Cabeceiras de Basto weather in December

In December, Cabeceiras de Basto sees average daytime highs of 10°C and overnight lows near 4°C, with 202 mm of precipitation across 12.6 wet days and about 9.1 hours of daylight. It is the 11th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 10°C through the month. The sky is clear or mostly clear about 29% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 12 min at the start of December to 9 hours by month's end. Set against the rest of the year, December is Cabeceiras de Basto's 12th-clearest and 2nd-windiest month. For the whole year in context, see Cabeceiras de Basto's year-round climate.

Daytime high
10°
11th warmest
Overnight low
3rd coldest
Precipitation
202 mm
12.6 wet days
Daylight
9 hours
7:58 AM – 4:58 PM
Cloud cover
64%
12th clearest
Wind
9 km/h
2nd windiest
Solar energy
1.54 kWh/m²
Travel score
2.3
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 10°C through the month.

A typical December day in Cabeceiras de Basto reaches about 10°C in the afternoon and slips back to 4°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 13°C. Set against its neighbours, December runs about 3°C cooler than November and on par with January.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
1115
2115
3115
4114
5114
6114
7114
8114
9114
10114
11114
12114
13114
14104
15104
16104
17104
18104
19104
20104
21104
22104
23104
24104
25104
26104
27104
28104
29104
30104
31104

Cabeceiras de Basto weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan10° / 19012.70.99.32.1
Feb12° / 1239.80.910.32.9
Mar14° / 14011.40.211.74.1
Apr16° / 13113.30.113.14.5
May19° / 10712.6014.35.7
Jun22° / 12°517.4014.97.3
Jul25° / 14°284.4014.78.2
Aug26° / 14°374.7013.78.1
Sep22° / 12°757.3012.37.4
Oct18° / 10°19212.7010.95.3
Nov13° / 18413.10.29.73.3
Dec10° / 20212.60.49.12.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 8% of December, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33664
43664
53664
63664
73565
83565
93664
103664
113664
123664
133664
143763
153763
163862
173862
183961
193961
203961
213961
223862
233763
243763
253763
263763
273664
283664
293664
303664
313565

Chance of precipitation in December

Any precipitationSnow

Cabeceiras de Basto gets around 202 mm of rain and snow over 12.6 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 41% and peaks near 45% on the wettest days, and about 0 day brings snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1402
2401
3401
4391
5391
6391
7391
8391
9391
10391
11391
12391
13401
14401
15401
16401
17401
18401
19401
20411
21411
22421
23422
24432
25432
26442
27442
28442
29442
30442
31453

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 9 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
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 12 min at the start of December to 9 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:45 AM to 8:04 AM, and sunset from 4:58 PM to 5:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.27:454:58
29.27:464:58
39.27:474:58
49.27:484:58
59.17:494:57
69.17:504:57
79.17:514:57
89.17:524:57
99.17:534:57
109.17:534:57
119.17:544:57
129.07:554:58
139.07:564:58
149.07:564:58
159.07:574:58
169.07:584:58
179.07:584:59
189.07:594:59
199.08:004:59
209.08:005:00
219.08:015:00
229.08:015:01
239.08:025:01
249.08:025:02
259.08:025:02
269.08:035:03
279.08:035:03
289.08:035:04
299.08:045:05
309.08:045:05
319.08:045:06

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.54 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.54 kWh/m² to a high of 7.19 kWh/m² in July across the year — December's 1.54 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.7Dim
21.7Dim
31.6Dim
41.6Dim
51.6Dim
61.6Dim
71.6Dim
81.6Dim
91.6Dim
101.6Dim
111.6Dim
121.6Dim
131.6Dim
141.6Dim
151.6Dim
161.6Dim
171.5Dim
181.5Dim
191.5Dim
201.5Dim
211.5Dim
221.5Dim
231.5Dim
241.5Dim
251.5Dim
261.5Dim
271.5Dim
281.5Dim
291.5Dim
301.5Dim
311.5Dim
Planning a trip in December

Hazard calendar for Cabeceiras de Basto

In seasonPeak

In December, Cabeceiras de Basto sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Cabeceiras de Basto'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 December a good time to visit Cabeceiras de Basto?

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

2.3
Sightseeing
11th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Cabeceiras de Basto.

What to pack for Cabeceiras de Basto in December

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

In December, Cabeceiras de Basto sees daytime highs around 10°C and nights near 4°C. Pack a warm layer. Worth having: rain gear. About 13 days see rain.

a warm layerrain gear

Sea temperature near Cabeceiras de Basto in December

The nearest coast averages about 14°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 68 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 Cabeceiras de Basto in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cabeceiras de Basto peaks around July 12 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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 19UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr7High
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Cabeceiras de Basto in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Cabeceiras de Basto 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 Cabeceiras de Basto?

Cabeceiras de Basto sits at 41.5°N, 8.0°W, 295 m above sea level, in Portugal. The nearest listed city is Fafe, 17 km away.

Topography around Cabeceiras de Basto

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

Within 3 km, the terrain around Cabeceiras de Basto has significant variations in elevation — a maximum elevation change of 452 m around an average of 358 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,159 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,517 m.

The land around Cabeceiras de Basto is covered by trees (55%) and grassland (34%) within 3 km, trees (53%) and grassland (43%) within 16 km, and trees (44%) and grassland (40%) within 80 km.

3 km
452 m
16 km
1,159 m
80 km
1,517 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Fafe 17 km · Felgueiras 24 km · Guimarães 27 km · Vila Real 31 km · Bairro Novo 35 km · Braga 36 km · Baião 39 km · Paredes 45 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 Cabeceiras de Basto (41.5143°, -7.9894°, elevation 295 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).