Otacílio Costa weather in September

In September, Otacílio Costa sees average daytime highs of 20°C and overnight lows near 11°C, with 178 mm of rain across 13.9 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 20°C through the month. The sky is clear or mostly clear about 22% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 24 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Otacílio Costa's 7th-clearest and 2nd-windiest month. For the whole year in context, see Otacílio Costa's year-round climate.

Daytime high: 20°; 8th warmest
Overnight low: 11°; 5th coldest
Rainfall: 178 mm; 13.9 wet days
Daylight: 11 h 48 min; 7:20 AM – 7:10 PM
Cloud cover: 70%; 7th clearest
Wind: 8 km/h; 2nd windiest
Solar energy: 3.92 kWh/m²
Travel score: 5.6; out of 10

Otacílio Costa is human settlement in Brazil.

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

← August Otacílio Costa year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 20°C through the month.

A typical September day in Otacílio Costa reaches about 20°C in the afternoon and slips back to 11°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 26°C. Set against its neighbours, September runs about 1°C warmer than August and about 2°C cooler than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20
Avg low (°C)	10	10	10	10	10	10	10	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	12	12	12	12	12

	Avg high (°C)	Avg low (°C)
1	20	10
2	20	10
3	20	10
4	20	10
5	20	10
6	20	10
7	20	10
8	20	11
9	20	11
10	20	11
11	20	11
12	20	11
13	20	11
14	20	11
15	20	11
16	20	11
17	20	11
18	20	11
19	20	11
20	20	11
21	20	11
22	20	11
23	20	11
24	20	11
25	20	11
26	20	12
27	20	12
28	20	12
29	20	12
30	20	12

Otacílio Costa weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	26° / 17°	229	21.7	13.5	4.8
Feb	26° / 17°	201	19.6	13	4.8
Mar	25° / 16°	144	17.8	12.2	5.5
Apr	22° / 14°	104	11.5	11.4	6.3
May	19° / 10°	129	10.6	10.7	5.9
Jun	17° / 9°	129	10.6	10.3	5.5
Jul	17° / 8°	120	10.6	10.4	5.4
Aug	19° / 9°	112	10	11	6.1
Sep	20° / 11°	178	13.9	11.8	5.6
Oct	22° / 13°	200	17.7	12.7	5.2
Nov	24° / 14°	160	17	13.4	5.6
Dec	26° / 16°	191	18.4	13.7	5.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 66%. Skies tend to cloud over as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	46	45	44	42	41	39	38	37	36	35	34	34	34	33	33	33	31	32	32	31	31	31	30	29	28	28	28	27	26	26
Cloudier (%)	54	55	56	58	59	61	62	63	64	65	66	66	66	67	67	67	69	68	68	69	69	69	70	71	72	72	72	73	74	74

	Clearer (%)	Cloudier (%)
1	46	54
2	45	55
3	44	56
4	42	58
5	41	59
6	39	61
7	38	62
8	37	63
9	36	64
10	35	65
11	34	66
12	34	66
13	34	66
14	33	67
15	33	67
16	33	67
17	31	69
18	32	68
19	32	68
20	31	69
21	31	69
22	31	69
23	30	70
24	29	71
25	28	72
26	28	72
27	28	72
28	27	73
29	26	74
30	26	74

Chance of precipitation in September

Any precipitation

Otacílio Costa gets around 178 mm of rain over 13.9 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 45% and peaks near 53% on the wettest days. The odds climb toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	36	37	37	38	39	39	40	41	42	42	43	43	44	44	45	45	46	47	47	48	49	50	50	51	51	52	52	53	53	53

	Rain chance (%)
1	36
2	37
3	37
4	38
5	39
6	39
7	40
8	41
9	42
10	42
11	43
12	43
13	44
14	44
15	45
16	45
17	46
18	47
19	47
20	48
21	49
22	50
23	50
24	51
25	51
26	52
27	52
28	53
29	53
30	53

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 53% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	58	57	56	56	56	54	54	54	54	54	54	54	54	54	53	53	53	53	53	53	54	54	53	52	51	51	49	48	48	47
Comfortable (%)	34	35	35	35	35	36	36	36	36	36	36	36	36	36	36	36	36	36	36	36	35	35	35	36	36	36	37	37	37	37
Humid (%)	8	8	9	9	9	10	10	10	10	10	10	10	10	10	11	11	11	11	11	11	11	11	12	12	13	13	14	14	15	16

