Ovar weather in December

In December, Ovar sees average daytime highs of 14°C and overnight lows near 9°C, with 141 mm of rain across 12.2 wet days and about 9.1 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 14°C through the month. The sky is clear or mostly clear about 33% 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 Ovar's 12th-clearest and 2nd-windiest month. For the whole year in context, see Ovar's year-round climate.

Daytime high
14°
11th warmest
Overnight low
3rd coldest
Rainfall
141 mm
12.2 wet days
Daylight
9 h 06 min
7:58 AM – 5:03 PM
Cloud cover
57%
12th clearest
Wind
16 km/h
2nd windiest
Solar energy
1.76 kWh/m²
Travel score
4.0
out of 10

Ovar is city seat of Ovar 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 14°C through the month.

A typical December day in Ovar reaches about 14°C in the afternoon and slips back to 9°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 16°C. Set against its neighbours, December runs about 2°C cooler than November and on par with January.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
11510
21510
31510
41510
51510
61510
71510
81510
91410
101410
111410
121410
131410
14149
15149
16149
17149
18149
19149
20149
21149
22149
23149
24149
25149
26149
27149
28149
29149
30149
31149

Ovar 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 daysDaylight (hours)Travel score
Jan14° / 12812.19.43.8
Feb14° / 889.310.44.4
Mar16° / 10°959.911.75.3
Apr17° / 11°9810.913.15.7
May20° / 13°799.614.26.5
Jun22° / 16°26514.97.8
Jul24° / 17°122.714.68.8
Aug24° / 17°173.413.68.7
Sep23° / 16°51612.37.8
Oct20° / 14°1431210.96.1
Nov16° / 11°14512.79.74.9
Dec14° / 14112.29.14.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24654
34654
44555
54555
64555
74555
84555
94654
104654
114654
124654
134753
144753
154753
164753
174852
184852
194852
204951
214951
224951
234852
244753
254852
264852
274753
284753
294852
304753
314852

Chance of precipitation in December

Any precipitation

Ovar gets around 141 mm of rain over 12.2 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 44% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
239
339
438
538
638
737
837
937
1037
1137
1238
1338
1438
1538
1638
1738
1838
1939
2039
2140
2240
2341
2441
2542
2642
2743
2843
2943
3043
3144

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 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1937
2937
3937
4937
5946
6946
7946
8937
9937
10937
11937
12937
13937
14937
15937
16937
17937
18937
19937
20937
21937
22937
23937
24937
25937
26937
27937
28937
29937
30937
31937

Wind in December

Winds average 16 km/h in December.

Across December, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

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 7:46 AM to 8:05 AM, and sunset from 5:03 PM to 5:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.37:465:03
29.37:475:03
39.27:485:02
49.27:495:02
59.27:505:02
69.27:505:02
79.27:515:02
89.27:525:02
99.17:535:02
109.17:545:02
119.17:555:02
129.17:555:02
139.17:565:02
149.17:575:03
159.17:585:03
169.17:585:03
179.17:595:03
189.17:595:04
199.18:005:04
209.18:015:04
219.18:015:05
229.18:025:05
239.18:025:06
249.18:025:06
259.18:035:07
269.18:035:07
279.18:045:08
289.18:045:09
299.18:045:09
309.18:045:10
319.18:055:11

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.76 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.76 kWh/m² to a high of 7.32 kWh/m² in July across the year — December's 1.76 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.9Dim
21.9Dim
31.9Dim
41.9Dim
51.8Dim
61.8Dim
71.8Dim
81.8Dim
91.8Dim
101.8Dim
111.8Dim
121.8Dim
131.8Dim
141.8Dim
151.8Dim
161.8Dim
171.8Dim
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
311.8Dim
Planning a trip in December

Hazard calendar for Ovar

In seasonPeak

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

Ovar'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 Ovar?

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

4.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
11th-best month of the year

December is a reasonable time to visit Ovar for sightseeing.

What to pack for Ovar in December

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

In December, Ovar sees daytime highs around 14°C and nights near 9°C. Worth packing: a warm layer and rain gear. About 12 days see rain.

a warm layerrain gear

Sea temperature near Ovar in December

The nearest coast averages about 15°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 21 km away) is warmest in September at about 18°C and coldest in February near 14°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

12°14°16°18°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan14Bracing
Feb14Bracing
Mar14Bracing
Apr15Bracing
May16Cool
Jun17Cool
Jul18Cool
Aug18Cool
Sep18Cool
Oct17Cool
Nov16Cool
Dec15Bracing

UV index in Ovar 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 Ovar peaks around July 11 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 11UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7High
Jun9Very high
Jul9Very high
Aug8Very high
Sep5High
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Ovar 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 Ovar is worst in October — around 19 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 1119 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar11Good
Apr10Good
May8Good
Jun12Good
Jul8Good
Aug14Moderate
Sep17Moderate
Oct19Moderate
Nov7Good
Dec7Good
Location & terrain

Where is Ovar?

Ovar sits at 40.9°N, 8.6°W, 16 m above sea level, in Portugal. The nearest listed city is Feira, 10 km away.

Topography around Ovar

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

Within 3 km, the terrain around Ovar has only modest variations in elevation — a maximum elevation change of 55 m around an average of 16 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 413 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,402 m.

The land around Ovar is covered by trees (29%), grassland (25%) and artificial surfaces (21%) within 3 km, water (36%) and trees (31%) within 16 km, and trees (43%), water (26%) and grassland (21%) within 80 km.

3 km
55 m
16 km
413 m
80 km
1,402 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Feira 10 km · São João da Madeira 12 km · Espinho 17 km · Aveiro 24 km · Vilar 26 km · Valadares 26 km · Vilar de Andorinho 28 km · Santo Ovídio 28 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 Ovar (40.8586°, -8.6251°, elevation 16 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).