Baião weather in May

In May, Baião sees average daytime highs of 19°C and overnight lows near 10°C, with 98 mm of rain across 11.8 wet days and about 14.3 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 18°C in the first days to 21°C by the end. The sky is clear or mostly clear about 30% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of May to 14 h 42 min by month's end. Set against the rest of the year, May is Baião's 5th-clearest and 7th-windiest month. For the whole year in context, see Baião's year-round climate.

Daytime high
19°
5th warmest
Overnight low
10°
7th coldest
Rainfall
98 mm
11.8 wet days
Daylight
14 h 18 min
5:19 AM – 7:37 PM
Cloud cover
56%
5th clearest
Wind
8 km/h
7th windiest
Solar energy
6.07 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 18°C in the first days to 21°C by the end.

A typical May day in Baião reaches about 19°C in the afternoon and slips back to 10°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 26°C. Set against its neighbours, May runs about 3°C warmer than April and about 4°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1188
2188
3188
4188
5189
6189
7189
8189
9199
10199
11199
12199
13199
141910
151910
161910
172010
182010
192010
202010
212010
222010
232011
242111
252111
262111
272111
282111
292111
302111
312111

Baião weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan11° / 15211.99.42.4
Feb12° / 1029.110.43.3
Mar15° / 11710.811.74.5
Apr16° / 11812.513.14.9
May19° / 10°9811.814.36.0
Jun23° / 13°427.114.97.5
Jul26° / 14°244.214.78.2
Aug26° / 15°304.713.68.0
Sep23° / 13°64712.37.5
Oct19° / 10°15912.410.95.6
Nov14° / 15012.69.73.7
Dec11° / 16312.19.12.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% 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 53%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24258
34258
44258
54258
64258
74258
84258
94357
104456
114456
124357
134456
144456
154555
164654
174753
184852
194852
204951
215050
225050
235149
245248
255248
265248
275347
285347
295347
305347
315347

Chance of precipitation in May

Any precipitation

Baião gets around 98 mm of rain over 11.8 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 38% and peaks near 41% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
239
339
440
540
640
741
841
941
1041
1141
1241
1341
1440
1540
1639
1739
1838
1938
2037
2137
2236
2336
2435
2535
2634
2734
2834
2933
3033
3132

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 86% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19640
29640
39550
49460
59460
69370
79280
89280
99190
109190
1190100
1290100
1389110
1489110
1588120
1688120
1787130
1887130
1985141
2084151
2184151
2283161
2381172
2480182
2579192
2678202
2777212
2877212
2976222
3075232
3174242

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 8 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
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
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 13 h 42 min at the start of May to 14 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over May. Sunrise moves from 5:37 AM to 5:08 AM, and sunset from 7:22 PM to 7:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:377:22
213.85:367:23
313.85:347:24
413.95:337:25
513.95:327:26
613.95:317:27
714.05:297:28
814.05:287:29
914.15:277:30
1014.15:267:31
1114.15:257:32
1214.25:247:33
1314.25:237:34
1414.25:217:35
1514.35:207:36
1614.35:197:37
1714.35:187:38
1814.45:187:39
1914.45:177:40
2014.45:167:41
2114.55:157:42
2214.55:147:43
2314.55:137:44
2414.55:137:45
2514.65:127:46
2614.65:117:47
2714.65:107:48
2814.65:107:49
2914.75:097:49
3014.75:097:50
3114.75:087:51

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.07 kWh/m².

For context, solar energy here swings from a low near 1.58 kWh/m² to a high of 7.21 kWh/m² in July across the year — May's 6.07 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.7Bright
55.7Bright
65.7Bright
75.8Bright
85.8Bright
95.8Bright
105.9Bright
115.9Bright
125.9Bright
136.0Bright
146.0Intense
156.0Intense
166.1Intense
176.1Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.4Intense
276.4Intense
286.4Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in May

Hazard calendar for Baião

In seasonPeak

In May, Baião sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Baião's rainy season runs October–May, 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 Baião?

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

6.0
Sightseeing
5th-best month of the year
2.9
Beach & pool
5th-best month of the year

May is a reasonable time to visit Baião for sightseeing.

What to pack for Baião in May

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

In May, Baião sees daytime highs around 19°C and nights near 10°C. Pack sun protection. Worth having: rain gear. About 12 days see rain.

sun protectionrain gear

Sea temperature near Baião in May

The nearest coast averages about 16°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 50 km away) is warmest in September at about 17°C and coldest in February near 13°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

12°14°16°18°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr14Bracing
May16Cool
Jun17Cool
Jul17Cool
Aug17Cool
Sep17Cool
Oct17Cool
Nov16Cool
Dec14Bracing

UV index in Baião in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Baião peaks around July 13 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 13UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5High
Apr7High
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Baião 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 Baião is worst in August — around 25 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodAug 2425 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar14Moderate
Apr12Moderate
May8Good
Jun9Good
Jul9Good
Aug25Moderate
Sep24Moderate
Oct18Moderate
Nov7Good
Dec7Good
Location & terrain

Where is Baião?

Baião sits at 41.2°N, 8.0°W, 577 m above sea level, in Portugal. The nearest listed city is Paredes, 25 km away.

Topography around Baião

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

Within 3 km, the terrain around Baião has significant variations in elevation — a maximum elevation change of 556 m around an average of 645 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,395 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,521 m.

The land around Baião is covered by trees (48%) and grassland (47%) within 3 km, grassland (50%) and trees (44%) within 16 km, and trees (41%) and grassland (39%) within 80 km.

3 km
556 m
16 km
1,395 m
80 km
1,521 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Paredes 25 km · Felgueiras 26 km · Vila Real 29 km · Arouca 31 km · Fafe 34 km · Guimarães 38 km · Valongo 39 km · São Pedro da Cova 39 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 Baião (41.1627°, -8.0347°, elevation 577 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).