Três Barras weather in September

In September, Três Barras sees average daytime highs of 22°C and overnight lows near 12°C, with 155 mm of rain across 11 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 22°C through the month. The sky is clear or mostly clear about 30% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Três Barras's 4th-clearest and 1st-windiest month. For the whole year in context, see Três Barras's year-round climate.

Daytime high: 22°; 8th warmest
Overnight low: 12°; 5th coldest
Rainfall: 155 mm; 11 wet days
Daylight: 11 h 48 min; 7:20 AM – 7:11 PM
Cloud cover: 65%; 4th clearest
Wind: 10 km/h; 1st windiest
Solar energy: 4.24 kWh/m²
Travel score: 6.4; out of 10

← August Três Barras 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 22°C through the month.

A typical September day in Três Barras reaches about 22°C in the afternoon and slips back to 12°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 29°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°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)	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22
Avg low (°C)	11	11	11	11	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	13	13	13	13	13	13	13	13	13	13

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

Três Barras 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	27° / 18°	204	21.1	13.5	4.7
Feb	27° / 18°	171	19.3	12.9	4.7
Mar	26° / 17°	115	15.1	12.2	5.7
Apr	24° / 15°	80	9	11.4	6.8
May	21° / 11°	111	8.9	10.7	6.4
Jun	19° / 10°	115	9.7	10.4	6.2
Jul	19° / 9°	93	8.6	10.5	6.4
Aug	21° / 10°	93	8	11.1	7.0
Sep	22° / 12°	155	11	11.8	6.4
Oct	24° / 14°	164	15.2	12.6	5.9
Nov	25° / 15°	132	14.1	13.3	6.0
Dec	27° / 17°	161	17.2	13.6	5.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% 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 60%. 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 (%)	54	53	52	51	49	47	46	45	44	44	43	42	42	40	41	40	40	38	38	38	36	36	35	35	33	32	32	30	30	30
Cloudier (%)	46	47	48	49	51	53	54	55	56	56	57	58	58	60	59	60	60	62	62	62	64	64	65	65	67	68	68	70	70	70

	Clearer (%)	Cloudier (%)
1	54	46
2	53	47
3	52	48
4	51	49
5	49	51
6	47	53
7	46	54
8	45	55
9	44	56
10	44	56
11	43	57
12	42	58
13	42	58
14	40	60
15	41	59
16	40	60
17	40	60
18	38	62
19	38	62
20	38	62
21	36	64
22	36	64
23	35	65
24	35	65
25	33	67
26	32	68
27	32	68
28	30	70
29	30	70
30	30	70

Chance of precipitation in September

Any precipitation

Três Barras gets around 155 mm of rain over 11 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 36% and peaks near 47% 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 (%)	26	26	26	27	28	28	29	30	31	32	33	34	34	35	36	37	38	39	40	41	42	42	43	44	44	45	45	46	46	47

	Rain chance (%)
1	26
2	26
3	26
4	27
5	28
6	28
7	29
8	30
9	31
10	32
11	33
12	34
13	34
14	35
15	36
16	37
17	38
18	39
19	40
20	41
21	42
22	42
23	43
24	44
25	44
26	45
27	45
28	46
29	46
30	47

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 48% 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 (%)	57	55	55	54	53	53	51	51	51	50	49	49	48	48	48	47	47	47	47	47	47	46	45	44	43	42	41	40	39	38
Comfortable (%)	37	38	38	38	38	38	39	39	39	39	39	39	39	39	39	38	38	38	37	37	37	37	37	37	37	37	37	37	37	36
Humid (%)	6	7	7	8	9	9	10	10	10	11	11	11	12	13	13	14	14	14	15	15	16	17	17	18	19	20	21	22	23	24
Muggy (%)	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	57	37	6	0
2	55	38	7	0
3	55	38	7	0
4	54	38	8	0
5	53	38	9	0
6	53	38	9	0
7	51	39	10	0
8	51	39	10	0
9	51	39	10	0
10	50	39	11	0
11	49	39	11	0
12	49	39	11	0
13	48	39	12	1
14	48	39	13	1
15	48	39	13	1
16	47	38	14	1
17	47	38	14	1
18	47	38	14	1
19	47	37	15	1
20	47	37	15	1
21	47	37	16	1
22	46	37	17	1
23	45	37	17	1
24	44	37	18	1
25	43	37	19	1
26	42	37	20	1
27	41	37	21	1
28	40	37	22	1
29	39	37	23	1
30	38	36	24	1

