Irati weather in December

In December, Irati sees average daytime highs of 26°C and overnight lows near 17°C, with 137 mm of rain across 17.6 wet days and about 13.6 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 14% of the time in December, and the air most often feels humid.

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 Irati's 9th-clearest and 6th-windiest month. For the whole year in context, see Irati's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
17°
10th coldest
Rainfall
137 mm
17.6 wet days
Daylight
13 h 36 min
6:31 AM – 8:06 PM
Cloud cover
71%
9th clearest
Wind
9 km/h
6th windiest
Solar energy
5.75 kWh/m²
Travel score
5.3
out of 10

Irati is locality in Paraná state, 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 26°C through the month.

A typical December day in Irati reaches about 26°C in the afternoon and slips back to 17°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 30°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12616
22616
32616
42616
52616
62616
72617
82617
92617
102617
112617
122617
132617
142617
152617
162617
172717
182717
192717
202717
212717
222717
232717
242717
252717
262717
272717
282718
292718
302718
312718

Irati weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 18°17121.513.44.7
Feb27° / 18°14119.112.94.8
Mar26° / 17°9814.912.25.8
Apr24° / 14°72911.46.9
May21° / 11°978.810.86.5
Jun19° / 10°1048.810.46.3
Jul20° / 787.710.66.6
Aug22° / 10°777.311.17.2
Sep23° / 12°13010.811.86.6
Oct24° / 14°13215.212.65.9
Nov25° / 15°11113.913.26.0
Dec26° / 17°13717.613.65.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 69%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23565
33565
43466
53466
63466
73466
83367
93367
103367
113466
123367
133367
143268
153268
163367
173268
183169
193169
203169
213169
223070
233070
242971
252872
262872
272872
282773
292773
302773
312773

Chance of precipitation in December

Any precipitation

Irati gets around 137 mm of rain over 17.6 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 57% 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 (%)
149
250
350
451
551
651
752
852
953
1053
1154
1254
1355
1455
1556
1657
1757
1858
1959
2059
2160
2261
2362
2462
2563
2664
2765
2865
2966
3066
3167

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 34% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
110274221
29264322
39254323
48254324
58244324
68244325
78234326
87234327
97234327
107224328
117224329
127214329
136214230
146214231
156204232
166204133
176204134
185194135
195194036
205194037
214183938
224183939
234173841
243173842
253163743
263163745
273163646
282153547
292153548
302153548
312143449

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 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 6:28 AM to 6:39 AM, and sunset from 7:57 PM to 8:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.56:287:57
213.56:287:57
313.56:287:58
413.56:287:59
513.56:297:59
613.56:298:00
713.56:298:01
813.56:298:01
913.56:298:02
1013.66:308:03
1113.66:308:03
1213.66:308:04
1313.66:308:04
1413.66:318:05
1513.66:318:06
1613.66:318:06
1713.66:328:07
1813.66:328:07
1913.66:338:08
2013.66:338:08
2113.66:338:09
2213.66:348:09
2313.66:348:10
2413.66:358:10
2513.66:358:11
2613.66:368:11
2713.66:368:11
2813.66:378:12
2913.66:388:12
3013.66:388:12
3113.66:398:13

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.75 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.86 kWh/m² to a high of 5.75 kWh/m² in December across the year — December's 5.75 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.6Bright
Planning a trip in December

Is December a good time to visit Irati?

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

5.3
Sightseeing
10th-best month of the year
5.2
Beach & pool
4th-best month of the year

December is a reasonable time to visit Irati for sightseeing.

What to pack for Irati in December

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

In December, Irati sees daytime highs around 26°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 18 days see rain.

rain gearlight clothessun protection

UV index in Irati in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Irati peaks around January 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 18UV 15Jul 13UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May6High
Jun6High
Jul5High
Aug6High
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Irati 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 Irati is worst in September — around 19 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (February, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1318 µg/m³Feb 196 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb6Good
Mar6Good
Apr7Good
May7Good
Jun8Good
Jul10Good
Aug15Moderate
Sep19Moderate
Oct11Good
Nov8Good
Dec6Good
Location & terrain

Where is Irati?

Irati sits at 25.5°S, 50.7°W, 848 m above sea level, in Brazil. The nearest listed city is Imbituva, 27 km away.

Topography around Irati

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

Within 3 km, the terrain around Irati has only modest variations in elevation — a maximum elevation change of 192 m around an average of 871 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 241 m; within 80 km, large variations in elevation — a maximum elevation change of 877 m.

The land around Irati is covered by trees (35%), artificial surfaces (30%) and cropland (20%) within 3 km, trees (53%) and cropland (38%) within 16 km, and trees (60%) and cropland (32%) within 80 km.

3 km
192 m
16 km
241 m
80 km
877 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Imbituva 27 km · Prudentópolis 43 km · São Mateus do Sul 53 km · Ponta Grossa 64 km · Palmeira 65 km · Três Barras 78 km · Guarapuava 82 km · Canoinhas 83 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 Irati (-25.4672°, -50.6511°, elevation 848 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).