Custoias weather in October

In October, Custoias sees average daytime highs of 19°C and overnight lows near 10°C, with 83 mm of rain across 9.3 wet days and about 10.9 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 17°C by the end. The sky is clear or mostly clear about 32% 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 12 min by month's end. Set against the rest of the year, October is Custoias's 7th-clearest and 6th-windiest month. For the whole year in context, see Custoias's year-round climate.

Daytime high: 19°; 6th warmest
Overnight low: 10°; 8th coldest
Rainfall: 83 mm; 9.3 wet days
Daylight: 10 h 54 min; 6:48 AM – 5:41 PM
Cloud cover: 57%; 7th clearest
Wind: 9 km/h; 6th windiest
Solar energy: 3.21 kWh/m²
Travel score: 6.3; out of 10

Custoias is human settlement in Portugal.

Air quality: Good; PM10 27.6 µg/m³ · 2010

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

← September Custoias year-round climate November →Best places to visit in October

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 22°C in the first days to 17°C by the end.

A typical October day in Custoias reaches about 19°C in the afternoon and slips back to 10°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 24°C. Set against its neighbours, October runs about 6°C cooler than September and about 6°C warmer than November.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	22	22	22	22	21	21	21	21	21	20	20	20	20	20	19	19	19	19	19	18	18	18	18	18	18	17	17	17	17	17	16
Avg low (°C)	11	11	11	11	11	11	11	11	11	11	10	10	10	10	10	10	10	10	10	10	10	9	9	9	9	9	9	9	9	9	8

	Avg high (°C)	Avg low (°C)
1	22	11
2	22	11
3	22	11
4	22	11
5	21	11
6	21	11
7	21	11
8	21	11
9	21	11
10	20	11
11	20	10
12	20	10
13	20	10
14	20	10
15	19	10
16	19	10
17	19	10
18	19	10
19	19	10
20	18	10
21	18	10
22	18	9
23	18	9
24	18	9
25	18	9
26	17	9
27	17	9
28	17	9
29	17	9
30	17	9
31	16	8

Custoias weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	10° / 3°	62	8.7	9.4	2.3
Feb	12° / 3°	43	6.6	10.4	3.5
Mar	15° / 5°	49	7.9	11.7	4.9
Apr	17° / 7°	54	9.8	13.1	5.6
May	21° / 10°	49	9.2	14.3	6.7
Jun	26° / 13°	20	4.8	14.9	7.8
Jul	29° / 15°	12	2.6	14.7	7.1
Aug	29° / 15°	13	3.4	13.6	7.1
Sep	25° / 13°	34	4.6	12.3	7.9
Oct	19° / 10°	83	9.3	10.9	6.3
Nov	13° / 6°	69	9.2	9.7	3.9
Dec	10° / 4°	68	8.3	9.1	2.5

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 53%. Skies tend to cloud over as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	60	59	59	58	57	56	55	54	53	52	51	50	49	47	47	46	45	44	42	43	42	41	41	40	39	39	40	39	39	37	38
Cloudier (%)	40	41	41	42	43	44	45	46	47	48	49	50	51	53	53	54	55	56	58	57	58	59	59	60	61	61	60	61	61	63	62

	Clearer (%)	Cloudier (%)
1	60	40
2	59	41
3	59	41
4	58	42
5	57	43
6	56	44
7	55	45
8	54	46
9	53	47
10	52	48
11	51	49
12	50	50
13	49	51
14	47	53
15	47	53
16	46	54
17	45	55
18	44	56
19	42	58
20	43	57
21	42	58
22	41	59
23	41	59
24	40	60
25	39	61
26	39	61
27	40	60
28	39	61
29	39	61
30	37	63
31	38	62

Chance of precipitation in October

Any precipitation

Custoias gets around 83 mm of rain over 9.3 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 30% and peaks near 35% on the wettest days. The odds climb toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	20	21	21	22	23	24	25	26	27	28	29	30	31	32	33	34	34	35	35	35	35	35	35	34	34	34	33	33	32	32	32

	Rain chance (%)
1	20
2	21
3	21
4	22
5	23
6	24
7	25
8	26
9	27
10	28
11	29
12	30
13	31
14	32
15	33
16	34
17	34
18	35
19	35
20	35
21	35
22	35
23	35
24	34
25	34
26	34
27	33
28	33
29	32
30	32
31	32

