Sé weather in May

In May, Sé sees average daytime highs of 31°C and overnight lows near 25°C, with 194 mm of rain across 26.2 wet days and about 12.3 hours of daylight. It is the 7th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°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 12 min at the start of May to 12 h 18 min by month's end. Set against the rest of the year, May is 's 8th-clearest and 8th-windiest month. For the whole year in context, see 's year-round climate.

Daytime high
31°
7th warmest
Overnight low
25°
9th coldest
Rainfall
194 mm
26.2 wet days
Daylight
12 h 18 min
6:40 AM – 6:58 PM
Cloud cover
80%
8th clearest
Wind
8 km/h
8th windiest
Solar energy
4.92 kWh/m²
Travel score
2.7
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical May day in Sé reaches about 31°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, May runs about 1°C cooler than April and about 2°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13225
23125
33125
43125
53125
63125
73125
83125
93125
103125
113125
123125
133125
143125
153125
163125
173125
183125
193125
203125
213125
223125
233125
243125
253125
263025
273025
283024
293024
303024
313024

How May really feels in Sé

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
31
11 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

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

Sé weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°309.711.74.3
Feb32° / 26°4612.111.83.5
Mar32° / 26°8020122.9
Apr32° / 25°11621.412.12.9
May31° / 25°19426.212.32.7
Jun29° / 24°20726.712.43.1
Jul28° / 24°12922.712.34.0
Aug28° / 23°10118.912.24.6
Sep29° / 24°16725.2123.4
Oct30° / 24°18827.111.93.0
Nov31° / 25°9521.911.73.2
Dec32° / 25°4312.611.64.2

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 15% of May, with mostly cloudy or overcast conditions the remaining 82%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12080
22179
32179
42179
52179
62179
72278
82278
92278
102278
112278
122278
132377
142278
152179
162179
172179
182080
191981
201882
211882
221684
231585
241585
251486
261387
271288
281189
291189
301090
311090

Chance of precipitation in May

Any precipitation

Sé gets around 194 mm of rain over 26.2 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 85% and peaks near 91% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
179
279
380
480
581
681
781
882
982
1082
1183
1283
1384
1484
1584
1685
1785
1886
1986
2086
2187
2287
2388
2488
2589
2689
2790
2890
2990
3091
3191

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 89% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1595
2595
3595
4595
5595
6595
7595
8694
9694
10694
11694
12793
13793
14793
15892
16892
17991
181090
191090
201189
211288
221387
231486
241585
251684
261783
271981
282080
292278
302377
312575

Wind in May

Winds average 8 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.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 12 min at the start of May to 12 h 18 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 6:43 AM to 6:40 AM, and sunset from 6:57 PM to 7:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:436:57
212.26:436:57
312.26:436:57
412.26:426:57
512.26:426:57
612.36:426:57
712.36:426:57
812.36:416:57
912.36:416:57
1012.36:416:57
1112.36:416:57
1212.36:416:57
1312.36:406:57
1412.36:406:58
1512.36:406:58
1612.36:406:58
1712.36:406:58
1812.36:406:58
1912.36:406:58
2012.36:406:58
2112.36:406:59
2212.36:406:59
2312.36:406:59
2412.36:406:59
2512.36:406:59
2612.36:406:59
2712.36:407:00
2812.36:407:00
2912.36:407:00
3012.36:407:00
3112.36:407:00

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.92 kWh/m².

For context, solar energy here swings from a low near 4.19 kWh/m² to a high of 5.6 kWh/m² in March across the year — May's 4.92 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
174.9Bright
184.9Bright
194.9Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.7Bright
254.7Bright
264.6Bright
274.6Bright
284.5Bright
294.5Bright
304.5Bright
314.4Bright
Planning a trip in May

Hazard calendar for Sé

In seasonPeak

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

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

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

Is May a good time to visit Sé?

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

2.7
Sightseeing
12th-best month of the year
4.1
Beach & pool
11th-best month of the year

May is a weaker month for outdoor sightseeing in Sé.

What to pack for Sé in May

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

In May, sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

Sea temperature near Sé in May

The nearest coast averages about 29°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 43 km away) is warmest in May at about 29°C and coldest in August near 25°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Warm
Jul25Warm
Aug25Warm
Sep26Warm
Oct27Warm
Nov28Tropical
Dec28Tropical

UV index in Sé 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 peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeExtremeVery highApr 10UV 13Dec 16UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul10Extreme
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov9Very high
Dec8Very high

Air quality in Sé 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 is worst in January — around 111 µg/m³ PM2.5 (unhealthy), about 4.0× the cleanest month (August, 28 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 14109 µg/m³Aug 1228 µg/m³
PM2.5 (µg/m³)Level
Jan111Unhealthy
Feb87Unhealthy
Mar49Poor
Apr48Poor
May37Poor
Jun34Moderate
Jul29Moderate
Aug28Moderate
Sep33Moderate
Oct46Poor
Nov52Poor
Dec99Unhealthy
Location & terrain

Where is Sé?

Sé sits at 6.5°N, 1.8°E, 32 m above sea level, in Benin. The nearest listed city is Comé, 13 km away.

Topography around Sé

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

Within 3 km, the terrain around Sé has only modest variations in elevation — a maximum elevation change of 54 m around an average of 29 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 103 m; within 80 km, significant variations in elevation — a maximum elevation change of 253 m.

The land around is covered by trees (63%) within 3 km, trees (51%) and grassland (21%) within 16 km, and trees (34%) and water (26%) within 80 km.

3 km
54 m
16 km
103 m
80 km
253 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Comé 13 km · Lokossa 19 km · Athiémé 19 km · Kouandé 29 km · Dogbo 32 km · Ouidah 33 km · Tabligbo 37 km · Vogan 38 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
Muslim 28%Roman Catholic 26%Protestant 14%Vodoun 12%

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 (6.5111°, 1.8283°, elevation 32 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).