Kétou weather in May

In May, Kétou sees average daytime highs of 32°C and overnight lows near 25°C, with 124 mm of rain across 22.4 wet days and about 12.3 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 4% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 18 min at the start of May to 12 h 24 min by month's end. Set against the rest of the year, May is Kétou's 8th-clearest and 6th-windiest month. For the whole year in context, see Kétou's year-round climate.

Daytime high: 32°; 7th warmest
Overnight low: 25°; 9th coldest
Rainfall: 124 mm; 22.4 wet days
Daylight: 12 h 18 min; 6:36 AM – 6:56 PM
Cloud cover: 80%; 8th clearest
Wind: 7 km/h; 6th windiest
Solar energy: 4.76 kWh/m²
Travel score: 2.7; out of 10

← April Kétou year-round climate June →Best places to visit in May

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical May day in Kétou reaches about 32°C in the afternoon and slips back to 25°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, May runs about 1°C cooler than April and about 2°C warmer than June.

	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	31
Avg high (°C)	33	33	33	33	33	33	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	31	31	31	31	31
Avg low (°C)	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	24	24	24	24	24	24	24	24	24	24	24	24

	Avg high (°C)	Avg low (°C)
1	33	25
2	33	25
3	33	25
4	33	25
5	33	25
6	33	25
7	32	25
8	32	25
9	32	25
10	32	25
11	32	25
12	32	25
13	32	25
14	32	25
15	32	25
16	32	25
17	32	25
18	32	25
19	32	25
20	32	24
21	32	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	31	24
28	31	24
29	31	24
30	31	24
31	31	24

How May really feels in Kétou

Once humidity and wind are folded in, May averages 31 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

14 feel dangerously hot (≥ 39°C)

Days feeling ≤ 0°C

wind chill below the day's low

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

Kétou weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	34° / 24°	10	2.4	11.6	3.5
Feb	35° / 25°	22	5.3	11.8	2.7
Mar	35° / 26°	51	11.7	12	2.5
Apr	33° / 25°	78	15.4	12.2	2.7
May	32° / 25°	124	22.4	12.3	2.7
Jun	30° / 24°	145	24.1	12.4	3.1
Jul	29° / 23°	135	21.9	12.4	3.7
Aug	29° / 23°	133	20.4	12.2	4.0
Sep	30° / 23°	136	22.7	12	3.4
Oct	31° / 23°	103	19.8	11.8	3.4
Nov	33° / 24°	24	6.7	11.7	3.9
Dec	34° / 24°	9	2.5	11.6	3.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 14% of May, with mostly cloudy or overcast conditions the remaining 82%.

	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	31
Clearer (%)	17	18	18	18	18	18	18	19	20	20	20	21	21	21	21	21	20	19	19	19	18	18	17	16	16	15	15	14	14	14	14
Cloudier (%)	83	82	82	82	82	82	82	81	80	80	80	79	79	79	79	79	80	81	81	81	82	82	83	84	84	85	85	86	86	86	86

	Clearer (%)	Cloudier (%)
1	17	83
2	18	82
3	18	82
4	18	82
5	18	82
6	18	82
7	18	82
8	19	81
9	20	80
10	20	80
11	20	80
12	21	79
13	21	79
14	21	79
15	21	79
16	21	79
17	20	80
18	19	81
19	19	81
20	19	81
21	18	82
22	18	82
23	17	83
24	16	84
25	16	84
26	15	85
27	15	85
28	14	86
29	14	86
30	14	86
31	14	86

Chance of precipitation in May

Any precipitation

Kétou gets around 124 mm of rain over 22.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 72% and peaks near 80% 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	31
Rain chance (%)	64	65	66	66	67	68	68	68	69	69	69	69	69	70	70	71	71	72	72	73	74	75	76	76	77	78	79	79	80	80	80

	Rain chance (%)
1	64
2	65
3	66
4	66
5	67
6	68
7	68
8	68
9	69
10	69
11	69
12	69
13	69
14	70
15	70
16	71
17	71
18	72
19	72
20	73
21	74
22	75
23	76
24	76
25	77
26	78
27	79
28	79
29	80
30	80
31	80

