Piratini weather in September

In September, Piratini sees average daytime highs of 19°C and overnight lows near 10°C, with 145 mm of rain across 10.6 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 19°C through the month. The sky is clear or mostly clear about 28% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of September to 12 h 18 min by month's end. Set against the rest of the year, September is Piratini's 11th-clearest and 1st-windiest month. For the whole year in context, see Piratini's year-round climate.

Daytime high: 19°; 8th warmest
Overnight low: 10°; 4th coldest
Rainfall: 145 mm; 10.6 wet days
Daylight: 11 h 48 min; 7:32 AM – 7:21 PM
Cloud cover: 64%; 11th clearest
Wind: 14 km/h; 1st windiest
Solar energy: 3.99 kWh/m²
Travel score: 5.9; out of 10

← August Piratini 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 19°C through the month.

A typical September day in Piratini reaches about 19°C in the afternoon and slips back to 10°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 25°C. Set against its neighbours, September runs about 1°C warmer than August and about 3°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)	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	20	20	20	20	20	20
Avg low (°C)	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	11	11	11	11	11

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

Piratini weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 1st-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	28° / 18°	134	13.3	13.8	5.9
Feb	27° / 18°	122	12.5	13.1	5.9
Mar	26° / 17°	107	11.2	12.2	6.5
Apr	23° / 14°	121	10.2	11.3	6.8
May	19° / 11°	100	9	10.4	6.2
Jun	17° / 9°	110	9.3	10	5.4
Jul	16° / 8°	118	9.5	10.2	5.2
Aug	18° / 9°	118	9.4	10.9	6.0
Sep	19° / 10°	145	10.6	11.8	5.9
Oct	22° / 12°	144	11.7	12.8	6.3
Nov	24° / 14°	110	9.8	13.6	6.9
Dec	27° / 16°	115	11.2	14	6.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% 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 61%.

	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 (%)	43	41	41	40	40	39	38	38	38	37	38	38	38	38	38	38	39	38	40	40	40	39	39	39	38	38	38	37	37	36
Cloudier (%)	57	59	59	60	60	61	62	62	62	63	62	62	62	62	62	62	61	62	60	60	60	61	61	61	62	62	62	63	63	64

	Clearer (%)	Cloudier (%)
1	43	57
2	41	59
3	41	59
4	40	60
5	40	60
6	39	61
7	38	62
8	38	62
9	38	62
10	37	63
11	38	62
12	38	62
13	38	62
14	38	62
15	38	62
16	38	62
17	39	61
18	38	62
19	40	60
20	40	60
21	40	60
22	39	61
23	39	61
24	39	61
25	38	62
26	38	62
27	38	62
28	37	63
29	37	63
30	36	64

Chance of precipitation in September

Any precipitation

Piratini gets around 145 mm of rain over 10.6 wet days in September, the wettest month. 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 38% on the wettest days.

	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	36	37	37	37	37	37	37	37	36	36	35	35	35	35	34	34	34	34	34	34	34	34	35	35	36	37	37	37	38

	Rain chance (%)
1	36
2	36
3	37
4	37
5	37
6	37
7	37
8	37
9	37
10	36
11	36
12	35
13	35
14	35
15	35
16	34
17	34
18	34
19	34
20	34
21	34
22	34
23	34
24	35
25	35
26	36
27	37
28	37
29	37
30	38

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 64% 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 (%)	64	65	64	64	65	65	65	66	67	67	66	66	67	65	65	66	66	65	65	65	64	63	63	62	61	60	58	58	57	55
Comfortable (%)	22	21	21	21	20	20	20	19	19	19	20	20	20	21	21	21	21	22	22	22	23	24	24	25	25	26	27	27	27	28
Humid (%)	13	13	14	14	14	14	14	14	13	13	13	13	12	12	12	11	11	11	11	11	11	11	11	11	12	12	13	13	14	15
Muggy (%)	1	1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	64	22	13	1
2	65	21	13	1
3	64	21	14	1
4	64	21	14	1
5	65	20	14	1
6	65	20	14	1
7	65	20	14	1
8	66	19	14	1
9	67	19	13	1
10	67	19	13	1
11	66	20	13	1
12	66	20	13	1
13	67	20	12	1
14	65	21	12	2
15	65	21	12	2
16	66	21	11	2
17	66	21	11	2
18	65	22	11	2
19	65	22	11	2
20	65	22	11	2
21	64	23	11	2
22	63	24	11	2
23	63	24	11	2
24	62	25	11	2
25	61	25	12	2
26	60	26	12	2
27	58	27	13	2
28	58	27	13	2
29	57	27	14	2
30	55	28	15	2

