Aveiro weather in April

In April, Aveiro sees average daytime highs of 17°C and overnight lows near 11°C, with 98 mm of rain across 10.9 wet days and about 13.1 hours of daylight. It is the 7th-warmest and 5th-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 38% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 42 min by month's end. Set against the rest of the year, April is Aveiro's 6th-clearest and 4th-windiest month. For the whole year in context, see Aveiro's year-round climate.

Daytime high
17°
7th warmest
Overnight low
11°
6th coldest
Rainfall
98 mm
10.9 wet days
Daylight
13 h 06 min
6:02 AM – 7:07 PM
Cloud cover
52%
6th clearest
Wind
16 km/h
4th windiest
Solar energy
5.54 kWh/m²
Travel score
5.7
out of 10

Aveiro is city seat of Aveiro municipality.

Air quality
Good
PM10 22.4 µg/m³ · 2019

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 17°C through the month.

A typical April day in Aveiro reaches about 17°C in the afternoon and slips back to 11°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 22°C. Set against its neighbours, April runs about 1°C warmer than March and about 2°C cooler than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
11711
21711
31711
41711
51711
61711
71711
81711
91711
101711
111711
121711
131711
141711
151711
161711
171711
181711
191812
201812
211812
221812
231812
241812
251812
261812
271812
281812
291812
301812

Aveiro weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan14° / 12812.19.43.8
Feb14° / 889.310.44.4
Mar16° / 10°959.911.75.3
Apr17° / 11°9810.913.15.7
May20° / 13°799.614.26.5
Jun22° / 16°26514.97.8
Jul24° / 17°122.714.68.8
Aug24° / 17°173.413.68.7
Sep23° / 16°51612.37.8
Oct20° / 14°1431210.96.1
Nov16° / 11°14512.79.74.9
Dec14° / 14112.29.14.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 17% of April, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15446
25347
35446
45446
55545
65545
75644
85644
95743
105743
115743
125743
135545
145545
155644
165545
175545
185545
195446
205446
215446
225347
235347
245446
255446
265545
275545
285644
295644
305743

Chance of precipitation in April

Any precipitation

Aveiro gets around 98 mm of rain over 10.9 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 36% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
137
236
336
436
535
635
735
834
934
1035
1135
1235
1336
1436
1537
1637
1738
1838
1938
2038
2138
2238
2338
2438
2537
2636
2736
2835
2934
3034

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19550
29460
39460
49460
59370
69370
79370
89370
99370
109370
119280
129280
139280
149280
159280
169190
179190
189190
1990100
2089110
2189110
2288120
2386131
2485141
2585141
2684151
2783161
2882171
2981181
3080191

Wind in April

Winds average 16 km/h in April.

Across April, 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.

05101520151015202530
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
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over April. Sunrise moves from 6:27 AM to 5:42 AM, and sunset from 6:51 PM to 7:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:276:51
212.46:256:52
312.56:246:53
412.56:226:55
512.66:206:56
612.66:196:57
712.76:176:58
812.76:156:59
912.86:147:00
1012.86:127:01
1112.96:107:02
1212.96:097:03
1312.96:077:04
1413.06:067:05
1513.06:047:06
1613.16:027:07
1713.16:017:08
1813.25:597:09
1913.25:587:10
2013.35:567:11
2113.35:557:13
2213.35:537:14
2313.45:527:15
2413.45:507:16
2513.55:497:17
2613.55:477:18
2713.55:467:19
2813.65:457:20
2913.65:437:21
3013.75:427:22

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.54 kWh/m².

For context, solar energy here swings from a low near 1.76 kWh/m² to a high of 7.32 kWh/m² in July across the year — April's 5.54 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.1Bright
45.1Bright
55.2Bright
65.2Bright
75.2Bright
85.3Bright
95.3Bright
105.4Bright
115.4Bright
125.4Bright
135.5Bright
145.5Bright
155.5Bright
165.6Bright
175.6Bright
185.6Bright
195.7Bright
205.7Bright
215.7Bright
225.8Bright
235.8Bright
245.8Bright
255.9Bright
265.9Bright
275.9Bright
286.0Bright
296.0Intense
306.0Intense
Planning a trip in April

Hazard calendar for Aveiro

In seasonPeak

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

Aveiro'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 April a good time to visit Aveiro?

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

5.7
Sightseeing
7th-best month of the year
1.6
Beach & pool
7th-best month of the year

April is a reasonable time to visit Aveiro for sightseeing.

What to pack for Aveiro in April

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

In April, Aveiro sees daytime highs around 17°C and nights near 11°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Aveiro in April

The nearest coast averages about 15°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 19 km away) is warmest in August at about 18°C and coldest in February near 14°C.

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

12°14°16°18°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan14Bracing
Feb14Bracing
Mar14Bracing
Apr15Bracing
May16Cool
Jun17Cool
Jul18Cool
Aug18Cool
Sep18Cool
Oct17Cool
Nov16Cool
Dec15Bracing

UV index in Aveiro in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Aveiro peaks around July 11 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 11UV 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 Aveiro in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Aveiro is worst in October — around 19 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 1119 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar11Good
Apr10Good
May8Good
Jun12Good
Jul8Good
Aug14Moderate
Sep17Moderate
Oct19Moderate
Nov7Good
Dec7Good
Location & terrain

Where is Aveiro?

Aveiro sits at 40.6°N, 8.6°W, 19 m above sea level, in Portugal. The nearest listed city is Vilar, 2.0 km away.

Topography around Aveiro

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

Within 3 km, the terrain around Aveiro has only modest variations in elevation — a maximum elevation change of 55 m around an average of 12 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 179 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,365 m.

The land around Aveiro is covered by water (37%) and artificial surfaces (31%) within 3 km, trees (31%) and water (29%) within 16 km, and trees (45%), water (26%) and grassland (20%) within 80 km.

3 km
55 m
16 km
179 m
80 km
1,365 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
April weather nearby: Vilar 2.0 km · Ílhavo 5.0 km · Ovar 24 km · São João da Madeira 31 km · Feira 32 km · Espinho 40 km · Arouca 46 km · Eiras 48 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 Aveiro (40.6457°, -8.6464°, elevation 19 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).