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

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	82	81	81	82	82	83	83	83	84	84	85	85	85	85	86	86	86	86	87	87	87	87	87	88	88	88	89	89	90	90	91
Comfortable (%)	17	17	17	16	16	15	15	15	14	14	14	14	14	14	13	13	13	13	13	13	13	13	13	12	12	12	11	11	10	10	9
Humid (%)	1	2	2	2	2	2	2	2	2	2	1	1	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)	Humid (%)
1	82	17	1
2	81	17	2
3	81	17	2
4	82	16	2
5	82	16	2
6	83	15	2
7	83	15	2
8	83	15	2
9	84	14	2
10	84	14	2
11	85	14	1
12	85	14	1
13	85	14	1
14	85	14	1
15	86	13	1
16	86	13	1
17	86	13	1
18	86	13	1
19	87	13	0
20	87	13	0
21	87	13	0
22	87	13	0
23	87	13	0
24	88	12	0
25	88	12	0
26	88	12	0
27	89	11	0
28	89	11	0
29	90	10	0
30	90	10	0
31	91	9	0

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	8	8	8	8	8	8	8	8	8	8	8	8	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	8	calm
2	8	calm
3	8	calm
4	8	calm
5	8	calm
6	8	calm
7	8	calm
8	8	calm
9	8	calm
10	8	calm
11	8	calm
12	8	calm
13	9	calm
14	9	calm
15	9	calm
16	9	calm
17	9	calm
18	9	calm
19	9	calm
20	9	calm
21	9	calm
22	9	calm
23	9	calm
24	9	calm
25	9	calm
26	9	calm
27	9	calm
28	9	calm
29	9	calm
30	9	calm
31	9	calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over October. Sunrise moves from 6:31 AM to 7:06 AM, and sunset from 6:05 PM to 5:20 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	11.6	11.5	11.5	11.4	11.4	11.3	11.3	11.2	11.2	11.2	11.1	11.1	11.0	11.0	10.9	10.9	10.8	10.8	10.7	10.7	10.7	10.6	10.6	10.5	10.5	10.4	10.4	10.4	10.3	10.3	10.2
Sunrise (AM)	6:31	6:32	6:33	6:35	6:36	6:37	6:38	6:39	6:40	6:41	6:42	6:43	6:44	6:46	6:47	6:48	6:49	6:50	6:51	6:53	6:54	6:55	6:56	6:57	6:58	7:00	7:01	7:02	7:03	7:04	7:06
Sunset (PM)	6:05	6:04	6:02	6:00	5:58	5:57	5:55	5:53	5:52	5:50	5:49	5:47	5:45	5:44	5:42	5:41	5:39	5:38	5:36	5:35	5:33	5:32	5:30	5:29	5:28	5:26	5:25	5:24	5:23	5:21	5:20

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.6	6:31	6:05
2	11.5	6:32	6:04
3	11.5	6:33	6:02
4	11.4	6:35	6:00
5	11.4	6:36	5:58
6	11.3	6:37	5:57
7	11.3	6:38	5:55
8	11.2	6:39	5:53
9	11.2	6:40	5:52
10	11.2	6:41	5:50
11	11.1	6:42	5:49
12	11.1	6:43	5:47
13	11.0	6:44	5:45
14	11.0	6:46	5:44
15	10.9	6:47	5:42
16	10.9	6:48	5:41
17	10.8	6:49	5:39
18	10.8	6:50	5:38
19	10.7	6:51	5:36
20	10.7	6:53	5:35
21	10.7	6:54	5:33
22	10.6	6:55	5:32
23	10.6	6:56	5:30
24	10.5	6:57	5:29
25	10.5	6:58	5:28
26	10.4	7:00	5:26
27	10.4	7:01	5:25
28	10.4	7:02	5:24
29	10.3	7:03	5:23
30	10.3	7:04	5:21
31	10.2	7:06	5:20

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.21 kWh/m².

For context, solar energy here swings from a low near 1.57 kWh/m² to a high of 7.49 kWh/m² in July across the year — October's 3.21 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	4.1	4.0	4.0	3.9	3.9	3.8	3.8	3.7	3.6	3.5	3.5	3.4	3.3	3.3	3.2	3.1	3.1	3.0	3.0	2.9	2.9	2.8	2.8	2.7	2.7	2.6	2.6	2.6	2.5	2.5	2.5
Level	Bright	Bright	Bright	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	4.1	Bright
2	4.0	Bright
3	4.0	Bright
4	3.9	Moderate
5	3.9	Moderate
6	3.8	Moderate
7	3.8	Moderate
8	3.7	Moderate
9	3.6	Moderate
10	3.5	Moderate
11	3.5	Moderate
12	3.4	Moderate
13	3.3	Moderate
14	3.3	Moderate
15	3.2	Moderate
16	3.1	Moderate
17	3.1	Moderate
18	3.0	Moderate
19	3.0	Moderate
20	2.9	Moderate
21	2.9	Moderate
22	2.8	Moderate
23	2.8	Moderate
24	2.7	Moderate
25	2.7	Moderate
26	2.6	Moderate
27	2.6	Moderate
28	2.6	Moderate
29	2.5	Moderate
30	2.5	Moderate
31	2.5	Moderate

Planning a trip in October

Is October a good time to visit Custoias?