Wind in September

Winds average 14 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 14 km/h on the calmest days to 14 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)	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 18 min at the start of September to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over September. Sunrise moves from 7:52 AM to 7:14 AM, and sunset from 7:12 PM to 7:30 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)	11.3	11.4	11.4	11.4	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	11.9	11.9	11.9	12.0	12.0	12.0	12.1	12.1	12.1	12.2	12.2	12.2	12.3
Sunrise (AM)	7:52	7:51	7:50	7:48	7:47	7:46	7:45	7:43	7:42	7:41	7:39	7:38	7:36	7:35	7:34	7:32	7:31	7:30	7:28	7:27	7:26	7:24	7:23	7:22	7:20	7:19	7:18	7:16	7:15	7:14
Sunset (PM)	7:12	7:13	7:13	7:14	7:14	7:15	7:16	7:16	7:17	7:17	7:18	7:19	7:19	7:20	7:20	7:21	7:22	7:22	7:23	7:24	7:24	7:25	7:25	7:26	7:27	7:27	7:28	7:29	7:29	7:30

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.3	7:52	7:12
2	11.4	7:51	7:13
3	11.4	7:50	7:13
4	11.4	7:48	7:14
5	11.5	7:47	7:14
6	11.5	7:46	7:15
7	11.5	7:45	7:16
8	11.6	7:43	7:16
9	11.6	7:42	7:17
10	11.6	7:41	7:17
11	11.6	7:39	7:18
12	11.7	7:38	7:19
13	11.7	7:36	7:19
14	11.7	7:35	7:20
15	11.8	7:34	7:20
16	11.8	7:32	7:21
17	11.8	7:31	7:22
18	11.9	7:30	7:22
19	11.9	7:28	7:23
20	11.9	7:27	7:24
21	12.0	7:26	7:24
22	12.0	7:24	7:25
23	12.0	7:23	7:25
24	12.1	7:22	7:26
25	12.1	7:20	7:27
26	12.1	7:19	7:27
27	12.2	7:18	7:28
28	12.2	7:16	7:29
29	12.2	7:15	7:29
30	12.3	7:14	7:30

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.99 kWh/m².

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 6.62 kWh/m² in December across the year — September's 3.99 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)	3.6	3.6	3.6	3.6	3.7	3.7	3.7	3.7	3.8	3.8	3.8	3.9	3.9	3.9	4.0	4.0	4.0	4.1	4.1	4.2	4.2	4.2	4.3	4.3	4.3	4.3	4.3	4.4	4.4	4.4
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.6	Moderate
2	3.6	Moderate
3	3.6	Moderate
4	3.6	Moderate
5	3.7	Moderate
6	3.7	Moderate
7	3.7	Moderate
8	3.7	Moderate
9	3.8	Moderate
10	3.8	Moderate
11	3.8	Moderate
12	3.9	Moderate
13	3.9	Moderate
14	3.9	Moderate
15	4.0	Moderate
16	4.0	Bright
17	4.0	Bright
18	4.1	Bright
19	4.1	Bright
20	4.2	Bright
21	4.2	Bright
22	4.2	Bright
23	4.3	Bright
24	4.3	Bright
25	4.3	Bright
26	4.3	Bright
27	4.3	Bright
28	4.4	Bright
29	4.4	Bright
30	4.4	Bright

Planning a trip in September

Is September a good time to visit Piratini?

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

5.9

Sightseeing

8th-best month of the year

2.7

Beach & pool

9th-best month of the year

September is a reasonable time to visit Piratini for sightseeing.

What to pack for Piratini in September

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

In September, Piratini sees daytime highs around 19°C and nights near 10°C. Worth packing: rain gear. About 11 days see rain.

rain gear

UV index in Piratini in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Piratini peaks around January 13 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	13	12	10	7	4	3	4	5	7	8	11	13
Level	Extreme	Extreme	Very high	High	Moderate	Moderate	Moderate	Moderate	Very high	Very high	Extreme	Extreme

	UV index (midday)	Level
Jan	13	Extreme
Feb	12	Extreme
Mar	10	Very high
Apr	7	High
May	4	Moderate
Jun	3	Moderate
Jul	4	Moderate
Aug	5	Moderate
Sep	7	Very high
Oct	8	Very high
Nov	11	Extreme
Dec	13	Extreme

Location & terrain

Where is Piratini?

Piratini sits at 31.4°S, 53.1°W, 361 m above sea level, in Brazil. The nearest listed city is Canguçu, 41 km away.

Topography around Piratini

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

Within 3 km, the terrain around Piratini has only modest variations in elevation — a maximum elevation change of 186 m around an average of 313 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 409 m; within 80 km, significant variations in elevation — a maximum elevation change of 507 m.

The land around Piratini is covered by grassland (49%) and trees (38%) within 3 km, trees (45%) and grassland (45%) within 16 km, and trees (50%) and grassland (35%) within 80 km.

