.3	5.3	5.3	5.3	5.3	5.4	5.4	5.4	5.4	5.5	5.5	5.5	5.5	5.6	5.6	5.6	5.6	5.7	5.7	5.7	5.7	5.7	5.8	5.8	5.8	5.8	5.8	5.8	5.8
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	5.3	Bright
2	5.3	Bright
3	5.3	Bright
4	5.3	Bright
5	5.3	Bright
6	5.3	Bright
7	5.4	Bright
8	5.4	Bright
9	5.4	Bright
10	5.4	Bright
11	5.5	Bright
12	5.5	Bright
13	5.5	Bright
14	5.5	Bright
15	5.6	Bright
16	5.6	Bright
17	5.6	Bright
18	5.6	Bright
19	5.7	Bright
20	5.7	Bright
21	5.7	Bright
22	5.7	Bright
23	5.7	Bright
24	5.8	Bright
25	5.8	Bright
26	5.8	Bright
27	5.8	Bright
28	5.8	Bright
29	5.8	Bright
30	5.8	Bright

Planning a trip in September

Is September a good time to visit Garissa?

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

4.4

Sightseeing

4th-best month of the year

7.6

Beach & pool

3rd-best month of the year

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

What to pack for Garissa in September

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

In September, Garissa sees daytime highs around 33°C and nights near 23°C. Pack light clothes. Worth having: sun protection and a windbreaker.

light clothessun protectiona windbreaker

UV index in Garissa 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 Garissa peaks around March 24 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 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)	14	14	15	15	12	10	11	12	13	14	12	12
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

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

Location & terrain

Where is Garissa?

Garissa sits at 0.5°S, 39.6°E, 147 m above sea level, in Kenya. The nearest listed city is Hola, 122 km away.

Topography around Garissa

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

Within 3 km, the terrain around Garissa has only modest variations in elevation — a maximum elevation change of 45 m around an average of 151 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 135 m; within 80 km, significant variations in elevation — a maximum elevation change of 353 m.

The land around Garissa is covered by artificial surfaces (48%) within 3 km, shrubs (60%) and grassland (25%) within 16 km, and shrubs (79%) within 80 km.

3 km

45 m

artificial surfaces 48%

16 km

135 m

shrubs 60%

80 km

353 m

shrubs 79%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwetland

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

September weather nearby: Hola 122 km · Masalani 150 km · Habaswein 164 km · Garba Tula 167 km · Mwingi 184 km · Maua 204 km · Kitui 208 km · Chuka 223 km

Kenya travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type G; 240 V · 50 Hz
Prices: ≈ 34% of US; price level, 2025
GDP per capita: $2,363; 2025
Happiness: 4.7 / 10; World Happiness, 2025
Homicide rate: 4.9; per 100k, 2022
Road deaths: 28.3; per 100k/yr, 2019
Income group: Lower middle; World Bank
English: High; EF EPI 593
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 Garissa (-0.4527°, 39.646°, elevation 147 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. 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	32	22
2	32	22
3	32	22
4	32	22
5	32	22
6	32	22
7	32	22
8	32	22
9	32	22
10	32	22
11	32	22
12	33	23
13	33	23
14	33	23
15	33	23
16	33	23
17	33	23
18	33	23
19	33	23
20	33	23
21	33	23
22	33	23
23	33	23
24	33	23
25	33	23
26	33	23
27	33	23
28	33	23
29	33	23
30	33	23

	Clearer (%)	Cloudier (%)
1	44	56
2	45	55
3	45	55
4	47	53
5	48	52
6	48	52
7	49	51
8	51	49
9	52	48
10	54	46
11	55	45
12	57	43
13	58	42
14	59	41
15	60	40
16	61	39
17	61	39
18	62	38
19	63	37
20	63	37
21	64	36
22	64	36
23	64	36
24	65	35
25	65	35
26	66	34
27	66	34
28	67	33
29	69	31
30	69	31

