Arouca weather in October

In October, Arouca sees average daytime highs of 19°C and overnight lows near 11°C, with 197 mm of rain across 13.4 wet days and about 10.9 hours of daylight. It is the 6th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 17°C by the end. The sky is clear or mostly clear about 31% 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 Arouca's 7th-clearest and 7th-windiest month. For the whole year in context, see Arouca's year-round climate.

Daytime high
19°
6th warmest
Overnight low
11°
8th coldest
Rainfall
197 mm
13.4 wet days
Daylight
10 h 54 min
6:51 AM – 5:45 PM
Cloud cover
58%
7th clearest
Wind
9 km/h
7th windiest
Solar energy
3.17 kWh/m²
Travel score
5.7
out of 10

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 17°C by the end.

A typical October day in Arouca reaches about 19°C in the afternoon and slips back to 11°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 24°C. Set against its neighbours, October runs about 4°C cooler than September and about 5°C warmer than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12112
22112
32112
42112
52112
62112
72011
82011
92011
102011
112011
122011
131911
141911
151911
161911
171911
181911
191911
201810
211810
221810
231810
241810
251810
261810
271710
281710
291710
30179
31179

Arouca weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan11° / 18212.59.42.7
Feb13° / 1249.910.43.5
Mar16° / 14211.711.74.6
Apr17° / 14813.713.15.0
May20° / 10°12913.114.35.9
Jun23° / 13°567.914.97.3
Jul26° / 15°30514.68.1
Aug26° / 15°385.313.67.9
Sep23° / 13°838.212.37.3
Oct19° / 11°19713.410.95.7
Nov14° / 18313.19.73.9
Dec12° / 19712.59.12.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% 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 55%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25743
35743
45644
55545
65446
75446
85347
95248
105149
115050
124852
134753
144654
154555
164456
174258
184258
194258
204159
213961
223961
233862
243763
253763
263664
273664
283664
293565
303565
313565

Chance of precipitation in October

Any precipitation

Arouca gets around 197 mm of rain over 13.4 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 44% and peaks near 49% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
133
233
334
435
535
636
737
838
940
1041
1142
1243
1344
1445
1546
1647
1748
1848
1948
2049
2149
2248
2348
2448
2548
2648
2748
2848
2948
3047
3147

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 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
165305
266295
366286
467276
567276
669265
770255
871245
971245
1072235
1172235
1273225
1373225
1473225
1573225
1673225
1774224
1874224
1974224
2074224
2174224
2274224
2375223
2475223
2575223
2675223
2776213
2877212
2978202
3079192
3180182

Wind in October

Winds average 9 km/h in October.

Across October, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 6:35 AM to 7:09 AM, and sunset from 6:09 PM to 5:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:356:09
211.56:366:07
311.56:376:06
411.46:386:04
511.46:396:02
611.36:406:01
711.36:415:59
811.26:425:57
911.26:445:56
1011.26:455:54
1111.16:465:52
1211.16:475:51
1311.06:485:49
1411.06:495:48
1510.96:505:46
1610.96:515:45
1710.86:535:43
1810.86:545:42
1910.86:555:40
2010.76:565:39
2110.76:575:37
2210.66:585:36
2310.66:595:34
2410.57:015:33
2510.57:025:32
2610.57:035:30
2710.47:045:29
2810.47:055:28
2910.37:075:27
3010.37:085:25
3110.37:095:24

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.17 kWh/m².

For context, solar energy here swings from a low near 1.65 kWh/m² to a high of 7.22 kWh/m² in July across the year — October's 3.17 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.0Bright
24.0Moderate
33.9Moderate
43.9Moderate
53.8Moderate
63.8Moderate
73.7Moderate
83.6Moderate
93.6Moderate
103.5Moderate
113.4Moderate
123.4Moderate
133.3Moderate
143.2Moderate
153.2Moderate
163.1Moderate
173.0Moderate
183.0Moderate
192.9Moderate
202.9Moderate
212.8Moderate
222.8Moderate
232.7Moderate
242.7Moderate
252.7Moderate
262.6Moderate
272.6Moderate
282.5Moderate
292.5Moderate
302.5Moderate
312.4Moderate
Planning a trip in October

Hazard calendar for Arouca

In seasonPeak

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

Arouca'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 Arouca?

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

5.7
Sightseeing
6th-best month of the year
2.5
Beach & pool
6th-best month of the year

October is a reasonable time to visit Arouca for sightseeing.

What to pack for Arouca in October

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

In October, Arouca sees daytime highs around 19°C and nights near 11°C. Worth packing: rain gear. About 13 days see rain.

rain gear

Sea temperature near Arouca 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 39 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 Arouca in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Arouca peaks around July 12 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 12UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5High
Apr6High
May7High
Jun9Very high
Jul9Very high
Aug8Very high
Sep5High
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Arouca 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 Arouca 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 Arouca?

Arouca sits at 40.9°N, 8.2°W, 313 m above sea level, in Portugal. The nearest listed city is São João da Madeira, 21 km away.

Topography around Arouca

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

Within 3 km, the terrain around Arouca has significant variations in elevation — a maximum elevation change of 542 m around an average of 452 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,202 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,714 m.

The land around Arouca is covered by trees (65%) and grassland (27%) within 3 km, trees (62%) and grassland (34%) within 16 km, and trees (42%) and grassland (33%) within 80 km.

3 km
542 m
16 km
1,202 m
80 km
1,714 m
treesshrubsgrasslandcroplandartificial surfaceswater
October weather nearby: São João da Madeira 21 km · Feira 25 km · Baião 31 km · Paredes 31 km · São Pedro da Cova 32 km · Ovar 33 km · Gondomar 34 km · Espinho 34 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 Arouca (40.9306°, -8.2449°, elevation 313 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).