3 km

186 m

grassland 49%

16 km

409 m

trees 45%

80 km

507 m

trees 50%

treesgrasslandcroplandartificial surfaces

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

September weather nearby: Canguçu 41 km · Capão do Leão 68 km · Pelotas 81 km · Arroio Grande 88 km · Bagé 96 km · São Lourenço do Sul 107 km · Caçapava do Sul 110 km · Encruzilhada do Sul 115 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 Piratini (-31.4481°, -53.1042°, elevation 361 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. 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	19	10
2	19	10
3	19	10
4	19	10
5	19	10
6	19	10
7	19	10
8	19	10
9	19	10
10	19	10
11	19	10
12	19	10
13	19	10
14	19	10
15	19	10
16	19	10
17	19	10
18	19	10
19	19	10
20	19	10
21	19	10
22	19	10
23	19	10
24	19	10
25	20	10
26	20	11
27	20	11
28	20	11
29	20	11
30	20	11

	Clearer (%)	Cloudier (%)
1	43	57
2	41	59
3	41	59
4	40	60
5	40	60
6	39	61
7	38	62
8	38	62
9	38	62
10	37	63
11	38	62
12	38	62
13	38	62
14	38	62
15	38	62
16	38	62
17	39	61
18	38	62
19	40	60
20	40	60
21	40	60
22	39	61
23	39	61
24	39	61
25	38	62
26	38	62
27	38	62
28	37	63
29	37	63
30	36	64

	Rain chance (%)
1	36
2	36
3	37
4	37
5	37
6	37
7	37
8	37
9	37
10	36
11	36
12	35
13	35
14	35
15	35
16	34
17	34
18	34
19	34
20	34
21	34
22	34
23	34
24	35
25	35
26	36
27	37
28	37
29	37
30	38

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	64	22	13	1
2	65	21	13	1
3	64	21	14	1
4	64	21	14	1
5	65	20	14	1
6	65	20	14	1
7	65	20	14	1
8	66	19	14	1
9	67	19	13	1
10	67	19	13	1
11	66	20	13	1
12	66	20	13	1
13	67	20	12	1
14	65	21	12	2
15	65	21	12	2
16	66	21	11	2
17	66	21	11	2
18	65	22	11	2
19	65	22	11	2
20	65	22	11	2
21	64	23	11	2
22	63	24	11	2
23	63	24	11	2
24	62	25	11	2
25	61	25	12	2
26	60	26	12	2
27	58	27	13	2
28	58	27	13	2
29	57	27	14	2
30	55	28	15	2

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

	Clearer (%)	Cloudier (%)
1	43	57
2	41	59
3	41	59
4	40	60
5	40	60
6	39	61
7	38	62
8	38	62
9	38	62
10	37	63
11	38	62
12	38	62
13	38	62
14	38	62
15	38	62
16	38	62
17	39	61
18	38	62
19	40	60
20	40	60
21	40	60
22	39	61
23	39	61
24	39	61
25	38	62
26	38	62
27	38	62
28	37	63
29	37	63
30	36	64

	Rain chance (%)
1	36
2	36
3	37
4	37
5	37
6	37
7	37
8	37
9	37
10	36
11	36
12	35
13	35
14	35
15	35
16	34
17	34
18	34
19	34
20	34
21	34
22	34
23	34
24	35
25	35
26	36
27	37
28	37
29	37
30	38

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	64	22	13	1
2	65	21	13	1
3	64	21	14	1
4	64	21	14	1
5	65	20	14	1
6	65	20	14	1
7	65	20	14	1
8	66	19	14	1
9	67	19	13	1
10	67	19	13	1
11	66	20	13	1
12	66	20	13	1
13	67	20	12	1
14	65	21	12	2
15	65	21	12	2
16	66	21	11	2
17	66	21	11	2
18	65	22	11	2
19	65	22	11	2
20	65	22	11	2
21	64	23	11	2
22	63	24	11	2
23	63	24	11	2
24	62	25	11	2
25	61	25	12	2
26	60	26	12	2
27	58	27	13	2
28	58	27	13	2
29	57	27	14	2
30	55	28	15	2

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

	Clearer (%)	Cloudier (%)
1	43	57
2	41	59
3	41	59
4	40	60
5	40	60
6	39	61
7	38	62
8	38	62
9	38	62
10	37	63
11	38	62
12	38	62
13	38	62
14	38	62
15	38	62
16	38	62
17	39	61
18	38	62
19	40	60
20	40	60
21	40	60
22	39	61
23	39	61
24	39	61
25	38	62
26	38	62
27	38	62
28	37	63
29	37	63
30	36	64

	Rain chance (%)
1	36
2	36
3	37
4	37
5	37
6	37
7	37
8	37
9	37
10	36
11	36
12	35
13	35
14	35
15	35
16	34
17	34
18	34
19	34
20	34
21	34
22	34
23	34
24	35
25	35
26	36
27	37
28	37
29	37
30	38

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	64	22	13	1
2	65	21	13	1
3	64	21	14	1
4	64	21	14	1
5	65	20	14	1
6	65	20	14	1
7	65	20	14	1
8	66	19	14	1
9	67	19	13	1
10	67	19	13	1
11	66	20	13	1
12	66	20	13	1
13	67	20	12	1
14	65	21	12	2
15	65	21	12	2
16	66	21	11	2
17	66	21	11	2
18	65	22	11	2
19	65	22	11	2
20	65	22	11	2
21	64	23	11	2
22	63	24	11	2
23	63	24	11	2
24	62	25	11	2
25	61	25	12	2
26	60	26	12	2
27	58	27	13	2
28	58	27	13	2
29	57	27	14	2
30	55	28	15	2