Matinhos weather in December

In December, Matinhos sees average daytime highs of 27°C and overnight lows near 22°C, with 200 mm of rain across 19.8 wet days and about 13.6 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 27°C by the end. The sky is clear or mostly clear about 11% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 13 h 30 min at the start of December to 13 h 36 min by month's end. Set against the rest of the year, December is Matinhos's 9th-clearest and 3rd-windiest month. For the whole year in context, see Matinhos's year-round climate.

Daytime high
27°
4th warmest
Overnight low
22°
9th coldest
Rainfall
200 mm
19.8 wet days
Daylight
13 h 36 min
6:22 AM – 7:58 PM
Cloud cover
74%
9th clearest
Wind
10 km/h
3rd windiest
Solar energy
5.52 kWh/m²
Travel score
4.9
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 27°C by the end.

A typical December day in Matinhos reaches about 27°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 30°C. Set against its neighbours, December runs about 2°C warmer than November and about 1°C cooler than January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12621
22621
32621
42621
52621
62621
72621
82621
92622
102622
112622
122622
132722
142722
152722
162722
172722
182722
192722
202722
212722
222722
232722
242722
252723
262723
272723
282723
292823
302823
312823

Matinhos weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 23°27624.313.44.2
Feb28° / 23°26521.412.94.2
Mar27° / 22°21622.612.24.6
Apr25° / 21°12215.511.45.8
May23° / 18°11913.310.86.3
Jun21° / 16°941010.46.4
Jul20° / 15°859.810.56.4
Aug21° / 16°738.911.16.6
Sep22° / 17°1301411.85.8
Oct23° / 19°13917.212.65.4
Nov25° / 20°15718.413.35.3
Dec27° / 22°20019.813.64.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 72%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
22971
32971
42872
52872
62773
72773
82773
92773
102674
112773
122773
132773
142773
152773
162773
172872
182872
192872
202872
212971
222971
232872
242971
252971
262872
272773
282773
292674
302674
312674

Chance of precipitation in December

Any precipitation

Matinhos gets around 200 mm of rain over 19.8 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 65% and peaks near 71% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
161
261
362
462
562
662
763
863
963
1063
1164
1264
1364
1464
1564
1664
1764
1865
1965
2065
2165
2265
2365
2466
2567
2667
2768
2869
2970
3070
3171

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 44% of days. Sticky, muggy-or-worse air turns up on roughly 85% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
142343291
242243301
342143311
442043321
542043321
631943331
731842351
831842362
931741372
1031641382
1131540402
1231440412
1331339433
1431238443
1531137454
1631136474
1731034485
1831033496
192932516
202931517
212930518
222829529
2328285210
2428275211
2527275212
2617265313
2717265214
2817255314
2917255215
3017255215
3117255116

Wind in December

Winds average 10 km/h in December.

Across December, 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
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 30 min at the start of December to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 6:19 AM to 6:30 AM, and sunset from 7:49 PM to 8:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.56:197:49
213.56:197:50
313.56:197:50
413.56:197:51
513.56:197:52
613.56:197:52
713.66:207:53
813.66:207:54
913.66:207:54
1013.66:207:55
1113.66:217:56
1213.66:217:56
1313.66:217:57
1413.66:217:57
1513.66:227:58
1613.66:227:58
1713.66:237:59
1813.66:238:00
1913.66:238:00
2013.66:248:01
2113.66:248:01
2213.66:258:02
2313.66:258:02
2413.66:268:03
2513.66:268:03
2613.66:278:03
2713.66:278:04
2813.66:288:04
2913.66:288:04
3013.66:298:05
3113.66:308:05

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.52 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.62 kWh/m² to a high of 5.52 kWh/m² in December across the year — December's 5.52 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in December

Hazard calendar for Matinhos

In seasonPeak

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

Matinhos's rainy season runs September–March, 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 Matinhos?

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

4.9
Sightseeing
9th-best month of the year
4.9
Beach & pool
2nd-best month of the year

December is a reasonable time to visit Matinhos for sightseeing.

What to pack for Matinhos in December

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

In December, Matinhos sees daytime highs around 27°C and nights near 22°C. Pack rain gear. Worth having: light clothes and sun protection. About 20 days see rain.

rain gearlight clothessun protection

Sea temperature near Matinhos in December

The nearest coast averages about 25°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 17 km away) is warmest in February at about 27°C and coldest in August near 19°C.

It's comfortable for a long swim from Sep 20 to Jun 28 — about 9.3 months when the water holds above 20°C.

20°25°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr25Warm
May23Refreshing
Jun21Refreshing
Jul19Cool
Aug19Cool
Sep20Cool
Oct21Refreshing
Nov23Refreshing
Dec25Warm

UV index in Matinhos in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Matinhos peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighHighVery highExtremeJan 19UV 14Jul 12UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May6High
Jun5High
Jul5Moderate
Aug6High
Sep8Very high
Oct10Very high
Nov12Extreme
Dec13Extreme
Location & terrain

Where is Matinhos?

Matinhos sits at 25.8°S, 48.5°W, 7 m above sea level, in Brazil. The nearest listed city is Guaratuba, 7.0 km away.

Topography around Matinhos

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

Within 3 km, the terrain around Matinhos has significant variations in elevation — a maximum elevation change of 439 m around an average of 37 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 825 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,785 m.

The land around Matinhos is covered by water (46%) and trees (32%) within 3 km, water (54%) and trees (34%) within 16 km, and trees (55%) and water (34%) within 80 km.

3 km
439 m
16 km
825 m
80 km
1,785 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
December weather nearby: Guaratuba 7.0 km · Pontal do Paraná 18 km · Itapoá 33 km · Paranaguá 35 km · Garuva 38 km · São Francisco do Sul 47 km · Antonina 48 km · Morretes 49 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 Matinhos (-25.8322°, -48.5397°, elevation 7 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).