Angra do Heroísmo weather in May

In May, Angra do Heroísmo sees average daytime highs of 17°C and overnight lows near 16°C, with 51 mm of rain across 7.8 wet days and about 14.1 hours of daylight. It is the 7th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 17°C through the month. The sky is clear or mostly clear about 23% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 36 min at the start of May to 14 h 30 min by month's end. Set against the rest of the year, May is Angra do Heroísmo's 5th-clearest and 8th-windiest month. For the whole year in context, see Angra do Heroísmo's year-round climate.

Daytime high
17°
7th warmest
Overnight low
16°
6th coldest
Rainfall
51 mm
7.8 wet days
Daylight
14 h 06 min
5:42 AM – 7:48 PM
Cloud cover
62%
5th clearest
Wind
25 km/h
8th windiest
Solar energy
6.14 kWh/m²
Travel score
5.7
out of 10

Angra do Heroísmo is city seat of Angra do Heroísmo municipality, Azores, Portugal.

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 17°C through the month.

A typical May day in Angra do Heroísmo reaches about 17°C in the afternoon and slips back to 16°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 18°C. Set against its neighbours, May runs about 1°C warmer than April and about 2°C cooler than June.

10°13°15°18°20°151015202531
Avg high (°C)Avg low (°C)
11615
21615
31615
41615
51615
61615
71615
81615
91715
101715
111715
121716
131716
141716
151716
161716
171716
181716
191716
201716
211716
221716
231716
241716
251716
261816
271817
281817
291817
301817
311817

Angra do Heroísmo weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan16° / 15°7911.59.64.7
Feb15° / 14°6510.510.54.5
Mar15° / 14°7610.911.74.5
Apr16° / 14°609.7134.8
May17° / 16°517.814.15.7
Jun19° / 18°386.114.66.7
Jul21° / 20°193.614.47.7
Aug22° / 21°275.213.57.7
Sep22° / 21°458.312.36.9
Oct20° / 19°8711.9116.0
Nov18° / 17°679.69.95.7
Dec17° / 15°11913.99.34.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% 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 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24357
34357
44357
54456
64456
74555
84654
94654
104654
114654
124654
134753
144654
154654
164654
174654
184654
194654
204654
214654
224753
234753
244753
254852
264852
274852
284852
294852
304753
314852

Chance of precipitation in May

Any precipitation

Angra do Heroísmo gets around 51 mm of rain over 7.8 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 25% and peaks near 31% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
130
231
331
431
531
631
731
831
930
1030
1129
1228
1328
1427
1526
1625
1724
1823
1922
2021
2121
2220
2320
2420
2520
2620
2720
2820
2921
3021
3121

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 49% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
164324
263325
364315
464315
563316
663316
762317
861327
960328
1058339
11573310
12553411
13543412
14523513
15513514
16493515
17483617
18463618
19453619
20433620
21423622
22413623
23403624
24383625
25373726
26363727
27353728
28343729
29333829
30323830
31303831

Wind in May

Winds average 25 km/h in May.

Across May, daily wind ranges from about 23 km/h on the calmest days to 26 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
126breezy
226breezy
326breezy
426breezy
526breezy
626breezy
725breezy
825breezy
925breezy
1025breezy
1125breezy
1225breezy
1325breezy
1425breezy
1525breezy
1624breezy
1724breezy
1824breezy
1924breezy
2024breezy
2124breezy
2224breezy
2324breezy
2424breezy
2524breezy
2624breezy
2724breezy
2824breezy
2923breezy
3023breezy
3123breezy

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 36 min at the start of May to 14 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 5:58 AM to 5:32 AM, and sunset from 7:34 PM to 8:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:587:34
213.65:577:35
313.75:567:36
413.75:557:37
513.75:547:38
613.85:527:39
713.85:517:40
813.85:507:41
913.95:497:42
1013.95:487:42
1113.95:477:43
1214.05:467:44
1314.05:457:45
1414.05:447:46
1514.15:437:47
1614.15:427:48
1714.15:417:49
1814.25:407:50
1914.25:407:51
2014.25:397:52
2114.25:387:52
2214.35:377:53
2314.35:377:54
2414.35:367:55
2514.35:357:56
2614.45:357:57
2714.45:347:57
2814.45:347:58
2914.45:337:59
3014.55:328:00
3114.55:328:01

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.14 kWh/m².

For context, solar energy here swings from a low near 1.75 kWh/m² to a high of 6.64 kWh/m² in July across the year — May's 6.14 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.9Bright
75.9Bright
85.9Bright
96.0Bright
106.0Intense
116.0Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.4Intense
286.4Intense
296.4Intense
306.4Intense
316.4Intense
Planning a trip in May

Hazard calendar for Angra do Heroísmo

In seasonPeak

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

Angra do Heroísmo sits in the Atlantic hurricane belt; the season peaks August–October.

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

Is May a good time to visit Angra do Heroísmo?

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

5.7
Sightseeing
6th-best month of the year
1.3
Beach & pool
7th-best month of the year

May is a reasonable time to visit Angra do Heroísmo for sightseeing.

What to pack for Angra do Heroísmo in May

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

In May, Angra do Heroísmo sees daytime highs around 17°C and nights near 16°C. Pack sun protection. Worth having: a warm layer and a windbreaker. About 8 days see rain.

sun protectiona warm layera windbreaker

Sea temperature near Angra do Heroísmo in May

The nearest coast averages about 17°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 23°C and coldest in March near 16°C.

It's comfortable for a long swim from Jun 29 to Oct 27 — about 4 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb16Cool
Mar16Cool
Apr16Cool
May17Cool
Jun19Cool
Jul21Refreshing
Aug23Refreshing
Sep22Refreshing
Oct21Refreshing
Nov19Cool
Dec17Cool

UV index in Angra do Heroísmo 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 Angra do Heroísmo peaks around August 10 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateAug 10UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb4Moderate
Mar5High
Apr6High
May9Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low
Location & terrain

Where is Angra do Heroísmo?

Angra do Heroísmo sits at 38.7°N, 27.2°W, 0 m above sea level, in Portugal. The nearest listed city is Ponta Delgada, 169 km away.

Ponta DelgadaCâmara de LobosSanto AntónioFunchalSão MartinhoCaniço

Topography around Angra do Heroísmo

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

Within 3 km, the terrain around Angra do Heroísmo has significant variations in elevation — a maximum elevation change of 294 m around an average of 65 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,026 m; within 80 km, large variations in elevation — a maximum elevation change of 1,019 m.

The land around Angra do Heroísmo is covered by water (46%) and trees (21%) within 3 km, water (55%) and grassland (22%) within 16 km, and water (94%) within 80 km.

3 km
294 m
16 km
1,026 m
80 km
1,019 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Ponta Delgada 169 km · Câmara de Lobos 1,140 km · Santo António 1,142 km · Funchal 1,143 km · São Martinho 1,143 km · Caniço 1,150 km · Los Llanos de Aridane 1,404 km · Santa Cruz de la Palma 1,411 km

Portugal travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E / F
230 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$32,082
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
95%
of population, 2024
Homicide rate
0.7
per 100k, 2022
Road deaths
8.2
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 612
Religion
Catholic 68%not applicable 13%no religion 12%no response 2%

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 Angra do Heroísmo (38.6539°, -27.2184°, elevation 0 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).