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

6.3

Sightseeing

6th-best month of the year

2.9

Beach & pool

6th-best month of the year

October is a reasonable time to visit Custoias for sightseeing.

What to pack for Custoias in October

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

In October, Custoias sees daytime highs around 19°C and nights near 10°C. Worth packing: rain gear. About 9 days see rain.

rain gear

UV index in Custoias 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 Custoias 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	3	5	6	7	9	9	9	6	5	2	2
Level	Low	Moderate	High	High	High	Very high	Very high	Very high	High	Moderate	Moderate	Low

	UV index (midday)	Level
Jan	2	Low
Feb	3	Moderate
Mar	5	High
Apr	6	High
May	7	High
Jun	9	Very high
Jul	9	Very high
Aug	9	Very high
Sep	6	High
Oct	5	Moderate
Nov	2	Moderate
Dec	2	Low

Air quality in Custoias 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 Custoias is worst in August — around 22 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (November, 7 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	10	10	13	11	8	9	12	22	18	13	7	7
Level	Good	Good	Moderate	Good	Good	Good	Good	Moderate	Moderate	Moderate	Good	Good

	PM2.5 (µg/m³)	Level
Jan	10	Good
Feb	10	Good
Mar	13	Moderate
Apr	11	Good
May	8	Good
Jun	9	Good
Jul	12	Good
Aug	22	Moderate
Sep	18	Moderate
Oct	13	Moderate
Nov	7	Good
Dec	7	Good

Location & terrain

Where is Custoias?

Custoias sits at 41.1°N, 7.3°W, 569 m above sea level, in Portugal. The nearest listed city is Vila Nova de Foz Côa, 15 km away.

Topography around Custoias

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

Within 3 km, the terrain around Custoias has large variations in elevation — a maximum elevation change of 671 m around an average of 479 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 921 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,573 m.

The land around Custoias is covered by shrubs (40%), grassland (30%) and trees (29%) within 3 km, grassland (44%), trees (26%) and shrubs (23%) within 16 km, and grassland (58%) and trees (30%) within 80 km.

3 km

671 m

shrubs 40%

16 km

921 m

grassland 44%

80 km

1,573 m

grassland 58%

treesshrubsgrasslandcroplandartificial surfaceswater

← September Custoias year-round climate November →Best places to visit in October

October weather nearby: Vila Nova de Foz Côa 15 km · Vila Real 41 km · Baião 60 km · Sequeira 62 km · Guarda 63 km · Viseu 70 km · Chaves 72 km · Cabeceiras de Basto 72 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

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 Custoias (41.1053°, -7.321°, elevation 569 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. 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).

	Avg high (°C)	Avg low (°C)
1	22	11
2	22	11
3	22	11
4	22	11
5	21	11
6	21	11
7	21	11
8	21	11
9	21	11
10	20	11
11	20	10
12	20	10
13	20	10
14	20	10
15	19	10
16	19	10
17	19	10
18	19	10
19	19	10
20	18	10
21	18	10
22	18	9
23	18	9
24	18	9
25	18	9
26	17	9
27	17	9
28	17	9
29	17	9
30	17	9
31	16	8

	Clearer (%)	Cloudier (%)
1	60	40
2	59	41
3	59	41
4	58	42
5	57	43
6	56	44
7	55	45
8	54	46
9	53	47
10	52	48
11	51	49
12	50	50
13	49	51
14	47	53
15	47	53
16	46	54
17	45	55
18	44	56
19	42	58
20	43	57
21	42	58
22	41	59
23	41	59
24	40	60
25	39	61
26	39	61
27	40	60
28	39	61
29	39	61
30	37	63
31	38	62

	Rain chance (%)
1	20
2	21
3	21
4	22
5	23
6	24
7	25
8	26
9	27
10	28
11	29
12	30
13	31
14	32
15	33
16	34
17	34
18	35
19	35
20	35
21	35
22	35
23	35
24	34
25	34
26	34
27	33
28	33
29	32
30	32
31	32

