Alcobaça weather in May

In May, Alcobaça sees average daytime highs of 27°C and overnight lows near 23°C, with 80 mm of rain across 14 wet days and about 11.2 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 40% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 24 min at the start of May to 11 hours by month's end. Set against the rest of the year, May is Alcobaça's 6th-clearest and 8th-windiest month. For the whole year in context, see Alcobaça's year-round climate.

Daytime high
27°
7th warmest
Overnight low
23°
6th coldest
Rainfall
80 mm
14 wet days
Daylight
11 h 12 min
5:58 AM – 5:08 PM
Cloud cover
51%
6th clearest
Wind
13 km/h
8th windiest
Solar energy
3.93 kWh/m²
Travel score
6.1
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical May day in Alcobaça reaches about 27°C in the afternoon and slips back to 23°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 28°C. Set against its neighbours, May runs about 1°C cooler than April and about 1°C warmer than June.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12723
22723
32723
42723
52723
62723
72723
82723
92723
102723
112723
122723
132723
142723
152723
162722
172722
182722
192722
202722
212622
222622
232622
242622
252622
262622
272622
282622
292622
302622
312622

How May really feels in Alcobaça

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.

Alcobaça weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 24°7211.712.95.6
Feb29° / 24°5611.312.65.3
Mar29° / 24°11916.912.14.9
Apr28° / 24°9216.711.65.3
May27° / 23°801411.26.1
Jun26° / 21°5712.6116.5
Jul25° / 21°5313.911.16.6
Aug25° / 21°4210.311.47.0
Sep26° / 22°4810.111.96.9
Oct26° / 23°9912.812.46.3
Nov27° / 23°1581512.85.6
Dec28° / 24°11112.8135.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% 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 35%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
26931
36832
46832
56832
66733
76634
86634
96535
106436
116337
126238
136238
146139
156139
166040
176040
186040
196040
206238
216238
226238
236436
246535
256634
266634
276832
286832
297030
307030
317030

Chance of precipitation in May

Any precipitation

Alcobaça gets around 80 mm of rain over 14 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 45% and peaks near 51% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
151
250
349
448
547
647
746
846
945
1045
1144
1244
1344
1444
1544
1644
1744
1844
1945
2045
2145
2245
2344
2444
2544
2643
2743
2843
2943
3043
3142

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 91% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1043066
2043165
3043363
4053560
5053659
6163756
7163855
8173953
9173953
10174052
11084052
12084052
13094051
14094150
15094149
16094149
17094149
180104149
190104149
200104249
21094248
22094248
230104347
240104447
250104446
260104545
270104544
280104644
290114643
300114742
310124840

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 13 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
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 24 min at the start of May to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over May. Sunrise moves from 5:53 AM to 6:03 AM, and sunset from 5:15 PM to 5:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.45:535:15
211.45:535:15
311.35:535:14
411.35:545:14
511.35:545:13
611.35:545:13
711.35:555:12
811.35:555:12
911.35:555:11
1011.35:565:11
1111.25:565:10
1211.25:565:10
1311.25:575:10
1411.25:575:09
1511.25:575:09
1611.25:585:08
1711.25:585:08
1811.25:585:08
1911.15:595:08
2011.15:595:07
2111.15:595:07
2211.16:005:07
2311.16:005:07
2411.16:005:06
2511.16:015:06
2611.16:015:06
2711.16:025:06
2811.16:025:06
2911.16:025:06
3011.06:035:05
3111.06:035:05

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.93 kWh/m².

For context, solar energy here swings from a low near 3.63 kWh/m² to a high of 6.42 kWh/m² in January across the year — May's 3.93 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.3Bright
44.2Bright
54.2Bright
64.2Bright
74.2Bright
84.1Bright
94.1Bright
104.1Bright
114.0Bright
124.0Bright
134.0Moderate
144.0Moderate
153.9Moderate
163.9Moderate
173.9Moderate
183.9Moderate
193.8Moderate
203.8Moderate
213.8Moderate
223.8Moderate
233.8Moderate
243.8Moderate
253.7Moderate
263.7Moderate
273.7Moderate
283.7Moderate
293.7Moderate
303.7Moderate
313.7Moderate
Planning a trip in May

Is May a good time to visit Alcobaça?

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

6.1
Sightseeing
6th-best month of the year
6.1
Beach & pool
8th-best month of the year

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

What to pack for Alcobaça in May

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

In May, Alcobaça sees daytime highs around 27°C and nights near 23°C. Pack rain gear. Worth having: light clothes. About 14 days see rain.

rain gearlight clothes

Sea temperature near Alcobaça 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 14 km away) is warmest in April at about 27°C and coldest in August near 24°C.

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

22°24°26°28°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb27Warm
Mar27Warm
Apr27Warm
May26Warm
Jun25Warm
Jul25Warm
Aug24Warm
Sep25Warm
Oct25Warm
Nov26Warm
Dec26Warm

UV index in Alcobaça in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Alcobaça peaks around February 14 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 highExtremeFeb 14UV 14Jun 21UV 7
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun7High
Jul7Very high
Aug9Very high
Sep10Extreme
Oct12Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Alcobaça?

Alcobaça sits at 17.5°S, 39.2°W, 5 m above sea level, in Brazil. The nearest listed city is Prado, 20 km away.

Topography around Alcobaça

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

Within 3 km, the terrain around Alcobaça has only modest variations in elevation — a maximum elevation change of 21 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 72 m; within 80 km, significant variations in elevation — a maximum elevation change of 592 m.

The land around Alcobaça is covered by water (43%) within 3 km, water (48%), trees (25%) and grassland (21%) within 16 km, and water (46%), trees (29%) and grassland (23%) within 80 km.

3 km
21 m
16 km
72 m
80 km
592 m
treesshrubsgrasslandartificial surfacesbare terrainwaterwetlandmangroves
May weather nearby: Prado 20 km · Nova Viçosa 45 km · Teixeira de Freitas 58 km · Itamaraju 64 km · Mucuri 73 km · Posto da Mata 81 km · Medeiros Neto 110 km · Itabela 112 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 Alcobaça (-17.5194°, -39.1956°, elevation 5 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).