Wind in September

Winds average 10 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 10 km/h on the calmest days to 10 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)	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10
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	10	calm
2	10	calm
3	10	calm
4	10	calm
5	10	calm
6	10	calm
7	10	calm
8	10	calm
9	10	calm
10	10	calm
11	10	calm
12	10	calm
13	10	calm
14	10	calm
15	10	calm
16	10	calm
17	10	calm
18	10	calm
19	10	calm
20	10	calm
21	10	calm
22	10	calm
23	10	calm
24	10	calm
25	10	calm
26	10	calm
27	10	calm
28	10	calm
29	10	calm
30	10	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 30 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 42 minutes over September. Sunrise moves from 7:37 AM to 7:04 AM, and sunset from 7:05 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)	11.5	11.5	11.5	11.5	11.6	11.6	11.6	11.6	11.7	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	7:31	7:29	7:28	7:27	7:26	7:25	7:24	7:22	7:21	7:20	7:19	7:18	7:17	7:16	7:14	7:13	7:12	7:11	7:10	7:09	7:07	7:06	7:05	7:04
Sunset (PM)	7:05	7:05	7:06	7:06	7:07	7:07	7:07	7:08	7:08	7:09	7:09	7:09	7:10	7:10	7:11	7:11	7:11	7:12	7:12	7:13	7:13	7:14	7:14	7:14	7:15	7:15	7:16	7:16	7:17	7:17

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.5	7:37	7:05
2	11.5	7:36	7:05
3	11.5	7:35	7:06
4	11.5	7:34	7:06
5	11.6	7:33	7:07
6	11.6	7:32	7:07
7	11.6	7:31	7:07
8	11.6	7:29	7:08
9	11.7	7:28	7:08
10	11.7	7:27	7:09
11	11.7	7:26	7:09
12	11.7	7:25	7:09
13	11.8	7:24	7:10
14	11.8	7:22	7:10
15	11.8	7:21	7:11
16	11.8	7:20	7:11
17	11.9	7:19	7:11
18	11.9	7:18	7:12
19	11.9	7:17	7:12
20	12.0	7:16	7:13
21	12.0	7:14	7:13
22	12.0	7:13	7:14
23	12.0	7:12	7:14
24	12.1	7:11	7:14
25	12.1	7:10	7:15
26	12.1	7:09	7:15
27	12.1	7:07	7:16
28	12.2	7:06	7:16
29	12.2	7:05	7:17
30	12.2	7:04	7:17

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.24 kWh/m².

For context, solar energy here swings from a low near 2.72 kWh/m² to a high of 5.74 kWh/m² in December across the year — September's 4.24 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)	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.2	4.2	4.2	4.2	4.3	4.3	4.3
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.3	Bright
2	4.3	Bright
3	4.3	Bright
4	4.3	Bright
5	4.3	Bright
6	4.3	Bright
7	4.3	Bright
8	4.3	Bright
9	4.3	Bright
10	4.3	Bright
11	4.3	Bright
12	4.3	Bright
13	4.3	Bright
14	4.3	Bright
15	4.3	Bright
16	4.3	Bright
17	4.3	Bright
18	4.3	Bright
19	4.3	Bright
20	4.3	Bright
21	4.3	Bright
22	4.3	Bright
23	4.3	Bright
24	4.2	Bright
25	4.2	Bright
26	4.2	Bright
27	4.2	Bright
28	4.3	Bright
29	4.3	Bright
30	4.3	Bright

Planning a trip in September

Is September a good time to visit Três Barras?

