Santa Cruz do Sul weather in September

In September, Santa Cruz do Sul sees average daytime highs of 22°C and overnight lows near 12°C, with 161 mm of rain across 11.7 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 2nd-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 24 min at the start of September to 12 h 18 min by month's end. Set against the rest of the year, September is Santa Cruz do Sul's 11th-clearest and 1st-windiest month. For the whole year in context, see Santa Cruz do Sul's year-round climate.

Daytime high: 22°; 8th warmest
Overnight low: 12°; 5th coldest
Rainfall: 161 mm; 11.7 wet days
Daylight: 11 h 48 min; 7:29 AM – 7:19 PM
Cloud cover: 63%; 11th clearest
Wind: 10 km/h; 1st windiest
Solar energy: 4.07 kWh/m²
Travel score: 6.3; out of 10

Santa Cruz do Sul is human settlement in Brazil.

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

← August Santa Cruz do Sul 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 Santa Cruz do Sul 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 16°C and 28°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)	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	23	23
Avg low (°C)	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	13	13	13	13	13	13

	Avg high (°C)	Avg low (°C)
1	22	12
2	22	12
3	22	12
4	22	12
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	12
22	22	12
23	22	12
24	22	12
25	22	13
26	22	13
27	22	13
28	22	13
29	23	13
30	23	13

Santa Cruz do Sul weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	30° / 20°	155	15	13.7	4.5
Feb	29° / 19°	139	14	13.1	4.7
Mar	28° / 18°	120	12.4	12.2	5.7
Apr	25° / 15°	127	10.1	11.3	6.7
May	21° / 12°	123	9.8	10.5	6.5
Jun	19° / 10°	131	10.1	10.1	6.0
Jul	19° / 9°	154	10.7	10.3	6.0
Aug	21° / 11°	125	10.2	10.9	6.5
Sep	22° / 12°	161	11.7	11.8	6.3
Oct	24° / 14°	199	13.5	12.7	6.2
Nov	27° / 16°	135	11.5	13.5	6.3
Dec	29° / 18°	152	13.1	13.9	5.1

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 59%. 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 (%)	45	45	45	42	41	40	40	39	39	39	40	40	40	39	40	41	42	42	42	42	42	43	43	43	42	42	40	40	39	37
Cloudier (%)	55	55	55	58	59	60	60	61	61	61	60	60	60	61	60	59	58	58	58	58	58	57	57	57	58	58	60	60	61	63

	Clearer (%)	Cloudier (%)
1	45	55
2	45	55
3	45	55
4	42	58
5	41	59
6	40	60
7	40	60
8	39	61
9	39	61
10	39	61
11	40	60
12	40	60
13	40	60
14	39	61
15	40	60
16	41	59
17	42	58
18	42	58
19	42	58
20	42	58
21	42	58
22	43	57
23	43	57
24	43	57
25	42	58
26	42	58
27	40	60
28	40	60
29	39	61
30	37	63

Chance of precipitation in September

Any precipitation

Santa Cruz do Sul gets around 161 mm of rain over 11.7 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 39% and peaks near 42% 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 (%)	37	37	37	37	37	38	38	38	38	38	38	38	38	39	39	39	39	40	40	40	40	40	40	41	41	41	42	42	42	42

	Rain chance (%)
1	37
2	37
3	37
4	37
5	37
6	38
7	38
8	38
9	38
10	38
11	38
12	38
13	38
14	39
15	39
16	39
17	39
18	40
19	40
20	40
21	40
22	40
23	40
24	41
25	41
26	41
27	42
28	42
29	42
30	42

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 44% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

	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 (%)	49	48	48	48	47	47	47	46	46	45	45	44	44	43	43	43	43	43	44	44	43	43	43	42	41	41	40	39	39	38
Comfortable (%)	24	24	24	24	24	25	25	25	26	26	26	27	27	27	27	27	27	26	26	26	26	26	26	26	26	26	26	26	27	27
Humid (%)	23	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	25	25	25	24	24	24
Muggy (%)	4	4	4	4	4	4	5	5	5	5	5	5	5	5	6	6	6	6	6	6	7	7	7	8	8	8	9	10	10	11

