São Gabriel weather in September

In September, São Gabriel sees average daytime highs of 22°C and overnight lows near 12°C, with 161 mm of rain across 10.3 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 35% 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 São Gabriel's 9th-clearest and 1st-windiest month. For the whole year in context, see São Gabriel's year-round climate.

Daytime high
22°
8th warmest
Overnight low
12°
4th coldest
Rainfall
161 mm
10.3 wet days
Daylight
11 h 48 min
7:37 AM – 7:26 PM
Cloud cover
58%
9th clearest
Wind
14 km/h
1st windiest
Solar energy
4.29 kWh/m²
Travel score
6.5
out of 10

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 São Gabriel 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 28°C. Set against its neighbours, September runs about 1°C warmer than August and about 3°C cooler than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12211
22212
32212
42212
52212
62212
72212
82212
92212
102212
112212
122212
132212
142212
152212
162212
172212
182212
192212
202212
212212
222212
232212
242212
252212
262213
272213
282313
292313
302313

How September really feels in São Gabriel

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

São Gabriel 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.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 20°13611.913.74.5
Feb30° / 20°1251113.14.9
Mar29° / 18°1159.512.25.9
Apr25° / 15°1439.211.37.0
May21° / 12°1238.710.56.7
Jun19° / 10°1379.810.16.1
Jul18° / 1349.610.26.1
Aug21° / 10°1168.810.96.7
Sep22° / 12°16110.311.86.5
Oct24° / 14°18911.412.76.6
Nov27° / 16°1308.813.56.5
Dec30° / 19°1371013.95.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15050
25050
35050
44852
54852
64753
74753
84555
94654
104654
114654
124654
134555
144555
154753
164753
174753
184753
194753
204753
214753
224753
234753
244753
254555
264555
274456
284456
294357
304258

Chance of precipitation in September

Any precipitation

São Gabriel gets around 161 mm of rain over 10.3 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 35% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
133
233
334
434
534
635
735
835
935
1035
1135
1234
1334
1434
1534
1634
1734
1834
1934
2034
2134
2234
2334
2434
2535
2635
2736
2836
2936
3037

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.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15521204
25521204
35521204
45521204
55422204
65422204
75522194
85423194
95423194
105523184
115424184
125324185
135325175
145325175
155325175
165325175
175325175
185425165
195425165
205425165
215425165
225425165
235325175
245226175
255226175
265026186
275026186
284926186
294826197
304726197

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 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze

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 7:56 AM to 7:19 AM, and sunset from 7:18 PM to 7:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.47:567:18
211.47:557:18
311.47:547:19
411.47:537:19
511.57:517:20
611.57:507:21
711.57:497:21
811.67:477:22
911.67:467:22
1011.67:457:23
1111.77:447:23
1211.77:427:24
1311.77:417:24
1411.87:407:25
1511.87:387:26
1611.87:377:26
1711.97:367:27
1811.97:347:27
1911.97:337:28
2011.97:327:28
2112.07:307:29
2212.07:297:30
2312.07:287:30
2412.17:277:31
2512.17:257:31
2612.17:247:32
2712.27:237:33
2812.27:217:33
2912.27:207:34
3012.37:197:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.29 kWh/m².

For context, solar energy here swings from a low near 2.43 kWh/m² to a high of 6.91 kWh/m² in December across the year — September's 4.29 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
54.0Moderate
64.0Moderate
74.0Bright
84.0Bright
94.0Bright
104.1Bright
114.1Bright
124.1Bright
134.2Bright
144.2Bright
154.3Bright
164.3Bright
174.3Bright
184.4Bright
194.4Bright
204.5Bright
214.5Bright
224.5Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
Planning a trip in September

Is September a good time to visit São Gabriel?

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

6.5
Sightseeing
5th-best month of the year
4.5
Beach & pool
8th-best month of the year

September is a reasonable time to visit São Gabriel for sightseeing.

What to pack for São Gabriel in September

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

In September, São Gabriel sees daytime highs around 22°C and nights near 12°C. Worth packing: rain gear. About 10 days see rain.

rain gear

UV index in São Gabriel 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 São Gabriel peaks around January 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 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 18UV 13Jun 18UV 3
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar10Extreme
Apr7Very high
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep7Very high
Oct7High
Nov11Extreme
Dec12Extreme
Location & terrain

Where is São Gabriel?

São Gabriel sits at 30.3°S, 54.3°W, 119 m above sea level, in Brazil. The nearest listed city is Rosário do Sul, 58 km away.

Topography around São Gabriel

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

Within 3 km, the terrain around São Gabriel has only modest variations in elevation — a maximum elevation change of 53 m around an average of 105 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 122 m; within 80 km, significant variations in elevation — a maximum elevation change of 421 m.

The land around São Gabriel is covered by trees (32%), artificial surfaces (32%) and grassland (24%) within 3 km, cropland (50%) and grassland (32%) within 16 km, and grassland (47%) and cropland (34%) within 80 km.

3 km
53 m
16 km
122 m
80 km
421 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Rosário do Sul 58 km · São Sepé 75 km · Dom Pedrito 79 km · São Pedro do Sul 81 km · Caçapava do Sul 82 km · Santa Maria 88 km · Bagé 112 km · São Francisco de Assis 117 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 São Gabriel (-30.3364°, -54.32°, elevation 119 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).