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

6.4

Sightseeing

3rd-best month of the year

4.7

Beach & pool

8th-best month of the year

September is a reasonable time to visit Três Barras for sightseeing.

What to pack for Três Barras in September

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

In September, Três Barras sees daytime highs around 22°C and nights near 12°C. Worth packing: light clothes and rain gear. About 11 days see rain.

light clothesrain gear

UV index in Três Barras in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Três Barras peaks around January 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (high).

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	12	9	6	5	5	6	8	11	13	14
Level	Extreme	Extreme	Extreme	Very high	High	High	High	High	Very high	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	15	Extreme
Feb	14	Extreme
Mar	12	Extreme
Apr	9	Very high
May	6	High
Jun	5	High
Jul	5	High
Aug	6	High
Sep	8	Very high
Oct	11	Extreme
Nov	13	Extreme
Dec	14	Extreme

Air quality in Três Barras 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 Três Barras is worst in September — around 15 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (March, 7 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	7	7	8	8	8	10	12	15	10	8	7
Level	Good	Good	Good	Good	Good	Good	Good	Moderate	Moderate	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	7	Good
Feb	7	Good
Mar	7	Good
Apr	8	Good
May	8	Good
Jun	8	Good
Jul	10	Good
Aug	12	Moderate
Sep	15	Moderate
Oct	10	Good
Nov	8	Good
Dec	7	Good

Location & terrain

Where is Três Barras?

Três Barras sits at 26.1°S, 50.3°W, 767 m above sea level, in Brazil. The nearest listed city is Canoinhas, 10 km away.

Topography around Três Barras

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

Within 3 km, the terrain around Três Barras has only modest variations in elevation — a maximum elevation change of 78 m around an average of 774 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 140 m; within 80 km, large variations in elevation — a maximum elevation change of 1,064 m.

The land around Três Barras is covered by trees (44%), cropland (24%) and grassland (21%) within 3 km, trees (58%) and cropland (29%) within 16 km, and trees (67%) and cropland (27%) within 80 km.

3 km

78 m

trees 44%

16 km

140 m

trees 58%

80 km

1,064 m

trees 67%

treesgrasslandcroplandartificial surfacesbare terrainwater

← August Três Barras year-round climate October →Best places to visit in September

September weather nearby: Canoinhas 10 km · São Mateus do Sul 27 km · Papanduva 34 km · Itaiópolis 49 km · Mafra 52 km · Rio Negro 52 km · Lapa 71 km · Porto União 77 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 Três Barras (-26.1064°, -50.3222°, elevation 767 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	22	11
2	22	11
3	22	11
4	22	11
5	22	12
6	22	12
7	22	12
8	22	12
9	22	12
10	22	12
11	22	12
12	22	12
13	22	12
14	22	12
15	22	12
16	22	12
17	22	12
18	22	12
19	22	12
20	22	12
21	22	13
22	22	13
23	22	13
24	22	13
25	22	13
26	22	13
27	22	13
28	22	13
29	22	13
30	22	13

	Clearer (%)	Cloudier (%)
1	54	46
2	53	47
3	52	48
4	51	49
5	49	51
6	47	53
7	46	54
8	45	55
9	44	56
10	44	56
11	43	57
12	42	58
13	42	58
14	40	60
15	41	59
16	40	60
17	40	60
18	38	62
19	38	62
20	38	62
21	36	64
22	36	64
23	35	65
24	35	65
25	33	67
26	32	68
27	32	68
28	30	70
29	30	70
30	30	70

	Rain chance (%)
1	26
2	26
3	26
4	27
5	28
6	28
7	29
8	30
9	31
10	32
11	33
12	34
13	34
14	35
15	36
16	37
17	38
18	39
19	40
20	41
21	42
22	42
23	43
24	44
25	44
26	45
27	45
28	46
29	46
30	47