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

	Comfortable (%)	Humid (%)	Muggy (%)	Oppressive (%)
1	2	71	27	0
2	2	70	28	0
3	2	69	29	0
4	2	69	29	0
5	2	68	30	0
6	2	67	31	0
7	1	67	32	0
8	1	66	33	0
9	1	65	34	0
10	1	64	35	0
11	1	63	36	0
12	1	62	37	0
13	1	60	39	0
14	1	59	40	0
15	1	58	41	0
16	1	56	43	0
17	1	55	44	0
18	1	54	45	0
19	1	53	46	0
20	1	51	48	0
21	1	50	49	0
22	1	49	50	0
23	1	47	51	1
24	1	45	53	1
25	1	44	54	1
26	1	42	56	1
27	1	40	57	2
28	1	39	58	2
29	1	37	60	2
30	1	35	61	3

	Avg high (°C)	Avg low (°C)
1	32	22
2	32	22
3	32	22
4	32	22
5	32	22
6	32	22
7	32	22
8	32	22
9	32	22
10	32	22
11	32	22
12	33	23
13	33	23
14	33	23
15	33	23
16	33	23
17	33	23
18	33	23
19	33	23
20	33	23
21	33	23
22	33	23
23	33	23
24	33	23
25	33	23
26	33	23
27	33	23
28	33	23
29	33	23
30	33	23

	Clearer (%)	Cloudier (%)
1	44	56
2	45	55
3	45	55
4	47	53
5	48	52
6	48	52
7	49	51
8	51	49
9	52	48
10	54	46
11	55	45
12	57	43
13	58	42
14	59	41
15	60	40
16	61	39
17	61	39
18	62	38
19	63	37
20	63	37
21	64	36
22	64	36
23	64	36
24	65	35
25	65	35
26	66	34
27	66	34
28	67	33
29	69	31
30	69	31

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

	Comfortable (%)	Humid (%)	Muggy (%)	Oppressive (%)
1	2	71	27	0
2	2	70	28	0
3	2	69	29	0
4	2	69	29	0
5	2	68	30	0
6	2	67	31	0
7	1	67	32	0
8	1	66	33	0
9	1	65	34	0
10	1	64	35	0
11	1	63	36	0
12	1	62	37	0
13	1	60	39	0
14	1	59	40	0
15	1	58	41	0
16	1	56	43	0
17	1	55	44	0
18	1	54	45	0
19	1	53	46	0
20	1	51	48	0
21	1	50	49	0
22	1	49	50	0
23	1	47	51	1
24	1	45	53	1
25	1	44	54	1
26	1	42	56	1
27	1	40	57	2
28	1	39	58	2
29	1	37	60	2
30	1	35	61	3

	Avg high (°C)	Avg low (°C)
1	32	22
2	32	22
3	32	22
4	32	22
5	32	22
6	32	22
7	32	22
8	32	22
9	32	22
10	32	22
11	32	22
12	33	23
13	33	23
14	33	23
15	33	23
16	33	23
17	33	23
18	33	23
19	33	23
20	33	23
21	33	23
22	33	23
23	33	23
24	33	23
25	33	23
26	33	23
27	33	23
28	33	23
29	33	23
30	33	23

	Clearer (%)	Cloudier (%)
1	44	56
2	45	55
3	45	55
4	47	53
5	48	52
6	48	52
7	49	51
8	51	49
9	52	48
10	54	46
11	55	45
12	57	43
13	58	42
14	59	41
15	60	40
16	61	39
17	61	39
18	62	38
19	63	37
20	63	37
21	64	36
22	64	36
23	64	36
24	65	35
25	65	35
26	66	34
27	66	34
28	67	33
29	69	31
30	69	31

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

	Comfortable (%)	Humid (%)	Muggy (%)	Oppressive (%)
1	2	71	27	0
2	2	70	28	0
3	2	69	29	0
4	2	69	29	0
5	2	68	30	0
6	2	67	31	0
7	1	67	32	0
8	1	66	33	0
9	1	65	34	0
10	1	64	35	0
11	1	63	36	0
12	1	62	37	0
13	1	60	39	0
14	1	59	40	0
15	1	58	41	0
16	1	56	43	0
17	1	55	44	0
18	1	54	45	0
19	1	53	46	0
20	1	51	48	0
21	1	50	49	0
22	1	49	50	0
23	1	47	51	1
24	1	45	53	1
25	1	44	54	1
26	1	42	56	1
27	1	40	57	2
28	1	39	58	2
29	1	37	60	2
30	1	35	61	3