Cuilo weather in May

In May, Cuilo sees average daytime highs of 30°C and overnight lows near 17°C, with 16 mm of rain across 3.5 wet days and about 11.6 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 29°C in the first days to 30°C by the end. The sky is clear or mostly clear about 41% of the time in May, and the air most often feels dry.

Daylight stretches from about 11 h 42 min at the start of May to 11 h 36 min by month's end. Set against the rest of the year, May is Cuilo's 4th-clearest and 3rd-windiest month. For the whole year in context, see Cuilo's year-round climate.

Daytime high
30°
4th warmest
Overnight low
17°
4th coldest
Rainfall
16 mm
3.5 wet days
Daylight
11 h 36 min
5:49 AM – 5:27 PM
Cloud cover
48%
4th clearest
Wind
8 km/h
3rd windiest
Solar energy
5.53 kWh/m²
Travel score
6.0
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 29°C in the first days to 30°C by the end.

A typical May day in Cuilo reaches about 30°C in the afternoon and slips back to 17°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, May runs about 2°C warmer than April and on par with June.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12918
22918
32918
42918
52918
62918
72918
82918
92918
102918
112918
123018
133017
143017
153017
163017
173017
183017
193017
203017
213017
223017
233017
243017
253017
263017
273017
283017
293017
303017
313017

Cuilo weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 18°18826.212.43.9
Feb28° / 18°15121.812.34.1
Mar28° / 18°19025.612.13.9
Apr28° / 18°14220.111.84.6
May30° / 17°163.511.66.0
Jun30° / 16°20.511.56.2
Jul31° / 16°00.111.66.1
Aug31° / 17°183.811.75.3
Sep29° / 18°10618.2124.2
Oct28° / 18°19026.812.23.8
Nov27° / 18°21127.312.43.7
Dec27° / 18°20427.712.53.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 23% of May, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24654
34753
44951
55050
65248
75347
85545
95743
105842
116139
126337
136436
146634
156733
166832
176931
187129
197129
207228
217228
227228
237228
247228
257327
267327
277327
287228
297228
307228
317327

Chance of precipitation in May

Any precipitation

Cuilo gets around 16 mm of rain over 3.5 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 12% and peaks near 32% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
132
229
327
425
523
621
719
818
916
1015
1113
1212
1311
149
158
167
177
186
196
206
216
226
236
246
256
266
276
286
296
306
316

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 36% of days. Sticky, muggy-or-worse air turns up on roughly 13% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16173641
27193639
38203636
49223533
511243431
613253329
715273226
817283124
919293022
1022302919
1124312817
1227322715
1330322612
1433322510
153632248
163932237
174132225
184431214
194630204
204830193
215029193
225128183
235427172
245526172
255725162
265725162
275824162
286023152
296122152
306221152
316520141

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.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 42 min at the start of May to 11 h 36 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 5:48 AM to 5:52 AM, and sunset from 5:31 PM to 5:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:485:31
211.75:485:30
311.75:485:30
411.75:485:30
511.75:485:29
611.75:485:29
711.75:485:29
811.75:485:28
911.75:485:28
1011.75:495:28
1111.75:495:28
1211.65:495:28
1311.65:495:27
1411.65:495:27
1511.65:495:27
1611.65:495:27
1711.65:505:27
1811.65:505:27
1911.65:505:27
2011.65:505:26
2111.65:505:26
2211.65:505:26
2311.65:515:26
2411.65:515:26
2511.65:515:26
2611.65:515:26
2711.65:525:26
2811.65:525:26
2911.65:525:26
3011.65:525:26
3111.65:525:26

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.53 kWh/m².

For context, solar energy here swings from a low near 5 kWh/m² to a high of 5.74 kWh/m² in July across the year — May's 5.53 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in May

Hazard calendar for Cuilo

In seasonPeak

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

Cuilo's rainy season runs September–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 Cuilo?

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

6.0
Sightseeing
3rd-best month of the year
8.0
Beach & pool
3rd-best month of the year

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

What to pack for Cuilo in May

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

In May, Cuilo sees daytime highs around 30°C and nights near 17°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

UV index in Cuilo in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cuilo peaks around January 20 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 24 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 20UV 16Jul 24UV 7
UV index (midday)Level
Jan16Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May10Very high
Jun8Very high
Jul7Very high
Aug7Very high
Sep11Extreme
Oct14Extreme
Nov12Extreme
Dec13Extreme

Air quality in Cuilo 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 Cuilo is worst in July — around 232 µg/m³ PM2.5 (very unhealthy), about 26.4× the cleanest month (April, 9 µg/m³).

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

0306090120150180210240JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateUnhealthyVery unhealthyUnhealthyModerateGoodJul 17216 µg/m³Nov 229 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar11Good
Apr9Good
May25Moderate
Jun96Unhealthy
Jul232Very unhealthy
Aug104Unhealthy
Sep28Moderate
Oct14Moderate
Nov9Good
Dec10Good
Location & terrain

Where is Cuilo?

Cuilo sits at 8.2°S, 19.5°E, 1,059 m above sea level, in Angola. The nearest listed city is Lubalo, 106 km away.

LubaloLucapaChitatoDundoCafunfoSaurimoCuango-LuzambaCassanguidi

Topography around Cuilo

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

Within 3 km, the terrain around Cuilo has only modest variations in elevation — a maximum elevation change of 87 m around an average of 1,042 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 127 m; within 80 km, significant variations in elevation — a maximum elevation change of 539 m.

The land around Cuilo is covered by grassland (47%), trees (24%) and shrubs (24%) within 3 km, grassland (55%) and trees (29%) within 16 km, and grassland (53%) and trees (41%) within 80 km.

3 km
87 m
16 km
127 m
80 km
539 m
treesshrubsgrasslandartificial surfaceswetland
May weather nearby: Lubalo 106 km · Lucapa 136 km · Chitato 169 km · Dundo 172 km · Cafunfo 178 km · Saurimo 185 km · Cuango-Luzamba 192 km · Cassanguidi 213 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 Cuilo (-8.2362°, 19.5257°, elevation 1,059 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).