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	57	37	6	0
2	55	38	7	0
3	55	38	7	0
4	54	38	8	0
5	53	38	9	0
6	53	38	9	0
7	51	39	10	0
8	51	39	10	0
9	51	39	10	0
10	50	39	11	0
11	49	39	11	0
12	49	39	11	0
13	48	39	12	1
14	48	39	13	1
15	48	39	13	1
16	47	38	14	1
17	47	38	14	1
18	47	38	14	1
19	47	37	15	1
20	47	37	15	1
21	47	37	16	1
22	46	37	17	1
23	45	37	17	1
24	44	37	18	1
25	43	37	19	1
26	42	37	20	1
27	41	37	21	1
28	40	37	22	1
29	39	37	23	1
30	38	36	24	1

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

	Clearer (%)	Cloudier (%)
1	54	46
2	53	47
3	52	48
4	51	49
5	49	51
6	47	53
7	46	54
8	45	55
9	44	56
10	44	56
11	43	57
12	42	58
13	42	58
14	40	60
15	41	59
16	40	60
17	40	60
18	38	62
19	38	62
20	38	62
21	36	64
22	36	64
23	35	65
24	35	65
25	33	67
26	32	68
27	32	68
28	30	70
29	30	70
30	30	70

	Rain chance (%)
1	26
2	26
3	26
4	27
5	28
6	28
7	29
8	30
9	31
10	32
11	33
12	34
13	34
14	35
15	36
16	37
17	38
18	39
19	40
20	41
21	42
22	42
23	43
24	44
25	44
26	45
27	45
28	46
29	46
30	47

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	57	37	6	0
2	55	38	7	0
3	55	38	7	0
4	54	38	8	0
5	53	38	9	0
6	53	38	9	0
7	51	39	10	0
8	51	39	10	0
9	51	39	10	0
10	50	39	11	0
11	49	39	11	0
12	49	39	11	0
13	48	39	12	1
14	48	39	13	1
15	48	39	13	1
16	47	38	14	1
17	47	38	14	1
18	47	38	14	1
19	47	37	15	1
20	47	37	15	1
21	47	37	16	1
22	46	37	17	1
23	45	37	17	1
24	44	37	18	1
25	43	37	19	1
26	42	37	20	1
27	41	37	21	1
28	40	37	22	1
29	39	37	23	1
30	38	36	24	1

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

	Clearer (%)	Cloudier (%)
1	54	46
2	53	47
3	52	48
4	51	49
5	49	51
6	47	53
7	46	54
8	45	55
9	44	56
10	44	56
11	43	57
12	42	58
13	42	58
14	40	60
15	41	59
16	40	60
17	40	60
18	38	62
19	38	62
20	38	62
21	36	64
22	36	64
23	35	65
24	35	65
25	33	67
26	32	68
27	32	68
28	30	70
29	30	70
30	30	70

	Rain chance (%)
1	26
2	26
3	26
4	27
5	28
6	28
7	29
8	30
9	31
10	32
11	33
12	34
13	34
14	35
15	36
16	37
17	38
18	39
19	40
20	41
21	42
22	42
23	43
24	44
25	44
26	45
27	45
28	46
29	46
30	47

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	57	37	6	0
2	55	38	7	0
3	55	38	7	0
4	54	38	8	0
5	53	38	9	0
6	53	38	9	0
7	51	39	10	0
8	51	39	10	0
9	51	39	10	0
10	50	39	11	0
11	49	39	11	0
12	49	39	11	0
13	48	39	12	1
14	48	39	13	1
15	48	39	13	1
16	47	38	14	1
17	47	38	14	1
18	47	38	14	1
19	47	37	15	1
20	47	37	15	1
21	47	37	16	1
22	46	37	17	1
23	45	37	17	1
24	44	37	18	1
25	43	37	19	1
26	42	37	20	1
27	41	37	21	1
28	40	37	22	1
29	39	37	23	1
30	38	36	24	1