Soyo weather in May

In May, Soyo sees average daytime highs of 26°C and overnight lows near 25°C, with 25 mm of rain across 4.3 wet days and about 11.7 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 25°C by the end. The sky is clear or mostly clear about 33% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of May to 11 h 42 min by month's end. Set against the rest of the year, May is Soyo's 3rd-clearest and 5th-windiest month. For the whole year in context, see Soyo's year-round climate.

Daytime high
26°
7th warmest
Overnight low
25°
6th coldest
Rainfall
25 mm
4.3 wet days
Daylight
11 h 42 min
6:15 AM – 5:58 PM
Cloud cover
56%
3rd clearest
Wind
13 km/h
5th windiest
Solar energy
4.57 kWh/m²
Travel score
7.6
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 27°C in the first days to 25°C by the end.

A typical May day in Soyo reaches about 26°C in the afternoon and slips back to 25°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 27°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12726
22726
32726
42726
52726
62626
72626
82626
92626
102625
112625
122625
132625
142625
152625
162625
172625
182625
192625
202625
212625
222625
232525
242525
252525
262525
272524
282524
292524
302524
312524

How May really feels in Soyo

Once humidity and wind are folded in, May averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Soyo weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 26°8713.912.35.7
Feb28° / 26°8913.412.25.5
Mar28° / 27°9414.2125.5
Apr27° / 26°10014.411.95.6
May26° / 25°254.311.77.6
Jun24° / 23°0011.78.8
Jul22° / 21°0011.78.3
Aug22° / 21°10.211.88.1
Sep23° / 22°20.7128.2
Oct25° / 24°184.112.17.6
Nov26° / 25°6411.512.36.3
Dec26° / 25°7912.412.36.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 25% of May, with mostly cloudy or overcast conditions the remaining 43%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23565
33763
43961
54060
64357
74555
84753
95050
105149
115446
125644
135842
146040
156139
166238
176337
186535
196634
206634
216733
226733
236832
246733
256832
266832
276733
286733
296733
306832
316832

Chance of precipitation in May

Any precipitation

Soyo gets around 25 mm of rain over 4.3 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 15% and peaks near 38% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
236
334
432
530
628
726
824
922
1020
1118
1217
1315
1414
1513
1612
1711
1810
199
208
217
227
236
245
255
264
274
283
293
302
312

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 64% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
103466
203565
303763
403961
504159
604357
704654
804852
905149
1005347
1115544
1215742
1316039
1416237
1516534
1616732
1716930
1827127
1927325
2027523
2137720
2247818
2348016
2458114
2568212
2678310
278839
2810837
2911836
3013825
3114824

Wind in May

Winds average 13 km/h in May.

Across May, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 48 min at the start of May to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over May. Sunrise moves from 6:14 AM to 6:18 AM, and sunset from 6:01 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:146:01
211.86:146:01
311.86:146:01
411.86:146:01
511.86:146:00
611.86:146:00
711.86:146:00
811.86:146:00
911.86:145:59
1011.76:145:59
1111.76:155:59
1211.76:155:59
1311.76:155:59
1411.76:155:59
1511.76:155:59
1611.76:155:58
1711.76:155:58
1811.76:155:58
1911.76:165:58
2011.76:165:58
2111.76:165:58
2211.76:165:58
2311.76:165:58
2411.76:165:58
2511.76:175:58
2611.76:175:58
2711.76:175:58
2811.76:175:58
2911.76:175:58
3011.76:185:58
3111.76:185:58

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.57 kWh/m².

For context, solar energy here swings from a low near 4.41 kWh/m² to a high of 5.33 kWh/m² in February across the year — May's 4.57 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.4Bright
294.4Bright
304.4Bright
314.4Bright
Planning a trip in May

Hazard calendar for Soyo

In seasonPeak

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

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

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

Is May a good time to visit Soyo?

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

7.6
Sightseeing
5th-best month of the year
7.1
Beach & pool
1st-best month of the year

May is one of the better times to visit Soyo for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Soyo in May

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

In May, Soyo sees daytime highs around 26°C and nights near 25°C. Worth packing: light clothes and sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near Soyo in May

The nearest coast averages about 26°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 27 km away) is warmest in March at about 28°C and coldest in August near 21°C.

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

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Tropical
Mar28Tropical
Apr28Warm
May26Warm
Jun23Refreshing
Jul22Refreshing
Aug21Refreshing
Sep23Refreshing
Oct25Warm
Nov26Warm
Dec27Warm

UV index in Soyo in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Soyo peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 10 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeMar 15UV 15Aug 10UV 6
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar15Extreme
Apr12Extreme
May9Very high
Jun7High
Jul6High
Aug6High
Sep10Very high
Oct13Extreme
Nov11Extreme
Dec10Extreme

Air quality in Soyo 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 Soyo is worst in July — around 22 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (November, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1521 µg/m³Nov 128 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar9Good
Apr10Good
May15Moderate
Jun19Moderate
Jul22Moderate
Aug18Moderate
Sep11Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Soyo?

Soyo sits at 6.1°S, 12.4°E, 10 m above sea level, in Angola. The nearest listed city is Moanda, 23 km away.

MatadiTombôcoN'zetoTshelaKenge

Topography around Soyo

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

Within 3 km, the terrain around Soyo has only modest variations in elevation — a maximum elevation change of 24 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 139 m; within 80 km, significant variations in elevation — a maximum elevation change of 314 m.

The land around Soyo is covered by artificial surfaces (31%), mangroves (30%) and water (22%) within 3 km, water (52%) within 16 km, and water (39%), trees (29%) and grassland (26%) within 80 km.

3 km
24 m
16 km
139 m
80 km
314 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
May weather nearby: Moanda 23 km · Cabinda 67 km · Boma 82 km · Matadi 125 km · Tombôco 130 km · N'zeto 134 km · Tshela 142 km · Kenge 148 km

Angola travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
220 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$3,129
2025
Happiness
3.8 / 10
World Happiness, 2017
Homicide rate
4.1
per 100k, 2016
Road deaths
26.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 413
Religion
Roman Catholic 41%Protestant 38%none 12%other 9%

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 Soyo (-6.1349°, 12.3689°, elevation 10 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).