Prainha weather in December

In December, Prainha sees average daytime highs of 32°C and overnight lows near 25°C, with 119 mm of rain across 15.8 wet days and about 12.1 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 16% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of December to 12 h 06 min by month's end. Set against the rest of the year, December is Prainha's 7th-clearest and 3rd-windiest month. For the whole year in context, see Prainha's year-round climate.

Daytime high
32°
4th warmest
Overnight low
25°
10th coldest
Rainfall
119 mm
15.8 wet days
Daylight
12 h 06 min
6:27 AM – 6:33 PM
Cloud cover
69%
7th clearest
Wind
9 km/h
3rd windiest
Solar energy
5.37 kWh/m²
Travel score
3.3
out of 10

Prainha is human settlement in Brazil.

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 32°C through the month.

A typical December day in Prainha reaches about 32°C in the afternoon and slips back to 25°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, December runs about 1°C cooler than November and about 2°C warmer than January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13325
23325
33325
43325
53325
63325
73325
83325
93325
103325
113225
123225
133225
143225
153225
163225
173225
183225
193225
203225
213225
223225
233225
243225
253225
263225
273225
283225
293125
303125
313125

How December really feels in Prainha

Once humidity and wind are folded in, December averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Prainha weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 24°24124.312.13.0
Feb30° / 24°24623.912.13.0
Mar30° / 24°32028.1122.8
Apr30° / 24°33228.1122.8
May30° / 24°25928.211.92.9
Jun30° / 24°13922.111.93.4
Jul31° / 24°8916.511.94.1
Aug32° / 25°377.911.94.4
Sep33° / 25°315.7123.9
Oct33° / 25°427.1123.6
Nov33° / 25°751012.13.4
Dec32° / 25°11915.812.13.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 66%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24357
34357
44357
54258
64060
74060
83961
93961
103862
113763
123664
133565
143466
153367
163268
173268
183268
193070
203070
213070
222971
232971
242971
252971
262872
272872
282872
292872
302872
312872

Chance of precipitation in December

Any precipitation

Prainha gets around 119 mm of rain over 15.8 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 51% and peaks near 67% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
135
236
336
437
538
638
739
840
941
1043
1144
1246
1347
1449
1550
1652
1753
1855
1956
2057
2158
2259
2360
2461
2562
2663
2764
2865
2966
3066
3167

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 80% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
118316
218316
318316
418316
518316
618316
718316
818316
918217
1018217
1118217
1218118
1318118
1418019
1518019
1617920
1708020
1808020
1907921
2007921
2107921
2207822
2307822
2407723
2507723
2607723
2707723
2807624
2907624
3007624
3107525

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 12 h 06 min at the start of December to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 6:21 AM to 6:34 AM, and sunset from 6:27 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:216:27
212.16:216:27
312.16:226:27
412.16:226:28
512.16:226:28
612.16:236:29
712.16:236:29
812.16:236:30
912.16:246:30
1012.16:246:30
1112.16:256:31
1212.16:256:31
1312.16:266:32
1412.16:266:32
1512.16:276:33
1612.16:276:33
1712.16:276:34
1812.16:286:34
1912.16:286:35
2012.16:296:35
2112.16:296:36
2212.16:306:36
2312.16:306:36
2412.16:316:37
2512.16:316:37
2612.16:326:38
2712.16:326:38
2812.16:336:39
2912.16:336:39
3012.16:346:40
3112.16:346:40

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.37 kWh/m².

For context, solar energy here swings from a low near 3.97 kWh/m² to a high of 6.41 kWh/m² in October across the year — December's 5.37 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.5Bright
125.5Bright
135.5Bright
145.4Bright
155.4Bright
165.4Bright
175.3Bright
185.3Bright
195.3Bright
205.2Bright
215.2Bright
225.2Bright
235.1Bright
245.1Bright
255.1Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
304.9Bright
314.9Bright
Planning a trip in December

Hazard calendar for Prainha

In seasonPeak

None of Prainha's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Prainha's rainy season runs January–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 Prainha?

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

3.3
Sightseeing
7th-best month of the year
5.4
Beach & pool
6th-best month of the year

December is a weaker month for outdoor sightseeing in Prainha.

What to pack for Prainha in December

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

In December, Prainha sees daytime highs around 32°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

UV index in Prainha in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Prainha peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 14UV 15Jun 23UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Prainha 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 Prainha is worst in November — around 26 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (June, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1626 µg/m³Jun 239 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb17Moderate
Mar17Moderate
Apr14Moderate
May10Good
Jun9Good
Jul9Good
Aug10Good
Sep12Moderate
Oct20Moderate
Nov26Moderate
Dec20Moderate
Location & terrain

Where is Prainha?

Prainha sits at 1.8°S, 53.5°W, 35 m above sea level, in Brazil. The nearest listed city is Monte Alegre, 70 km away.

Topography around Prainha

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

Within 3 km, the terrain around Prainha has only modest variations in elevation — a maximum elevation change of 52 m around an average of 21 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 111 m; within 80 km, large variations in elevation — a maximum elevation change of 631 m.

The land around Prainha is covered by trees (39%), water (32%) and grassland (23%) within 3 km, trees (37%), water (31%) and grassland (23%) within 16 km, and trees (66%) within 80 km.

3 km
52 m
16 km
111 m
80 km
631 m
treesgrasslandartificial surfaceswaterwetland
December weather nearby: Monte Alegre 70 km · Almeirim 104 km · Porto de Moz 138 km · Alenquer 141 km · Laranjal do Jari 153 km · Santarém 154 km · Mojuí dos Campos 162 km · Belterra 187 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 Prainha (-1.8°, -53.48°, elevation 35 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).