	Dry (%)	Comfortable (%)	Humid (%)
1	82	17	1
2	81	17	2
3	81	17	2
4	82	16	2
5	82	16	2
6	83	15	2
7	83	15	2
8	83	15	2
9	84	14	2
10	84	14	2
11	85	14	1
12	85	14	1
13	85	14	1
14	85	14	1
15	86	13	1
16	86	13	1
17	86	13	1
18	86	13	1
19	87	13	0
20	87	13	0
21	87	13	0
22	87	13	0
23	87	13	0
24	88	12	0
25	88	12	0
26	88	12	0
27	89	11	0
28	89	11	0
29	90	10	0
30	90	10	0
31	91	9	0

	Avg high (°C)	Avg low (°C)
1	22	11
2	22	11
3	22	11
4	22	11
5	21	11
6	21	11
7	21	11
8	21	11
9	21	11
10	20	11
11	20	10
12	20	10
13	20	10
14	20	10
15	19	10
16	19	10
17	19	10
18	19	10
19	19	10
20	18	10
21	18	10
22	18	9
23	18	9
24	18	9
25	18	9
26	17	9
27	17	9
28	17	9
29	17	9
30	17	9
31	16	8

	Clearer (%)	Cloudier (%)
1	60	40
2	59	41
3	59	41
4	58	42
5	57	43
6	56	44
7	55	45
8	54	46
9	53	47
10	52	48
11	51	49
12	50	50
13	49	51
14	47	53
15	47	53
16	46	54
17	45	55
18	44	56
19	42	58
20	43	57
21	42	58
22	41	59
23	41	59
24	40	60
25	39	61
26	39	61
27	40	60
28	39	61
29	39	61
30	37	63
31	38	62

	Rain chance (%)
1	20
2	21
3	21
4	22
5	23
6	24
7	25
8	26
9	27
10	28
11	29
12	30
13	31
14	32
15	33
16	34
17	34
18	35
19	35
20	35
21	35
22	35
23	35
24	34
25	34
26	34
27	33
28	33
29	32
30	32
31	32

	Dry (%)	Comfortable (%)	Humid (%)
1	82	17	1
2	81	17	2
3	81	17	2
4	82	16	2
5	82	16	2
6	83	15	2
7	83	15	2
8	83	15	2
9	84	14	2
10	84	14	2
11	85	14	1
12	85	14	1
13	85	14	1
14	85	14	1
15	86	13	1
16	86	13	1
17	86	13	1
18	86	13	1
19	87	13	0
20	87	13	0
21	87	13	0
22	87	13	0
23	87	13	0
24	88	12	0
25	88	12	0
26	88	12	0
27	89	11	0
28	89	11	0
29	90	10	0
30	90	10	0
31	91	9	0

	Avg high (°C)	Avg low (°C)
1	22	11
2	22	11
3	22	11
4	22	11
5	21	11
6	21	11
7	21	11
8	21	11
9	21	11
10	20	11
11	20	10
12	20	10
13	20	10
14	20	10
15	19	10
16	19	10
17	19	10
18	19	10
19	19	10
20	18	10
21	18	10
22	18	9
23	18	9
24	18	9
25	18	9
26	17	9
27	17	9
28	17	9
29	17	9
30	17	9
31	16	8

	Clearer (%)	Cloudier (%)
1	60	40
2	59	41
3	59	41
4	58	42
5	57	43
6	56	44
7	55	45
8	54	46
9	53	47
10	52	48
11	51	49
12	50	50
13	49	51
14	47	53
15	47	53
16	46	54
17	45	55
18	44	56
19	42	58
20	43	57
21	42	58
22	41	59
23	41	59
24	40	60
25	39	61
26	39	61
27	40	60
28	39	61
29	39	61
30	37	63
31	38	62

	Rain chance (%)
1	20
2	21
3	21
4	22
5	23
6	24
7	25
8	26
9	27
10	28
11	29
12	30
13	31
14	32
15	33
16	34
17	34
18	35
19	35
20	35
21	35
22	35
23	35
24	34
25	34
26	34
27	33
28	33
29	32
30	32
31	32

	Dry (%)	Comfortable (%)	Humid (%)
1	82	17	1
2	81	17	2
3	81	17	2
4	82	16	2
5	82	16	2
6	83	15	2
7	83	15	2
8	83	15	2
9	84	14	2
10	84	14	2
11	85	14	1
12	85	14	1
13	85	14	1
14	85	14	1
15	86	13	1
16	86	13	1
17	86	13	1
18	86	13	1
19	87	13	0
20	87	13	0
21	87	13	0
22	87	13	0
23	87	13	0
24	88	12	0
25	88	12	0
26	88	12	0
27	89	11	0
28	89	11	0
29	90	10	0
30	90	10	0
31	91	9	0