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

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 24 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 54 minutes over September. Sunrise moves from 7:48 AM to 7:11 AM, and sunset from 7:11 PM to 7:27 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	11.4	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	11.9	12.0	12.0	12.0	12.1	12.1	12.1	12.2	12.2	12.2	12.3
Sunrise (AM)	7:48	7:47	7:46	7:45	7:43	7:42	7:41	7:40	7:38	7:37	7:36	7:34	7:33	7:32	7:31	7:29	7:28	7:27	7:25	7:24	7:23	7:22	7:20	7:19	7:18	7:16	7:15	7:14	7:13	7:11
Sunset (PM)	7:11	7:11	7:12	7:12	7:13	7:13	7:14	7:14	7:15	7:15	7:16	7:17	7:17	7:18	7:18	7:19	7:19	7:20	7:20	7:21	7:21	7:22	7:23	7:23	7:24	7:24	7:25	7:25	7:26	7:27

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.4	7:48	7:11
2	11.4	7:47	7:11
3	11.4	7:46	7:12
4	11.5	7:45	7:12
5	11.5	7:43	7:13
6	11.5	7:42	7:13
7	11.6	7:41	7:14
8	11.6	7:40	7:14
9	11.6	7:38	7:15
10	11.6	7:37	7:15
11	11.7	7:36	7:16
12	11.7	7:34	7:17
13	11.7	7:33	7:17
14	11.8	7:32	7:18
15	11.8	7:31	7:18
16	11.8	7:29	7:19
17	11.9	7:28	7:19
18	11.9	7:27	7:20
19	11.9	7:25	7:20
20	11.9	7:24	7:21
21	12.0	7:23	7:21
22	12.0	7:22	7:22
23	12.0	7:20	7:23
24	12.1	7:19	7:23
25	12.1	7:18	7:24
26	12.1	7:16	7:24
27	12.2	7:15	7:25
28	12.2	7:14	7:25
29	12.2	7:13	7:26
30	12.3	7:11	7:27

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.07 kWh/m².

For context, solar energy here swings from a low near 2.39 kWh/m² to a high of 6.49 kWh/m² in December across the year — September's 4.07 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)	3.8	3.8	3.8	3.8	3.8	3.8	3.9	3.9	3.9	3.9	3.9	4.0	4.0	4.0	4.0	4.1	4.1	4.1	4.2	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	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.8	Moderate
2	3.8	Moderate
3	3.8	Moderate
4	3.8	Moderate
5	3.8	Moderate
6	3.8	Moderate
7	3.9	Moderate
8	3.9	Moderate
9	3.9	Moderate
10	3.9	Moderate
11	3.9	Moderate
12	4.0	Moderate
13	4.0	Moderate
14	4.0	Bright
15	4.0	Bright
16	4.1	Bright
17	4.1	Bright
18	4.1	Bright
19	4.2	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 Santa Cruz do Sul?

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

6.3

Sightseeing

4th-best month of the year

4.4

Beach & pool

8th-best month of the year

September is a reasonable time to visit Santa Cruz do Sul for sightseeing.

What to pack for Santa Cruz do Sul in September

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

In September, Santa Cruz do Sul sees daytime highs around 22°C and nights near 12°C. Worth packing: rain gear. About 12 days see rain.

rain gear

UV index in Santa Cruz do Sul 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 Santa Cruz do Sul 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	13	13	10	8	5	3	4	5	8	6	11	12
Level	Extreme	Extreme	Extreme	Very high	Moderate	Moderate	Moderate	Moderate	Very high	High	Extreme	Extreme

	UV index (midday)	Level
Jan	13	Extreme
Feb	13	Extreme
Mar	10	Extreme
Apr	8	Very high
May	5	Moderate
Jun	3	Moderate
Jul	4	Moderate
Aug	5	Moderate
Sep	8	Very high
Oct	6	High
Nov	11	Extreme
Dec	12	Extreme

Location & terrain

Where is Santa Cruz do Sul?

Santa Cruz do Sul sits at 29.7°S, 52.4°W, 69 m above sea level, in Brazil. The nearest listed city is Vera Cruz, 7.0 km away.

Topography around Santa Cruz do Sul

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa Cruz do Sul.

