Cidreira weather in October

In October, Cidreira sees average daytime highs of 22°C and overnight lows near 17°C, with 144 mm of rain across 12.1 wet days and about 12.7 hours of daylight. It is the 7th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 22°C by the end. The sky is clear or mostly clear about 26% of the time in October, and the air most often feels humid.

Daylight stretches from about 12 h 18 min at the start of October to 13 h 12 min by month's end. Set against the rest of the year, October is Cidreira's 12th-clearest and 1st-windiest month. For the whole year in context, see Cidreira's year-round climate.

Daytime high
22°
7th warmest
Overnight low
17°
6th coldest
Rainfall
144 mm
12.1 wet days
Daylight
12 h 42 min
6:44 AM – 7:28 PM
Cloud cover
67%
12th clearest
Wind
21 km/h
1st windiest
Solar energy
5.18 kWh/m²
Travel score
6.2
out of 10

Cidreira is chief city of Cidreira Municipality, Rio Grande do Sul, Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 22°C by the end.

A typical October day in Cidreira reaches about 22°C in the afternoon and slips back to 17°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 25°C. Set against its neighbours, October runs about 2°C warmer than September and about 2°C cooler than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12016
22016
32016
42116
52116
62116
72116
82117
92117
102117
112117
122117
132117
142217
152217
162217
172217
182217
192217
202217
212217
222218
232218
242218
252218
262218
272218
282218
292218
302218
312218

Cidreira weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 22°10111.513.76.3
Feb27° / 22°9211.613.16.1
Mar26° / 22°10410.912.26.6
Apr24° / 19°859.211.37.0
May21° / 16°1089.210.56.6
Jun19° / 14°1069.410.16.1
Jul18° / 13°12510.110.35.9
Aug19° / 14°1169.910.96.2
Sep20° / 15°13710.911.86.0
Oct22° / 17°14412.112.76.2
Nov24° / 19°1039.713.57.0
Dec26° / 21°1011013.96.8

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in October, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23961
33862
43763
53763
63763
73763
83763
93862
103862
113961
123961
133961
144060
154060
164060
174060
184060
194060
204159
214258
224258
234258
244258
254258
264357
274357
284357
294357
304456
314555

Chance of precipitation in October

Any precipitation

Cidreira gets around 144 mm of rain over 12.1 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 38% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
338
438
538
639
739
839
939
1040
1140
1240
1340
1440
1540
1640
1740
1840
1940
2039
2139
2239
2338
2438
2537
2637
2736
2836
2936
3035
3135

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the humid band about 34% of days. Sticky, muggy-or-worse air turns up on roughly 19% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
130293470
230293480
329283490
4282834100
5272834110
6262835120
7252735130
8242735150
9232734160
10222734170
11212734180
12212734180
13202734190
14192734200
15192734200
16182634210
17182635210
18172635220
19172535220
20172535230
21172435230
22172435240
23182434240
24182434240
25182434250
26182433250
27182333251
28182333261
29172332261
30172332271
31172331271

Wind in October

Winds average 21 km/h in October, the windiest month of the year.

Across October, daily wind ranges from about 21 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
121breezy
221breezy
321breezy
421breezy
521breezy
621breezy
721breezy
821breezy
921breezy
1021breezy
1121breezy
1221breezy
1321breezy
1421breezy
1521breezy
1621breezy
1721breezy
1821breezy
1921breezy
2021breezy
2121breezy
2221breezy
2321breezy
2421breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy
3121breezy

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 18 min at the start of October to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over October. Sunrise moves from 7:01 AM to 6:29 AM, and sunset from 7:18 PM to 7:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.37:017:18
212.37:007:19
312.46:597:20
412.46:577:20
512.46:567:21
612.46:557:22
712.56:547:22
812.56:537:23
912.56:517:23
1012.66:507:24
1112.66:497:25
1212.66:487:25
1312.76:477:26
1412.76:467:27
1512.76:457:28
1612.76:447:28
1712.86:427:29
1812.86:417:30
1912.86:407:30
2012.96:397:31
2112.96:387:32
2212.96:377:32
2312.96:367:33
2413.06:357:34
2513.06:357:35
2613.06:347:35
2713.16:337:36
2813.16:327:37
2913.16:317:38
3013.16:307:39
3113.26:297:39

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.18 kWh/m².

For context, solar energy here swings from a low near 2.53 kWh/m² to a high of 6.88 kWh/m² in December across the year — October's 5.18 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.9Bright
84.9Bright
94.9Bright
105.0Bright
115.0Bright
125.0Bright
135.1Bright
145.1Bright
155.2Bright
165.2Bright
175.2Bright
185.3Bright
195.3Bright
205.3Bright
215.4Bright
225.4Bright
235.5Bright
245.5Bright
255.5Bright
265.6Bright
275.6Bright
285.7Bright
295.7Bright
305.8Bright
315.8Bright
Planning a trip in October

Is October a good time to visit Cidreira?

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

6.2
Sightseeing
7th-best month of the year
4.1
Beach & pool
7th-best month of the year

October is a reasonable time to visit Cidreira for sightseeing.

What to pack for Cidreira in October

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

In October, Cidreira sees daytime highs around 22°C and nights near 17°C. Worth packing: rain gear, sun protection and a windbreaker. About 12 days see rain.

rain gearsun protectiona windbreaker

Sea temperature near Cidreira in October

The nearest coast averages about 19°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in February at about 25°C and coldest in August near 16°C.

It's comfortable for a long swim from Nov 9 to May 19 — about 6.3 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb25Warm
Mar24Warm
Apr23Refreshing
May20Refreshing
Jun18Cool
Jul16Cool
Aug16Cool
Sep17Cool
Oct19Cool
Nov20Refreshing
Dec23Refreshing

UV index in Cidreira in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cidreira peaks around January 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateVery highExtremeJan 17UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr7Very high
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct9Very high
Nov11Extreme
Dec12Extreme

Air quality in Cidreira 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 Cidreira is worst in August — around 15 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (February, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1815 µg/m³Feb 207 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb7Good
Mar7Good
Apr8Good
May8Good
Jun8Good
Jul11Good
Aug15Moderate
Sep12Good
Oct9Good
Nov8Good
Dec8Good
Location & terrain

Where is Cidreira?

Cidreira sits at 30.2°S, 50.2°W, 5 m above sea level, in Brazil. The nearest listed city is Tramandaí, 23 km away.

Topography around Cidreira

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

Within 3 km, the terrain around Cidreira has only modest variations in elevation — a maximum elevation change of 17 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 56 m; within 80 km, large variations in elevation — a maximum elevation change of 987 m.

The land around Cidreira is covered by water (46%) within 3 km, water (56%) within 16 km, and water (45%) within 80 km.

3 km
17 m
16 km
56 m
80 km
987 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
October weather nearby: Tramandaí 23 km · Imbé 24 km · Osório 33 km · Xangri-lá 45 km · Santo Antônio da Patrulha 50 km · Capão da Canoa 52 km · Rolante 69 km · Viamão 79 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 Cidreira (-30.1811°, -50.2056°, elevation 5 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).