Calumbo weather in May

In May, Calumbo sees average daytime highs of 31°C and overnight lows near 22°C, with 12 mm of rain across 2 wet days and about 11.6 hours of daylight. It is the 4th-warmest and 8th-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 45% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 42 min at the start of May to 11 h 30 min by month's end. Set against the rest of the year, May is Calumbo's 3rd-clearest and 10th-windiest month. For the whole year in context, see Calumbo's year-round climate.

Daytime high
31°
4th warmest
Overnight low
22°
6th coldest
Rainfall
12 mm
2 wet days
Daylight
11 h 36 min
6:15 AM – 5:50 PM
Cloud cover
47%
3rd clearest
Wind
6 km/h
10th windiest
Solar energy
4.83 kWh/m²
Travel score
5.2
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 Calumbo reaches about 31°C in the afternoon and slips back to 22°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, May runs on par with April and about 2°C warmer than June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53123
63123
73123
83223
93223
103223
113223
123223
133223
143223
153223
163222
173222
183222
193222
203222
213122
223122
233122
243122
253122
263122
273121
283121
293121
303121
313121

How May really feels in Calumbo

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
heat index over the day's high
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.

Calumbo weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°7110.312.53.7
Feb33° / 23°7210.712.33.4
Mar32° / 24°11615.912.13.2
Apr31° / 24°12916.711.83.5
May31° / 22°12211.65.2
Jun30° / 19°0011.56.7
Jul28° / 18°0011.57.5
Aug29° / 18°20.211.77.0
Sep30° / 20°61.411.95.9
Oct30° / 22°184.212.25.1
Nov31° / 23°6712.112.44.1
Dec31° / 23°6911.612.53.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 38%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23466
33862
44159
54357
64654
74852
85149
95446
105644
115941
126040
136337
146436
156634
166733
176832
186931
197129
207129
217228
227327
237426
247426
257426
267426
277525
287624
297624
307723
317822

Chance of precipitation in May

Any precipitation

Calumbo gets around 12 mm of rain over 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 8% and peaks near 25% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
125
223
321
419
517
616
714
813
912
1011
1110
129
138
147
156
166
175
184
194
203
212
222
231
241
251
260
270
280
290
300
310

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 51% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1087319
2097417
30117415
40127414
50147412
60157411
70177310
8019729
9021718
10123697
11126676
12128665
13130654
14233614
15236593
16239572
17242542
18345511
19348481
20351451
21455410
22458380
23560350
24564310
25666280
26669250
27771220
28872200
29875170
301075150
311176130

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 42 min at the start of May to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over May. Sunrise moves from 6:13 AM to 6:18 AM, and sunset from 5:54 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:135:54
211.76:135:54
311.76:135:53
411.76:135:53
511.76:135:53
611.66:145:52
711.66:145:52
811.66:145:52
911.66:145:52
1011.66:145:51
1111.66:145:51
1211.66:145:51
1311.66:155:51
1411.66:155:50
1511.66:155:50
1611.66:155:50
1711.66:155:50
1811.66:155:50
1911.66:165:50
2011.66:165:49
2111.66:165:49
2211.66:165:49
2311.56:175:49
2411.56:175:49
2511.56:175:49
2611.56:175:49
2711.56:175:49
2811.56:185:49
2911.56:185:49
3011.56:185:49
3111.56:185:49

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.83 kWh/m².

For context, solar energy here swings from a low near 4.23 kWh/m² to a high of 5.56 kWh/m² in February across the year — May's 4.83 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.6Bright
44.6Bright
54.6Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in May

Hazard calendar for Calumbo

In seasonPeak

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

Calumbo'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 Calumbo?

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

5.2
Sightseeing
5th-best month of the year
7.8
Beach & pool
5th-best month of the year

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

What to pack for Calumbo in May

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

In May, Calumbo sees daytime highs around 31°C and nights near 22°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

Sea temperature near Calumbo in May

The nearest coast averages about 25°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 41 km away) is warmest in March at about 28°C and coldest in August near 20°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
Jan26Warm
Feb27Warm
Mar28Warm
Apr27Warm
May25Warm
Jun23Refreshing
Jul21Refreshing
Aug20Refreshing
Sep21Refreshing
Oct24Refreshing
Nov26Warm
Dec26Warm

UV index in Calumbo 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 Calumbo peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 11 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 12UV 15Aug 11UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr13Extreme
May9Very high
Jun7Very high
Jul6High
Aug6High
Sep10Very high
Oct11Extreme
Nov12Extreme
Dec12Extreme

Air quality in Calumbo 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 Calumbo is worst in July — around 47 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (January, 23 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1847 µg/m³Jan 1923 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb24Moderate
Mar29Moderate
Apr34Moderate
May35Moderate
Jun41Poor
Jul47Poor
Aug43Poor
Sep32Moderate
Oct27Moderate
Nov25Moderate
Dec26Moderate
Location & terrain

Where is Calumbo?

Calumbo sits at 9.1°S, 13.4°E, 15 m above sea level, in Angola. The nearest listed city is Zango, 15 km away.

Topography around Calumbo

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

Within 3 km, the terrain around Calumbo has only modest variations in elevation — a maximum elevation change of 106 m around an average of 20 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 182 m; within 80 km, significant variations in elevation — a maximum elevation change of 257 m.

The land around Calumbo is covered by wetland (42%) and grassland (41%) within 3 km, grassland (54%) and wetland (20%) within 16 km, and water (32%), grassland (31%) and trees (28%) within 80 km.

3 km
106 m
16 km
182 m
80 km
257 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Zango 15 km · Vila Flor 22 km · Viana 27 km · Camama 29 km · Mulenvos 33 km · Nova Vida 34 km · Golfe 36 km · Benfica 36 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 Calumbo (-9.1469°, 13.4194°, elevation 15 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).