	Dry (%)	Comfortable (%)	Humid (%)
1	58	34	8
2	57	35	8
3	56	35	9
4	56	35	9
5	56	35	9
6	54	36	10
7	54	36	10
8	54	36	10
9	54	36	10
10	54	36	10
11	54	36	10
12	54	36	10
13	54	36	10
14	54	36	10
15	53	36	11
16	53	36	11
17	53	36	11
18	53	36	11
19	53	36	11
20	53	36	11
21	54	35	11
22	54	35	11
23	53	35	12
24	52	36	12
25	51	36	13
26	51	36	13
27	49	37	14
28	48	37	14
29	48	37	15
30	47	37	16

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	8	calm
2	8	calm
3	8	calm
4	8	calm
5	8	calm
6	8	calm
7	8	calm
8	8	calm
9	8	calm
10	8	calm
11	8	calm
12	8	calm
13	8	calm
14	8	calm
15	8	calm
16	8	calm
17	8	calm
18	8	calm
19	8	calm
20	8	calm
21	8	calm
22	8	calm
23	8	calm
24	8	calm
25	8	calm
26	8	calm
27	8	calm
28	8	calm
29	8	calm
30	8	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 24 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over September. Sunrise moves from 7:37 AM to 7:03 AM, and sunset from 7:03 PM to 7:17 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	11.4	11.5	11.5	11.5	11.5	11.6	11.6	11.6	11.6	11.7	11.7	11.7	11.8	11.8	11.8	11.8	11.9	11.9	11.9	12.0	12.0	12.0	12.0	12.1	12.1	12.1	12.1	12.2	12.2	12.2
Sunrise (AM)	7:37	7:36	7:35	7:34	7:33	7:32	7:30	7:29	7:28	7:27	7:26	7:24	7:23	7:22	7:21	7:20	7:18	7:17	7:16	7:15	7:14	7:12	7:11	7:10	7:09	7:08	7:06	7:05	7:04	7:03
Sunset (PM)	7:03	7:03	7:04	7:04	7:05	7:05	7:06	7:06	7:07	7:07	7:08	7:08	7:09	7:09	7:10	7:10	7:10	7:11	7:11	7:12	7:12	7:13	7:13	7:14	7:14	7:15	7:15	7:16	7:16	7:17

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.4	7:37	7:03
2	11.5	7:36	7:03
3	11.5	7:35	7:04
4	11.5	7:34	7:04
5	11.5	7:33	7:05
6	11.6	7:32	7:05
7	11.6	7:30	7:06
8	11.6	7:29	7:06
9	11.6	7:28	7:07
10	11.7	7:27	7:07
11	11.7	7:26	7:08
12	11.7	7:24	7:08
13	11.8	7:23	7:09
14	11.8	7:22	7:09
15	11.8	7:21	7:10
16	11.8	7:20	7:10
17	11.9	7:18	7:10
18	11.9	7:17	7:11
19	11.9	7:16	7:11
20	12.0	7:15	7:12
21	12.0	7:14	7:12
22	12.0	7:12	7:13
23	12.0	7:11	7:13
24	12.1	7:10	7:14
25	12.1	7:09	7:14
26	12.1	7:08	7:15
27	12.1	7:06	7:15
28	12.2	7:05	7:16
29	12.2	7:04	7:16
30	12.2	7:03	7:17

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.92 kWh/m².

For context, solar energy here swings from a low near 2.52 kWh/m² to a high of 5.74 kWh/m² in December across the year — September's 3.92 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	3.9	Moderate
2	3.9	Moderate
3	3.9	Moderate
4	3.9	Moderate
5	3.9	Moderate
6	3.9	Moderate
7	3.9	Moderate
8	3.9	Moderate
9	3.9	Moderate
10	3.9	Moderate
11	3.9	Moderate
12	3.9	Moderate
13	3.9	Moderate
14	4.0	Moderate
15	4.0	Moderate
16	4.0	Moderate
17	4.0	Moderate
18	4.0	Moderate
19	4.0	Moderate
20	4.0	Moderate
21	4.0	Moderate
22	4.0	Moderate
23	4.0	Moderate
24	4.0	Moderate
25	4.0	Moderate
26	4.0	Moderate
27	4.0	Moderate
28	4.0	Moderate
29	4.0	Moderate
30	4.0	Moderate

Planning a trip in September

Is September a good time to visit Otacílio Costa?

