Guaíra weather in October

In October, Guaíra sees average daytime highs of 29°C and overnight lows near 19°C, with 165 mm of rain across 12.8 wet days and about 12.6 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 33% of the time in October, and the air most often feels muggy.

Daylight stretches from about 12 h 12 min at the start of October to 12 h 54 min by month's end. Set against the rest of the year, October is Guaíra's 9th-clearest and 4th-windiest month. For the whole year in context, see Guaíra's year-round climate.

Daytime high
29°
6th warmest
Overnight low
19°
7th coldest
Rainfall
165 mm
12.8 wet days
Daylight
12 h 36 min
7:05 AM – 7:39 PM
Cloud cover
60%
9th clearest
Wind
10 km/h
4th windiest
Solar energy
5.52 kWh/m²
Travel score
5.0
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical October day in Guaíra reaches about 29°C in the afternoon and slips back to 19°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 34°C. Set against its neighbours, October runs about 1°C warmer than September and about 1°C cooler than November.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12818
22818
32918
42918
52918
62919
72919
82919
92919
102919
112919
122919
132919
142919
152919
162920
172920
182920
192920
203020
213020
223020
233020
243020
253020
263020
273020
283020
293020
303020
313020

How October really feels in Guaíra

Once humidity and wind are folded in, October 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

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

Guaíra weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°14717.613.33.6
Feb31° / 22°14915.412.83.8
Mar30° / 21°10712.812.24.5
Apr28° / 19°958.311.56.1
May25° / 16°1268.810.97.1
Jun24° / 15°1078.110.57.4
Jul24° / 14°896.910.77.6
Aug26° / 15°886.511.27.6
Sep28° / 17°1278.811.96.7
Oct29° / 19°16512.812.65.0
Nov30° / 20°14812.513.24.7
Dec31° / 22°16415.713.53.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 12% of October, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24654
34555
44555
54555
64555
74456
84456
94456
104456
114456
124555
134555
144456
154456
164456
174456
184456
194456
204456
214456
224555
234555
244555
254654
264654
274654
284654
294654
304753
314753

Chance of precipitation in October

Any precipitation

Guaíra gets around 165 mm of rain over 12.8 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 41% and peaks near 45% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
137
237
337
437
537
637
738
838
938
1038
1139
1239
1340
1440
1541
1642
1743
1843
1944
2044
2145
2245
2345
2445
2545
2645
2744
2844
2944
3044
3144

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the muggy band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 59% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1101931373
291930383
391830394
481830404
571729415
671729426
761628436
861627447
961526448
1051526459
11514254510
12514244611
13414244612
14413234613
15313234714
16312224715
17312224816
18211224817
19211214817
20211214818
21210214819
22210204819
23210204820
24210204720
25210204720
26210204621
27311204521
28311204522
29311204423
30311204323
31311204324

Wind in October

Winds average 10 km/h in October.

Across October, 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
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 12 min at the start of October to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over October. Sunrise moves from 7:19 AM to 6:54 AM, and sunset from 7:33 PM to 7:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.27:197:33
212.27:187:33
312.37:177:33
412.37:167:34
512.37:157:34
612.37:147:35
712.47:137:35
812.47:127:36
912.47:117:36
1012.47:107:36
1112.57:097:37
1212.57:087:37
1312.57:087:38
1412.57:077:38
1512.57:067:39
1612.67:057:39
1712.67:047:40
1812.67:037:40
1912.67:027:41
2012.77:017:41
2112.77:017:42
2212.77:007:42
2312.76:597:43
2412.76:587:43
2512.86:587:44
2612.86:577:44
2712.86:567:45
2812.86:567:46
2912.96:557:46
3012.96:547:47
3112.96:547:47

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.52 kWh/m².

For context, solar energy here swings from a low near 3.07 kWh/m² to a high of 6.31 kWh/m² in December across the year — October's 5.52 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.4Bright
95.4Bright
105.4Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in October

Is October a good time to visit Guaíra?

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

5.0
Sightseeing
7th-best month of the year
6.5
Beach & pool
4th-best month of the year

October is a reasonable time to visit Guaíra for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Guaíra in October

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

In October, Guaíra sees daytime highs around 29°C and nights near 19°C. Pack light clothes. Worth having: rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Guaíra in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Guaíra peaks around January 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeJan 19UV 15Jul 10UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5High
Jul5High
Aug7Very high
Sep6High
Oct10Extreme
Nov12Extreme
Dec14Extreme

Air quality in Guaíra in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Guaíra is worst in September — around 26 µg/m³ PM2.5 (moderate), about 4.7× the cleanest month (March, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1525 µg/m³Mar 166 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb7Good
Mar6Good
Apr7Good
May8Good
Jun8Good
Jul7Good
Aug17Moderate
Sep26Moderate
Oct13Moderate
Nov9Good
Dec7Good
Location & terrain

Where is Guaíra?

Guaíra sits at 24.1°S, 54.2°W, 256 m above sea level, in Brazil. The nearest listed city is Terra Roxa, 17 km away.

Topography around Guaíra

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

Within 3 km, the terrain around Guaíra has only modest variations in elevation — a maximum elevation change of 71 m around an average of 239 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 152 m; within 80 km, significant variations in elevation — a maximum elevation change of 334 m.

The land around Guaíra is covered by water (26%), grassland (22%) and trees (21%) within 3 km, cropland (46%), grassland (22%) and trees (20%) within 16 km, and cropland (58%) within 80 km.

3 km
71 m
16 km
152 m
80 km
334 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Terra Roxa 17 km · Altônia 42 km · Palotina 47 km · Iporã 56 km · Marechal Cândido Rondon 56 km · Itaquiraí 68 km · Assis Chateaubriand 83 km · Toledo 87 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 Guaíra (-24.082°, -54.2462°, elevation 256 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).