Piri weather in May

In May, Piri sees average daytime highs of 28°C and overnight lows near 20°C, with 56 mm of rain across 9.7 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 28°C through the month. The sky is clear or mostly clear about 37% of the time in May, and the air most often feels muggy.

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 Piri's 4th-clearest and 9th-windiest month. For the whole year in context, see Piri's year-round climate.

Daytime high
28°
4th warmest
Overnight low
20°
6th coldest
Rainfall
56 mm
9.7 wet days
Daylight
11 h 36 min
6:10 AM – 5:47 PM
Cloud cover
54%
4th clearest
Wind
4 km/h
9th windiest
Solar energy
4.74 kWh/m²
Travel score
6.1
out of 10

Piri is town and commune in the municipality of Dembos, province of Bengo, Angola.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical May day in Piri reaches about 28°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°C. Set against its neighbours, May runs on par with April and on par with June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12821
22821
32821
42821
52821
62821
72821
82821
92821
102821
112821
122821
132821
142820
152820
162820
172820
182820
192820
202820
212820
222820
232820
242820
252819
262819
272819
282819
292819
302819
312819

Piri 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
Jan28° / 21°13317.912.44.7
Feb29° / 21°13015.712.34.4
Mar29° / 21°19621.712.13.8
Apr29° / 21°27626.811.83.3
May28° / 20°569.711.66.1
Jun28° / 17°20.311.58.4
Jul27° / 16°10.111.68.5
Aug27° / 17°51.311.78.0
Sep28° / 18°175.511.96.8
Oct28° / 20°7716.112.25.2
Nov28° / 21°21523.612.44.1
Dec28° / 21°17521.412.54.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12278
22575
32773
43070
53367
63664
73862
84159
94456
104753
115050
125347
135545
145743
156040
166238
176337
186436
196535
206634
216733
226733
236832
246832
256931
267030
277030
287129
297129
307327
317426

Chance of precipitation in May

Any precipitation

Piri gets around 56 mm of rain over 9.7 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 33% and peaks near 74% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
174
271
368
465
562
659
755
852
949
1045
1142
1239
1336
1433
1530
1628
1725
1823
1920
2018
2116
2215
2313
2412
2511
2610
279
288
297
307
316

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 53% of days. Sticky, muggy-or-worse air turns up on roughly 88% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1001882
2002080
3012376
4012574
5012871
6013168
7023563
8023860
9034156
10034453
11044749
12055045
13055342
14065638
15075835
16086032
17096328
180106525
190116722
200126919
210137017
220157114
230167212
240187210
25020728
26022717
27025696
28028684
29032653
30035623
31139582

Wind in May

Winds average 4 km/h in May.

Across May, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

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 6:08 AM to 6:13 AM, and sunset from 5:51 PM to 5:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:085:51
211.76:085:50
311.76:095:50
411.76:095:50
511.76:095:49
611.76:095:49
711.76:095:49
811.76:095:48
911.76:095:48
1011.66:095:48
1111.66:095:48
1211.66:105:48
1311.66:105:47
1411.66:105:47
1511.66:105:47
1611.66:105:47
1711.66:105:47
1811.66:115:47
1911.66:115:46
2011.66:115:46
2111.66:115:46
2211.66:115:46
2311.66:125:46
2411.66:125:46
2511.66:125:46
2611.66:125:46
2711.66:125:46
2811.66:135:46
2911.66:135:46
3011.56:135:46
3111.56:135:46

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.74 kWh/m².

For context, solar energy here swings from a low near 4.19 kWh/m² to a high of 5.42 kWh/m² in February across the year — May's 4.74 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in May

Hazard calendar for Piri

In seasonPeak

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

Piri'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 Piri?

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

6.1
Sightseeing
5th-best month of the year
6.9
Beach & pool
5th-best month of the year

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

What to pack for Piri in May

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

In May, Piri sees daytime highs around 28°C and nights near 20°C. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Piri 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 Piri peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 13 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 14UV 15Aug 13UV 6
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar15Extreme
Apr13Extreme
May9Very high
Jun8Very high
Jul7Very high
Aug6High
Sep10Very high
Oct13Extreme
Nov12Extreme
Dec12Extreme

Air quality in Piri 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 Piri is worst in September — around 57 µg/m³ PM2.5 (unhealthy), about 2.3× the cleanest month (January, 24 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorPoorModerateJul 1356 µg/m³Jan 1625 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb26Moderate
Mar29Moderate
Apr30Moderate
May39Poor
Jun55Poor
Jul56Unhealthy
Aug51Poor
Sep57Unhealthy
Oct38Poor
Nov25Moderate
Dec26Moderate
Location & terrain

Where is Piri?

Piri sits at 8.5°S, 14.4°E, 695 m above sea level, in Angola. The nearest listed city is Pango Aluquém, 20 km away.

Topography around Piri

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

Within 3 km, the terrain around Piri has significant variations in elevation — a maximum elevation change of 319 m around an average of 692 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 752 m; within 80 km, large variations in elevation — a maximum elevation change of 1,116 m.

The land around Piri is covered by trees (94%) within 3 km, trees (94%) within 16 km, and trees (78%) and grassland (20%) within 80 km.

3 km
319 m
16 km
752 m
80 km
1,116 m
treesshrubsgrasslandartificial surfaces
May weather nearby: Pango Aluquém 20 km · Cage Mazumbo 28 km · Úcua 33 km · Bula Atumba 43 km · Gombe 48 km · Muxaluando 48 km · Canacassala 54 km · Golungo Alto 76 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 Piri (-8.5341°, 14.4355°, elevation 695 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).