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the miserable band about 58% of days. Sticky, muggy-or-worse air turns up on roughly 100% 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	31
Oppressive (%)	35	35	35	35	35	35	35	36	36	36	37	37	37	38	39	39	40	41	42	43	44	45	47	48	50	51	53	55	57	59	61
Miserable (%)	65	65	65	65	65	65	65	64	64	64	63	63	63	62	61	61	60	59	58	57	56	55	53	52	50	49	47	45	43	41	39

	Oppressive (%)	Miserable (%)
1	35	65
2	35	65
3	35	65
4	35	65
5	35	65
6	35	65
7	35	65
8	36	64
9	36	64
10	36	64
11	37	63
12	37	63
13	37	63
14	38	62
15	39	61
16	39	61
17	40	60
18	41	59
19	42	58
20	43	57
21	44	56
22	45	55
23	47	53
24	48	52
25	50	50
26	51	49
27	53	47
28	55	45
29	57	43
30	59	41
31	61	39

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 8 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	31
Wind speed (km/h)	8	8	8	8	8	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
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	calm

	Wind speed (km/h)	Feels
1	8	calm
2	8	calm
3	8	calm
4	8	calm
5	8	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	7	calm
29	7	calm
30	7	calm
31	7	calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 18 min at the start of May to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over May. Sunrise moves from 6:39 AM to 6:35 AM, and sunset from 6:54 PM to 6:59 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	31
Daylight (h)	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4
Sunrise (AM)	6:39	6:39	6:39	6:38	6:38	6:38	6:37	6:37	6:37	6:37	6:37	6:36	6:36	6:36	6:36	6:36	6:36	6:36	6:35	6:35	6:35	6:35	6:35	6:35	6:35	6:35	6:35	6:35	6:35	6:35	6:35
Sunset (PM)	6:54	6:55	6:55	6:55	6:55	6:55	6:55	6:55	6:55	6:55	6:55	6:55	6:55	6:56	6:56	6:56	6:56	6:56	6:56	6:57	6:57	6:57	6:57	6:57	6:57	6:58	6:58	6:58	6:58	6:59	6:59

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.3	6:39	6:54
2	12.3	6:39	6:55
3	12.3	6:39	6:55
4	12.3	6:38	6:55
5	12.3	6:38	6:55
6	12.3	6:38	6:55
7	12.3	6:37	6:55
8	12.3	6:37	6:55
9	12.3	6:37	6:55
10	12.3	6:37	6:55
11	12.3	6:37	6:55
12	12.3	6:36	6:55
13	12.3	6:36	6:55
14	12.3	6:36	6:56
15	12.3	6:36	6:56
16	12.3	6:36	6:56
17	12.3	6:36	6:56
18	12.3	6:36	6:56
19	12.3	6:35	6:56
20	12.4	6:35	6:57
21	12.4	6:35	6:57
22	12.4	6:35	6:57
23	12.4	6:35	6:57
24	12.4	6:35	6:57
25	12.4	6:35	6:57
26	12.4	6:35	6:58
27	12.4	6:35	6:58
28	12.4	6:35	6:58
29	12.4	6:35	6:58
30	12.4	6:35	6:59
31	12.4	6:35	6:59

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.76 kWh/m².

For context, solar energy here swings from a low near 3.76 kWh/m² to a high of 5.61 kWh/m² in February across the year — May's 4.76 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	31
Solar energy (kWh/m²)	5.0	5.0	5.0	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.7	4.7	4.7	4.7	4.6	4.6	4.6	4.5	4.5	4.5	4.4	4.4
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	Bright

	Solar energy (kWh/m²)	Level
1	5.0	Bright
2	5.0	Bright
3	5.0	Bright
4	4.9	Bright
5	4.9	Bright
6	4.9	Bright
7	4.9	Bright
8	4.9	Bright
9	4.9	Bright
10	4.9	Bright
11	4.9	Bright
12	4.8	Bright
13	4.8	Bright
14	4.8	Bright
15	4.8	Bright
16	4.8	Bright
17	4.8	Bright
18	4.8	Bright
19	4.8	Bright
20	4.7	Bright
21	4.7	Bright
22	4.7	Bright
23	4.7	Bright
24	4.6	Bright
25	4.6	Bright
26	4.6	Bright
27	4.5	Bright
28	4.5	Bright
29	4.5	Bright
30	4.4	Bright
31	4.4	Bright

Planning a trip in May

Hazard calendar for Kétou

In seasonPeak

In May, Kétou sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Kétou's rainy season runs April–October, when most of the year's rain falls.

