Matosinhos weather in May

In May, Matosinhos sees average daytime highs of 18°C and overnight lows near 14°C, with 90 mm of rain across 10.4 wet days and about 14.3 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 19°C by the end. The sky is clear or mostly clear about 42% 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 Matosinhos's 5th-clearest and 8th-windiest month. For the whole year in context, see Matosinhos's year-round climate.

Daytime high
18°
6th warmest
Overnight low
14°
7th coldest
Rainfall
90 mm
10.4 wet days
Daylight
14 h 18 min
5:22 AM – 7:40 PM
Cloud cover
48%
5th clearest
Wind
16 km/h
8th windiest
Solar energy
6.55 kWh/m²
Travel score
6.1
out of 10

Matosinhos is city seat of Matosinhos municipality.

Air quality
Good
PM10 17 µg/m³ · 2019

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 17°C in the first days to 19°C by the end.

A typical May day in Matosinhos reaches about 18°C in the afternoon and slips back to 14°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 23°C. Set against its neighbours, May runs about 2°C warmer than April and about 2°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11713
21713
31713
41713
51713
61713
71813
81813
91813
101813
111814
121814
131814
141814
151814
161814
171814
181914
191914
201914
211914
221915
231915
241915
251915
261915
271915
281915
292015
302015
312015

Matosinhos weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan13° / 13312.39.43.5
Feb14° / 919.310.33.9
Mar15° / 11°10610.211.74.7
Apr16° / 12°10711.213.15.1
May18° / 14°9010.414.36.1
Jun21° / 16°315.514.97.4
Jul22° / 18°183.414.78.4
Aug23° / 18°223.813.68.4
Sep22° / 17°546.312.37.4
Oct19° / 15°14812.510.95.9
Nov16° / 12°15613.39.74.6
Dec14° / 10°15112.89.13.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25743
35743
45743
55743
65743
75743
85743
95842
105842
115842
125842
135842
145941
155941
166040
176040
186139
196139
206139
216337
226337
236337
246436
256337
266337
276337
286337
296337
306337
316337

Chance of precipitation in May

Any precipitation

Matosinhos gets around 90 mm of rain over 10.4 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 36% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
335
435
535
636
736
836
936
1036
1136
1236
1336
1436
1535
1635
1734
1834
1933
2033
2132
2232
2331
2431
2530
2629
2729
2828
2928
3027
3127

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 55% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1742420
2732520
3712630
4702730
5692830
6682930
7673030
8653140
9643240
10633340
11623440
12623440
13603550
14593650
15583750
16563860
17563860
18543970
19534070
20504181
21494281
22474391
234544101
244345101
254147111
264048111
273849121
283651121
293550132
303452131
313352141

Wind in May

Winds average 16 km/h in May.

Across May, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

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 5:40 AM to 5:11 AM, and sunset from 7:24 PM to 7:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:407:24
213.85:387:25
313.85:377:26
413.95:367:27
513.95:347:29
613.95:337:30
714.05:327:31
814.05:317:32
914.15:307:33
1014.15:287:34
1114.15:277:35
1214.25:267:36
1314.25:257:37
1414.25:247:38
1514.35:237:39
1614.35:227:40
1714.35:217:41
1814.45:207:42
1914.45:197:43
2014.45:187:44
2114.55:177:45
2214.55:177:46
2314.55:167:47
2414.55:157:48
2514.65:147:49
2614.65:147:49
2714.65:137:50
2814.65:127:51
2914.75:127:52
3014.75:117:53
3114.75:117:54

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.55 kWh/m².

For context, solar energy here swings from a low near 1.68 kWh/m² to a high of 7.33 kWh/m² in July across the year — May's 6.55 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.2Intense
56.2Intense
66.2Intense
76.2Intense
86.3Intense
96.3Intense
106.3Intense
116.4Intense
126.4Intense
136.4Intense
146.5Intense
156.5Intense
166.5Intense
176.6Intense
186.6Intense
196.6Intense
206.7Intense
216.7Intense
226.7Intense
236.8Intense
246.8Intense
256.8Intense
266.8Intense
276.9Intense
286.9Intense
296.9Intense
306.9Intense
316.9Intense
Planning a trip in May

Hazard calendar for Matosinhos

In seasonPeak

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

Matosinhos'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 Matosinhos?

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
2.3
Beach & pool
6th-best month of the year

May is a reasonable time to visit Matosinhos for sightseeing.

What to pack for Matosinhos in May

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

In May, Matosinhos sees daytime highs around 18°C and nights near 14°C. Pack sun protection. Worth having: rain gear. About 10 days see rain.

sun protectionrain gear

Sea temperature near Matosinhos 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 offshore 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 Matosinhos 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 Matosinhos peaks around June 23 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 23UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7High
Jun9Very high
Jul9Very high
Aug8Very high
Sep5High
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Matosinhos 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 Matosinhos is worst in September — around 19 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodSep 1318 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar12Moderate
Apr11Good
May9Good
Jun9Good
Jul8Good
Aug16Moderate
Sep19Moderate
Oct13Moderate
Nov7Good
Dec7Good
Location & terrain

Where is Matosinhos?

Matosinhos sits at 41.2°N, 8.7°W, 17 m above sea level, in Portugal. The nearest listed city is Leça da Palmeira, 1.0 km away.

Topography around Matosinhos

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

Within 3 km, the terrain around Matosinhos has only modest variations in elevation — a maximum elevation change of 92 m around an average of 25 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 343 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,422 m.

The land around Matosinhos is covered by artificial surfaces (44%) and water (35%) within 3 km, water (48%) and artificial surfaces (22%) within 16 km, and trees (41%), water (28%) and grassland (22%) within 80 km.

3 km
92 m
16 km
343 m
80 km
1,422 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Leça da Palmeira 1.0 km · Aldoar 2.0 km · Senhora da Hora 3.0 km · Lordelo do Ouro 5.0 km · São Tiago de Custoias 5.0 km · Afurada de Baixo 6.0 km · Leça do Bailio 6.0 km · São Mamede de Infesta 7.0 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 Matosinhos (41.1821°, -8.6891°, elevation 17 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).