Castelo Branco weather in October

In October, Castelo Branco sees average daytime highs of 22°C and overnight lows near 12°C, with 83 mm of rain across 8.9 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 25°C in the first days to 19°C by the end. The sky is clear or mostly clear about 38% 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 Castelo Branco's 7th-clearest and 9th-windiest month. For the whole year in context, see Castelo Branco's year-round climate.

Daytime high
22°
6th warmest
Overnight low
12°
8th coldest
Rainfall
83 mm
8.9 wet days
Daylight
10 h 54 min
6:47 AM – 5:43 PM
Cloud cover
52%
7th clearest
Wind
9 km/h
9th windiest
Solar energy
3.42 kWh/m²
Travel score
6.9
out of 10

Castelo Branco is city seat of Castelo Branco municipality.

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 25°C in the first days to 19°C by the end.

A typical October day in Castelo Branco reaches about 22°C in the afternoon and slips back to 12°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 27°C. Set against its neighbours, October runs about 6°C cooler than September and about 6°C warmer than November.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12514
22514
32514
42514
52414
62413
72413
82413
92413
102313
112313
122313
132313
142213
152212
162212
172212
182112
192112
202112
212112
222112
232012
242012
252011
262011
272011
282011
291911
301911
311911

How October really feels in Castelo Branco

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Castelo Branco 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.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan13° / 628.29.53.7
Feb15° / 496.410.44.8
Mar18° / 587.411.76.2
Apr20° / 538.1136.6
May24° / 12°51714.27.5
Jun29° / 15°102.514.87.0
Jul32° / 18°41.314.55.1
Aug32° / 18°61.413.65.2
Sep28° / 16°344.612.37.1
Oct22° / 12°838.910.96.9
Nov16° / 778.39.85.4
Dec13° / 758.39.23.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% 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 47%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26436
36436
46337
56337
66238
76139
86040
95941
105941
115842
125743
135545
145446
155347
165248
175149
185050
194951
204852
214753
224555
234555
244555
254555
264456
274555
284456
294456
304357
314456

Chance of precipitation in October

Any precipitation

Castelo Branco gets around 83 mm of rain over 8.9 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 29% and peaks near 34% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
120
220
321
421
522
622
723
823
924
1025
1126
1227
1328
1429
1530
1631
1732
1832
1933
2033
2134
2234
2334
2434
2534
2634
2734
2833
2933
3032
3132

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 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
168257
268257
369247
469247
569247
669247
770246
870246
970246
1070246
1170246
1270246
1369256
1469256
1569256
1668266
1768266
1868266
1969265
2069265
2169265
2268275
2369265
2469265
2569265
2671254
2771254
2872244
2973234
3075223
3176213

Wind in October

Winds average 9 km/h in October.

Across October, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

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 6:31 AM to 7:04 AM, and sunset from 6:07 PM to 5:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:316:07
211.56:326:05
311.56:336:03
411.56:346:02
511.46:356:00
611.46:365:58
711.36:385:57
811.36:395:55
911.26:405:54
1011.26:415:52
1111.16:425:50
1211.16:435:49
1311.16:445:47
1411.06:455:46
1511.06:465:44
1610.96:475:43
1710.96:485:41
1810.86:495:40
1910.86:505:39
2010.86:515:37
2110.76:535:36
2210.76:545:34
2310.66:555:33
2410.66:565:32
2510.66:575:30
2610.56:585:29
2710.56:595:28
2810.47:005:27
2910.47:025:25
3010.47:035:24
3110.37:045:23

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.42 kWh/m².

For context, solar energy here swings from a low near 1.83 kWh/m² to a high of 7.74 kWh/m² in July across the year — October's 3.42 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.2Bright
44.2Bright
54.1Bright
64.0Bright
74.0Moderate
83.9Moderate
93.8Moderate
103.8Moderate
113.7Moderate
123.6Moderate
133.5Moderate
143.5Moderate
153.4Moderate
163.3Moderate
173.3Moderate
183.2Moderate
193.1Moderate
203.1Moderate
213.0Moderate
223.0Moderate
233.0Moderate
242.9Moderate
252.9Moderate
262.8Moderate
272.8Moderate
282.8Moderate
292.7Moderate
302.7Moderate
312.7Moderate
Planning a trip in October

Is October a good time to visit Castelo Branco?

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

6.9
Sightseeing
4th-best month of the year
4.8
Beach & pool
6th-best month of the year

October is a reasonable time to visit Castelo Branco for sightseeing.

What to pack for Castelo Branco in October

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

In October, Castelo Branco sees daytime highs around 22°C and nights near 12°C. Worth packing: rain gear. About 9 days see rain.

rain gear

UV index in Castelo Branco 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 Castelo Branco peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 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 17UV 9Dec 18UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar6High
Apr7High
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Castelo Branco 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 Castelo Branco is worst in August — around 21 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (November, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateModerateGoodAug 1620 µg/m³Nov 236 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar12Moderate
Apr10Good
May8Good
Jun9Good
Jul12Good
Aug21Moderate
Sep10Good
Oct14Moderate
Nov6Good
Dec7Good
Location & terrain

Where is Castelo Branco?

Castelo Branco sits at 39.8°N, 7.5°W, 371 m above sea level, in Portugal. The nearest listed city is Covilhã, 51 km away.

Topography around Castelo Branco

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

Within 3 km, the terrain around Castelo Branco has only modest variations in elevation — a maximum elevation change of 184 m around an average of 362 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 363 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,974 m.

The land around Castelo Branco is covered by grassland (48%), trees (27%) and artificial surfaces (21%) within 3 km, grassland (49%) and trees (39%) within 16 km, and grassland (50%) and trees (43%) within 80 km.

3 km
184 m
16 km
363 m
80 km
1,974 m
treesshrubsgrasslandcroplandartificial surfaceswater
October weather nearby: Covilhã 51 km · Portalegre 59 km · Guarda 82 km · Tomar 82 km · Sequeira 84 km · Santo António dos Olivais 89 km · Coimbra 90 km · São Paulo de Frades 90 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 Castelo Branco (39.8236°, -7.491°, elevation 371 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).