Within 3 km, the terrain around Santa Cruz do Sul has only modest variations in elevation — a maximum elevation change of 221 m around an average of 100 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 428 m; within 80 km, large variations in elevation — a maximum elevation change of 775 m.

The land around Santa Cruz do Sul is covered by artificial surfaces (45%) and trees (43%) within 3 km, trees (50%), cropland (23%) and grassland (22%) within 16 km, and trees (52%) and cropland (28%) within 80 km.

3 km

221 m

artificial surfaces 45%

16 km

428 m

trees 50%

80 km

775 m

trees 52%

treesgrasslandcroplandartificial surfaceswater

← August Santa Cruz do Sul year-round climate October →Best places to visit in September

September weather nearby: Vera Cruz 7.0 km · Venâncio Aires 26 km · Rio Pardo 31 km · Candelária 35 km · Estrela 50 km · Lajeado 53 km · Taquari 55 km · Cachoeira do Sul 58 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 Santa Cruz do Sul (-29.7175°, -52.4258°, elevation 69 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	22	12
2	22	12
3	22	12
4	22	12
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	12
22	22	12
23	22	12
24	22	12
25	22	13
26	22	13
27	22	13
28	22	13
29	23	13
30	23	13

	Clearer (%)	Cloudier (%)
1	45	55
2	45	55
3	45	55
4	42	58
5	41	59
6	40	60
7	40	60
8	39	61
9	39	61
10	39	61
11	40	60
12	40	60
13	40	60
14	39	61
15	40	60
16	41	59
17	42	58
18	42	58
19	42	58
20	42	58
21	42	58
22	43	57
23	43	57
24	43	57
25	42	58
26	42	58
27	40	60
28	40	60
29	39	61
30	37	63

	Rain chance (%)
1	37
2	37
3	37
4	37
5	37
6	38
7	38
8	38
9	38
10	38
11	38
12	38
13	38
14	39
15	39
16	39
17	39
18	40
19	40
20	40
21	40
22	40
23	40
24	41
25	41
26	41
27	42
28	42
29	42
30	42

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

	Avg high (°C)	Avg low (°C)
1	22	12
2	22	12
3	22	12
4	22	12
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	12
22	22	12
23	22	12
24	22	12
25	22	13
26	22	13
27	22	13
28	22	13
29	23	13
30	23	13

	Clearer (%)	Cloudier (%)
1	45	55
2	45	55
3	45	55
4	42	58
5	41	59
6	40	60
7	40	60
8	39	61
9	39	61
10	39	61
11	40	60
12	40	60
13	40	60
14	39	61
15	40	60
16	41	59
17	42	58
18	42	58
19	42	58
20	42	58
21	42	58
22	43	57
23	43	57
24	43	57
25	42	58
26	42	58
27	40	60
28	40	60
29	39	61
30	37	63

	Rain chance (%)
1	37
2	37
3	37
4	37
5	37
6	38
7	38
8	38
9	38
10	38
11	38
12	38
13	38
14	39
15	39
16	39
17	39
18	40
19	40
20	40
21	40
22	40
23	40
24	41
25	41
26	41
27	42
28	42
29	42
30	42

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

	Avg high (°C)	Avg low (°C)
1	22	12
2	22	12
3	22	12
4	22	12
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	12
22	22	12
23	22	12
24	22	12
25	22	13
26	22	13
27	22	13
28	22	13
29	23	13
30	23	13

	Clearer (%)	Cloudier (%)
1	45	55
2	45	55
3	45	55
4	42	58
5	41	59
6	40	60
7	40	60
8	39	61
9	39	61
10	39	61
11	40	60
12	40	60
13	40	60
14	39	61
15	40	60
16	41	59
17	42	58
18	42	58
19	42	58
20	42	58
21	42	58
22	43	57
23	43	57
24	43	57
25	42	58
26	42	58
27	40	60
28	40	60
29	39	61
30	37	63

	Rain chance (%)
1	37
2	37
3	37
4	37
5	37
6	38
7	38
8	38
9	38
10	38
11	38
12	38
13	38
14	39
15	39
16	39
17	39
18	40
19	40
20	40
21	40
22	40
23	40
24	41
25	41
26	41
27	42
28	42
29	42
30	42

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