Kétou sees seasonal dust haze (January–April), heaviest in February.

Rainy season

Dust

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is May a good time to visit Kétou?

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

2.7

Sightseeing

9th-best month of the year

4.4

Beach & pool

11th-best month of the year

May is a weaker month for outdoor sightseeing in Kétou.

What to pack for Kétou in May

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

In May, Kétou sees daytime highs around 32°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Kétou in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kétou peaks around April 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 8 (very high).

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)	8	8	12	13	11	11	11	10	12	12	9	7
Level	Very high	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	8	Very high
Feb	8	Very high
Mar	12	Extreme
Apr	13	Extreme
May	11	Extreme
Jun	11	Extreme
Jul	11	Extreme
Aug	10	Very high
Sep	12	Extreme
Oct	12	Extreme
Nov	9	Very high
Dec	7	Very high

Air quality in Kétou in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Kétou is worst in January — around 97 µg/m³ PM2.5 (unhealthy), about 4.2× the cleanest month (August, 23 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)	97	87	46	42	28	26	24	23	26	35	43	85
Level	Unhealthy	Unhealthy	Poor	Poor	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Poor	Unhealthy

	PM2.5 (µg/m³)	Level
Jan	97	Unhealthy
Feb	87	Unhealthy
Mar	46	Poor
Apr	42	Poor
May	28	Moderate
Jun	26	Moderate
Jul	24	Moderate
Aug	23	Moderate
Sep	26	Moderate
Oct	35	Moderate
Nov	43	Poor
Dec	85	Unhealthy

Location & terrain

Where is Kétou?

Kétou sits at 7.4°N, 2.6°E, 103 m above sea level, in Benin. The nearest listed city is Cové, 33 km away.

Topography around Kétou

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

Within 3 km, the terrain around Kétou has only modest variations in elevation — a maximum elevation change of 87 m around an average of 109 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 254 m; within 80 km, significant variations in elevation — a maximum elevation change of 496 m.

The land around Kétou is covered by artificial surfaces (29%), shrubs (26%) and cropland (26%) within 3 km, shrubs (28%), cropland (26%) and grassland (25%) within 16 km, and trees (41%) and shrubs (30%) within 80 km.

3 km

87 m

artificial surfaces 29%

16 km

254 m

shrubs 28%

80 km

496 m

trees 41%

treesshrubsgrasslandcroplandartificial surfaces

← April Kétou year-round climate June →Best places to visit in May

May weather nearby: Cové 33 km · Ouinhi 34 km · Adjaouèrè 40 km · Pobé 43 km · Kpozoun 45 km · Bohicon 62 km · Dassa-Zoumè 63 km · Ilaro 70 km

Benin travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / E; 220 V · 50 Hz
Prices: ≈ 34% of US; price level, 2025
GDP per capita: $1,658; 2025
Happiness: 4.4 / 10; World Happiness, 2025
Safe drinking water: 18%; of population, 2024
Homicide rate: 1.1; per 100k, 2017
Road deaths: 26.8; per 100k/yr, 2019
Income group: Lower middle; World Bank
English: Very low; EF EPI 406
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 Kétou (7.3633°, 2.5998°, elevation 103 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	33	25
2	33	25
3	33	25
4	33	25
5	33	25
6	33	25
7	32	25
8	32	25
9	32	25
10	32	25
11	32	25
12	32	25
13	32	25
14	32	25
15	32	25
16	32	25
17	32	25
18	32	25
19	32	25
20	32	24
21	32	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	31	24
28	31	24
29	31	24
30	31	24
31	31	24

	Clearer (%)	Cloudier (%)
1	17	83
2	18	82
3	18	82
4	18	82
5	18	82
6	18	82
7	18	82
8	19	81
9	20	80
10	20	80
11	20	80
12	21	79
13	21	79
14	21	79
15	21	79
16	21	79
17	20	80
18	19	81
19	19	81
20	19	81
21	18	82
22	18	82
23	17	83
24	16	84
25	16	84
26	15	85
27	15	85
28	14	86
29	14	86
30	14	86
31	14	86