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

5.6

Sightseeing

4th-best month of the year

2.9

Beach & pool

8th-best month of the year

September is a reasonable time to visit Otacílio Costa for sightseeing.

What to pack for Otacílio Costa in September

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

In September, Otacílio Costa sees daytime highs around 20°C and nights near 11°C. Pack rain gear. About 14 days see rain.

rain gear

UV index in Otacílio Costa in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Otacílio Costa peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 5 (moderate).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	15	14	11	8	6	5	5	6	8	8	12	13
Level	Extreme	Extreme	Extreme	Very high	High	Moderate	Moderate	High	Very high	Very high	Extreme	Extreme

	UV index (midday)	Level
Jan	15	Extreme
Feb	14	Extreme
Mar	11	Extreme
Apr	8	Very high
May	6	High
Jun	5	Moderate
Jul	5	Moderate
Aug	6	High
Sep	8	Very high
Oct	8	Very high
Nov	12	Extreme
Dec	13	Extreme

Air quality in Otacílio Costa in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Otacílio Costa is worst in August — around 16 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (March, 6 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	7	6	6	7	6	6	9	16	14	8	7	7
Level	Good	Good	Good	Good	Good	Good	Good	Moderate	Moderate	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	7	Good
Feb	6	Good
Mar	6	Good
Apr	7	Good
May	6	Good
Jun	6	Good
Jul	9	Good
Aug	16	Moderate
Sep	14	Moderate
Oct	8	Good
Nov	7	Good
Dec	7	Good

Location & terrain

Where is Otacílio Costa?

Otacílio Costa sits at 27.5°S, 50.1°W, 877 m above sea level, in Brazil. The nearest listed city is Correia Pinto, 26 km away.

Topography around Otacílio Costa

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

Within 3 km, the terrain around Otacílio Costa has only modest variations in elevation — a maximum elevation change of 73 m around an average of 852 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 640 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,635 m.

The land around Otacílio Costa is covered by trees (68%) within 3 km, trees (72%) within 16 km, and trees (65%) and grassland (24%) within 80 km.

3 km

73 m

trees 68%

16 km

640 m

trees 72%

80 km

1,635 m

trees 65%

treesgrasslandcroplandartificial surfaces

← August Otacílio Costa year-round climate October →Best places to visit in September

September weather nearby: Correia Pinto 26 km · Pouso Redondo 31 km · Lages 42 km · Taió 43 km · Curitibanos 51 km · Ituporanga 52 km · Rio do Sul 56 km · Santa Cecília 65 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

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 Otacílio Costa (-27.4831°, -50.1219°, elevation 877 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).

	Avg high (°C)	Avg low (°C)
1	20	10
2	20	10
3	20	10
4	20	10
5	20	10
6	20	10
7	20	10
8	20	11
9	20	11
10	20	11
11	20	11
12	20	11
13	20	11
14	20	11
15	20	11
16	20	11
17	20	11
18	20	11
19	20	11
20	20	11
21	20	11
22	20	11
23	20	11
24	20	11
25	20	11
26	20	12
27	20	12
28	20	12
29	20	12
30	20	12

	Clearer (%)	Cloudier (%)
1	46	54
2	45	55
3	44	56
4	42	58
5	41	59
6	39	61
7	38	62
8	37	63
9	36	64
10	35	65
11	34	66
12	34	66
13	34	66
14	33	67
15	33	67
16	33	67
17	31	69
18	32	68
19	32	68
20	31	69
21	31	69
22	31	69
23	30	70
24	29	71
25	28	72
26	28	72
27	28	72
28	27	73
29	26	74
30	26	74

	Rain chance (%)
1	36
2	37
3	37
4	38
5	39
6	39
7	40
8	41
9	42
10	42
11	43
12	43
13	44
14	44
15	45
16	45
17	46
18	47
19	47
20	48
21	49
22	50
23	50
24	51
25	51
26	52
27	52
28	53
29	53
30	53

