Guarda weather in December

In December, Guarda sees average daytime highs of 10°C and overnight lows near 3°C, with 85 mm of precipitation across 9.1 wet days and about 9.2 hours of daylight. It is the 11th-warmest and 3rd-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 30% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 18 min at the start of December to 9 h 06 min by month's end. Set against the rest of the year, December is Guarda's 12th-clearest and 6th-windiest month. For the whole year in context, see Guarda's year-round climate.

Daytime high
10°
11th warmest
Overnight low
3rd coldest
Precipitation
85 mm
9.1 wet days
Daylight
9 h 06 min
7:52 AM – 4:59 PM
Cloud cover
62%
12th clearest
Wind
10 km/h
6th windiest
Solar energy
1.7 kWh/m²
Travel score
2.2
out of 10

Guarda is city seat of Guarda municipality.

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

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 Guarda reaches about 10°C in the afternoon and slips back to 3°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 7°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)
1114
2104
3104
4104
5104
6104
7104
8104
9104
10104
11104
12104
13103
14103
15103
16103
17103
18103
19103
20103
21103
22103
23103
24103
2593
2693
2793
2893
2993
3093
3193

How December really feels in Guarda

Once humidity and wind are folded in, December 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

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

Guarda weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 779.20.89.42.0
Feb11° / 557.50.710.42.9
Mar14° / 648.80.211.74.3
Apr16° / 6710.50135.0
May20° / 10°649.5014.26.4
Jun25° / 13°234.8014.87.9
Jul28° / 15°102.6014.67.4
Aug28° / 15°133.3013.67.4
Sep24° / 13°445.6012.37.8
Oct18° / 10°1059.9010.95.9
Nov13° / 869.90.29.73.5
Dec10° / 859.10.29.22.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
34060
44060
54159
64159
74159
84159
94258
104258
114258
124258
134258
144159
154258
164258
174258
184258
194159
204258
214159
224159
234159
244060
253961
264060
274060
284060
293961
304060
314060

Chance of precipitation in December

Any precipitationSnow

Guarda gets around 85 mm of rain and snow over 9.1 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 29% and peaks near 33% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1311
2311
3301
4301
5291
6291
7281
8281
9281
10280
11270
12270
13270
14270
15270
16270
17270
18281
19281
20281
21291
22301
23301
24311
25311
26321
27321
28321
29331
30332
31332

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 10 km/h in December.

Across December, daily wind ranges from about 10 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
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 18 min at the start of December to 9 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:39 AM to 7:58 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)
19.37:394:58
29.37:404:58
39.37:414:58
49.37:424:58
59.27:434:58
69.27:444:58
79.27:454:58
89.27:464:58
99.27:474:58
109.27:474:58
119.27:484:58
129.17:494:58
139.17:504:58
149.17:504:58
159.17:514:58
169.17:524:59
179.17:524:59
189.17:534:59
199.17:545:00
209.17:545:00
219.17:555:01
229.17:555:01
239.17:565:01
249.17:565:02
259.17:565:03
269.17:575:03
279.17:575:04
289.17:575:04
299.17:585:05
309.17:585:06
319.17:585:06

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.7 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.7 kWh/m² to a high of 7.63 kWh/m² in July across the year — December's 1.7 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.9Dim
21.8Dim
31.8Dim
41.8Dim
51.8Dim
61.8Dim
71.8Dim
81.8Dim
91.7Dim
101.7Dim
111.7Dim
121.7Dim
131.7Dim
141.7Dim
151.7Dim
161.7Dim
171.7Dim
181.7Dim
191.7Dim
201.7Dim
211.7Dim
221.7Dim
231.7Dim
241.7Dim
251.7Dim
261.7Dim
271.7Dim
281.7Dim
291.7Dim
301.7Dim
311.7Dim
Planning a trip in December

Hazard calendar for Guarda

In seasonPeak

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

Guarda'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 Guarda?

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

2.2
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 Guarda.

What to pack for Guarda in December

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

In December, Guarda sees daytime highs around 10°C and nights near 3°C. Pack a warm layer. Worth having: rain gear. About 9 days see rain.

a warm layerrain gear

UV index in Guarda 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 Guarda peaks around July 17 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 17UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar6High
Apr7High
May7High
Jun9Very high
Jul10Very high
Aug9Very high
Sep6High
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Guarda 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 Guarda is worst in August — around 40 µg/m³ PM2.5 (poor), about 6.0× the cleanest month (November, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateModerateGoodAug 1736 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar13Moderate
Apr10Good
May8Good
Jun10Good
Jul11Good
Aug40Poor
Sep13Moderate
Oct26Moderate
Nov7Good
Dec7Good
Location & terrain

Where is Guarda?

Guarda sits at 40.5°N, 7.3°W, 1,008 m above sea level, in Portugal. The nearest listed city is Sequeira, 4.0 km away.

Topography around Guarda

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

Within 3 km, the terrain around Guarda has significant variations in elevation — a maximum elevation change of 260 m around an average of 891 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 887 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,942 m.

The land around Guarda is covered by grassland (53%) and trees (21%) within 3 km, grassland (62%) and trees (29%) within 16 km, and grassland (56%) and trees (35%) within 80 km.

3 km
260 m
16 km
887 m
80 km
1,942 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Sequeira 4.0 km · Covilhã 35 km · Viseu 56 km · Vila Nova de Foz Côa 61 km · Custoias 63 km · Castelo Branco 82 km · Arouca 93 km · Vila Real 94 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 Guarda (40.5375°, -7.2663°, elevation 1,008 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).