	Rain chance (%)
1	64
2	65
3	66
4	66
5	67
6	68
7	68
8	68
9	69
10	69
11	69
12	69
13	69
14	70
15	70
16	71
17	71
18	72
19	72
20	73
21	74
22	75
23	76
24	76
25	77
26	78
27	79
28	79
29	80
30	80
31	80

	Oppressive (%)	Miserable (%)
1	35	65
2	35	65
3	35	65
4	35	65
5	35	65
6	35	65
7	35	65
8	36	64
9	36	64
10	36	64
11	37	63
12	37	63
13	37	63
14	38	62
15	39	61
16	39	61
17	40	60
18	41	59
19	42	58
20	43	57
21	44	56
22	45	55
23	47	53
24	48	52
25	50	50
26	51	49
27	53	47
28	55	45
29	57	43
30	59	41
31	61	39

	Avg high (°C)	Avg low (°C)
1	33	25
2	33	25
3	33	25
4	33	25
5	33	25
6	33	25
7	32	25
8	32	25
9	32	25
10	32	25
11	32	25
12	32	25
13	32	25
14	32	25
15	32	25
16	32	25
17	32	25
18	32	25
19	32	25
20	32	24
21	32	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	31	24
28	31	24
29	31	24
30	31	24
31	31	24

	Clearer (%)	Cloudier (%)
1	17	83
2	18	82
3	18	82
4	18	82
5	18	82
6	18	82
7	18	82
8	19	81
9	20	80
10	20	80
11	20	80
12	21	79
13	21	79
14	21	79
15	21	79
16	21	79
17	20	80
18	19	81
19	19	81
20	19	81
21	18	82
22	18	82
23	17	83
24	16	84
25	16	84
26	15	85
27	15	85
28	14	86
29	14	86
30	14	86
31	14	86

	Rain chance (%)
1	64
2	65
3	66
4	66
5	67
6	68
7	68
8	68
9	69
10	69
11	69
12	69
13	69
14	70
15	70
16	71
17	71
18	72
19	72
20	73
21	74
22	75
23	76
24	76
25	77
26	78
27	79
28	79
29	80
30	80
31	80

	Oppressive (%)	Miserable (%)
1	35	65
2	35	65
3	35	65
4	35	65
5	35	65
6	35	65
7	35	65
8	36	64
9	36	64
10	36	64
11	37	63
12	37	63
13	37	63
14	38	62
15	39	61
16	39	61
17	40	60
18	41	59
19	42	58
20	43	57
21	44	56
22	45	55
23	47	53
24	48	52
25	50	50
26	51	49
27	53	47
28	55	45
29	57	43
30	59	41
31	61	39

	Avg high (°C)	Avg low (°C)
1	33	25
2	33	25
3	33	25
4	33	25
5	33	25
6	33	25
7	32	25
8	32	25
9	32	25
10	32	25
11	32	25
12	32	25
13	32	25
14	32	25
15	32	25
16	32	25
17	32	25
18	32	25
19	32	25
20	32	24
21	32	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	31	24
28	31	24
29	31	24
30	31	24
31	31	24

	Clearer (%)	Cloudier (%)
1	17	83
2	18	82
3	18	82
4	18	82
5	18	82
6	18	82
7	18	82
8	19	81
9	20	80
10	20	80
11	20	80
12	21	79
13	21	79
14	21	79
15	21	79
16	21	79
17	20	80
18	19	81
19	19	81
20	19	81
21	18	82
22	18	82
23	17	83
24	16	84
25	16	84
26	15	85
27	15	85
28	14	86
29	14	86
30	14	86
31	14	86

	Rain chance (%)
1	64
2	65
3	66
4	66
5	67
6	68
7	68
8	68
9	69
10	69
11	69
12	69
13	69
14	70
15	70
16	71
17	71
18	72
19	72
20	73
21	74
22	75
23	76
24	76
25	77
26	78
27	79
28	79
29	80
30	80
31	80

	Oppressive (%)	Miserable (%)
1	35	65
2	35	65
3	35	65
4	35	65
5	35	65
6	35	65
7	35	65
8	36	64
9	36	64
10	36	64
11	37	63
12	37	63
13	37	63
14	38	62
15	39	61
16	39	61
17	40	60
18	41	59
19	42	58
20	43	57
21	44	56
22	45	55
23	47	53
24	48	52
25	50	50
26	51	49
27	53	47
28	55	45
29	57	43
30	59	41
31	61	39