	Dry (%)	Comfortable (%)	Humid (%)
1	58	34	8
2	57	35	8
3	56	35	9
4	56	35	9
5	56	35	9
6	54	36	10
7	54	36	10
8	54	36	10
9	54	36	10
10	54	36	10
11	54	36	10
12	54	36	10
13	54	36	10
14	54	36	10
15	53	36	11
16	53	36	11
17	53	36	11
18	53	36	11
19	53	36	11
20	53	36	11
21	54	35	11
22	54	35	11
23	53	35	12
24	52	36	12
25	51	36	13
26	51	36	13
27	49	37	14
28	48	37	14
29	48	37	15
30	47	37	16

	Avg high (°C)	Avg low (°C)
1	20	10
2	20	10
3	20	10
4	20	10
5	20	10
6	20	10
7	20	10
8	20	11
9	20	11
10	20	11
11	20	11
12	20	11
13	20	11
14	20	11
15	20	11
16	20	11
17	20	11
18	20	11
19	20	11
20	20	11
21	20	11
22	20	11
23	20	11
24	20	11
25	20	11
26	20	12
27	20	12
28	20	12
29	20	12
30	20	12

	Clearer (%)	Cloudier (%)
1	46	54
2	45	55
3	44	56
4	42	58
5	41	59
6	39	61
7	38	62
8	37	63
9	36	64
10	35	65
11	34	66
12	34	66
13	34	66
14	33	67
15	33	67
16	33	67
17	31	69
18	32	68
19	32	68
20	31	69
21	31	69
22	31	69
23	30	70
24	29	71
25	28	72
26	28	72
27	28	72
28	27	73
29	26	74
30	26	74

	Rain chance (%)
1	36
2	37
3	37
4	38
5	39
6	39
7	40
8	41
9	42
10	42
11	43
12	43
13	44
14	44
15	45
16	45
17	46
18	47
19	47
20	48
21	49
22	50
23	50
24	51
25	51
26	52
27	52
28	53
29	53
30	53

	Dry (%)	Comfortable (%)	Humid (%)
1	58	34	8
2	57	35	8
3	56	35	9
4	56	35	9
5	56	35	9
6	54	36	10
7	54	36	10
8	54	36	10
9	54	36	10
10	54	36	10
11	54	36	10
12	54	36	10
13	54	36	10
14	54	36	10
15	53	36	11
16	53	36	11
17	53	36	11
18	53	36	11
19	53	36	11
20	53	36	11
21	54	35	11
22	54	35	11
23	53	35	12
24	52	36	12
25	51	36	13
26	51	36	13
27	49	37	14
28	48	37	14
29	48	37	15
30	47	37	16

	Avg high (°C)	Avg low (°C)
1	20	10
2	20	10
3	20	10
4	20	10
5	20	10
6	20	10
7	20	10
8	20	11
9	20	11
10	20	11
11	20	11
12	20	11
13	20	11
14	20	11
15	20	11
16	20	11
17	20	11
18	20	11
19	20	11
20	20	11
21	20	11
22	20	11
23	20	11
24	20	11
25	20	11
26	20	12
27	20	12
28	20	12
29	20	12
30	20	12

	Clearer (%)	Cloudier (%)
1	46	54
2	45	55
3	44	56
4	42	58
5	41	59
6	39	61
7	38	62
8	37	63
9	36	64
10	35	65
11	34	66
12	34	66
13	34	66
14	33	67
15	33	67
16	33	67
17	31	69
18	32	68
19	32	68
20	31	69
21	31	69
22	31	69
23	30	70
24	29	71
25	28	72
26	28	72
27	28	72
28	27	73
29	26	74
30	26	74

	Rain chance (%)
1	36
2	37
3	37
4	38
5	39
6	39
7	40
8	41
9	42
10	42
11	43
12	43
13	44
14	44
15	45
16	45
17	46
18	47
19	47
20	48
21	49
22	50
23	50
24	51
25	51
26	52
27	52
28	53
29	53
30	53

	Dry (%)	Comfortable (%)	Humid (%)
1	58	34	8
2	57	35	8
3	56	35	9
4	56	35	9
5	56	35	9
6	54	36	10
7	54	36	10
8	54	36	10
9	54	36	10
10	54	36	10
11	54	36	10
12	54	36	10
13	54	36	10
14	54	36	10
15	53	36	11
16	53	36	11
17	53	36	11
18	53	36	11
19	53	36	11
20	53	36	11
21	54	35	11
22	54	35	11
23	53	35	12
24	52	36	12
25	51	36	13
26	51	36	13
27	49	37	14
28	48	37	14
29	48	37	15
30	47	37	16