Aveiro weather in October

In October, Aveiro sees average daytime highs of 20°C and overnight lows near 14°C, with 143 mm of rain across 12 wet days and about 10.9 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 19°C by the end. The sky is clear or mostly clear about 39% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 18 min by month's end. Set against the rest of the year, October is Aveiro's 9th-clearest and 11th-windiest month. For the whole year in context, see Aveiro's year-round climate.

Daytime high
20°
5th warmest
Overnight low
14°
8th coldest
Rainfall
143 mm
12 wet days
Daylight
10 h 54 min
6:53 AM – 5:47 PM
Cloud cover
52%
9th clearest
Wind
14 km/h
11th windiest
Solar energy
3.32 kWh/m²
Travel score
6.1
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 October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 21°C in the first days to 19°C by the end.

A typical October day in Aveiro reaches about 20°C in the afternoon and slips back to 14°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 24°C. Set against its neighbours, October runs about 3°C cooler than September and about 4°C warmer than November.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12215
22115
32115
42115
52115
62115
72115
82115
92115
102115
112115
122015
132015
142014
152014
162014
172014
182014
192014
202014
211914
221914
231914
241914
251914
261914
271914
281914
291913
301813
311813

Aveiro weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 2nd-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 47%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26238
36238
46139
56040
66040
75941
85941
95842
105743
115743
125545
135545
145446
155446
165347
175248
185248
195149
205149
215050
224951
234852
244753
254654
264555
274555
284456
294357
304357
314357

Chance of precipitation in October

Any precipitation

Aveiro gets around 143 mm of rain over 12 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 45% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
127
228
328
429
530
631
732
833
934
1035
1137
1238
1339
1441
1542
1643
1743
1844
1944
2044
2145
2245
2345
2445
2545
2645
2745
2845
2945
3045
3145

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 40% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12746261
22845251
32945241
43145241
53244231
63344221
73444211
83543201
93643191
103743191
113842181
123942181
134042181
144041171
154141171
164140181
174240181
184240181
194239180
204339180
214339180
224438180
234437180
244537180
254636180
264736180
274835170
284934170
295034160
305233150
315432140

Wind in October

Winds average 14 km/h in October.

Across October, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light 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 October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over October. Sunrise moves from 6:36 AM to 7:10 AM, and sunset from 6:11 PM to 5:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:366:11
211.56:376:09
311.56:386:07
411.46:406:06
511.46:416:04
611.36:426:02
711.36:436:01
811.36:445:59
911.26:455:58
1011.26:465:56
1111.16:475:54
1211.16:485:53
1311.06:495:51
1411.06:505:50
1510.96:525:48
1610.96:535:47
1710.96:545:45
1810.86:555:44
1910.86:565:42
2010.76:575:41
2110.76:585:39
2210.67:005:38
2310.67:015:36
2410.67:025:35
2510.57:035:34
2610.57:045:32
2710.47:055:31
2810.47:075:30
2910.37:085:29
3010.37:095:27
3110.37:105:26

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.32 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 — October's 3.32 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.1Bright
34.1Bright
44.0Bright
54.0Moderate
63.9Moderate
73.8Moderate
83.8Moderate
93.7Moderate
103.6Moderate
113.6Moderate
123.5Moderate
133.4Moderate
143.4Moderate
153.3Moderate
163.3Moderate
173.2Moderate
183.1Moderate
193.1Moderate
203.0Moderate
213.0Moderate
222.9Moderate
232.9Moderate
242.9Moderate
252.8Moderate
262.8Moderate
272.7Moderate
282.7Moderate
292.7Moderate
302.6Moderate
312.6Moderate
Planning a trip in October

Hazard calendar for Aveiro

In seasonPeak

In October, 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 October a good time to visit Aveiro?

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

6.1
Sightseeing
6th-best month of the year
3.2
Beach & pool
5th-best month of the year

October is a reasonable time to visit Aveiro for sightseeing.

What to pack for Aveiro in October

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

In October, Aveiro sees daytime highs around 20°C and nights near 14°C. Worth packing: rain gear. About 12 days see rain.

rain gear

Sea temperature near Aveiro in October

The nearest coast averages about 17°C in October — 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 October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 4 — 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 October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October 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
October 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).