Alegrete weather in September

In September, Alegrete sees average daytime highs of 23°C and overnight lows near 13°C, with 155 mm of rain across 9.6 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 38% 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 Alegrete's 9th-clearest and 1st-windiest month. For the whole year in context, see Alegrete's year-round climate.

Daytime high
23°
8th warmest
Overnight low
13°
5th coldest
Rainfall
155 mm
9.6 wet days
Daylight
11 h 48 min
7:43 AM – 7:32 PM
Cloud cover
54%
9th clearest
Wind
15 km/h
1st windiest
Solar energy
4.48 kWh/m²
Travel score
6.9
out of 10

Alegrete is human settlement in Brazil.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical September day in Alegrete reaches about 23°C in the afternoon and slips back to 13°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 2°C warmer than August and about 3°C cooler than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12212
22212
32212
42212
52212
62212
72212
82212
92212
102212
112212
122212
132212
142212
152312
162312
172312
182312
192313
202313
212313
222313
232313
242313
252313
262313
272313
282313
292413
302413

How September really feels in Alegrete

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.

Alegrete weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 21°14311.613.74.3
Feb30° / 20°13210.713.14.7
Mar29° / 19°1249.712.25.7
Apr26° / 16°1629.511.36.9
May22° / 12°1228.410.56.9
Jun19° / 11°1349.510.16.2
Jul19° / 10°1248.910.36.4
Aug21° / 11°1098.410.97.0
Sep23° / 13°1559.611.86.9
Oct25° / 15°21111.212.76.7
Nov28° / 17°1429.113.56.3
Dec31° / 19°1369.513.94.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15446
25347
35347
45248
55248
65149
75149
85149
95149
105149
115149
125149
135149
145149
155149
165149
175347
185347
195347
205347
215347
225347
235248
245248
255149
265050
275050
284852
294753
304753

Chance of precipitation in September

Any precipitation

Alegrete gets around 155 mm of rain over 9.6 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 32% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
132
233
333
434
534
634
734
834
934
1033
1133
1233
1333
1432
1532
1632
1731
1831
1931
2030
2130
2230
2330
2430
2531
2631
2731
2832
2932
3033

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 52% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
155212040
254212140
354212140
454212140
554212140
654212140
754212140
854212140
954212140
1054222040
1154222040
1254222040
1355221940
1453231950
1553231950
1654231850
1754231850
1854231850
1954241750
2053241760
2153241760
2252251760
2351251770
2450261770
2549261770
2648261781
2747261881
2847261891
2946261891
30452618101

Wind in September

Winds average 15 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 15 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
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light 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 8:02 AM to 7:25 AM, and sunset from 7:24 PM to 7:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.48:027:24
211.48:017:25
311.47:597:25
411.57:587:26
511.57:577:26
611.57:567:27
711.57:547:27
811.67:537:28
911.67:527:28
1011.67:517:29
1111.77:497:29
1211.77:487:30
1311.77:477:31
1411.87:457:31
1511.87:447:32
1611.87:437:32
1711.97:427:33
1811.97:407:33
1911.97:397:34
2011.97:387:34
2112.07:367:35
2212.07:357:36
2312.07:347:36
2412.17:327:37
2512.17:317:37
2612.17:307:38
2712.27:297:38
2812.27:277:39
2912.27:267:39
3012.37:257:40

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.48 kWh/m².

For context, solar energy here swings from a low near 2.47 kWh/m² to a high of 6.97 kWh/m² in December across the year — September's 4.48 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.0Bright
24.0Bright
34.1Bright
44.1Bright
54.1Bright
64.1Bright
74.2Bright
84.2Bright
94.2Bright
104.3Bright
114.3Bright
124.3Bright
134.4Bright
144.4Bright
154.5Bright
164.5Bright
174.5Bright
184.6Bright
194.6Bright
204.7Bright
214.7Bright
224.7Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
Planning a trip in September

Is September a good time to visit Alegrete?

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

6.9
Sightseeing
2nd-best month of the year
5.2
Beach & pool
8th-best month of the year

September is a reasonable time to visit Alegrete for sightseeing.

What to pack for Alegrete in September

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

In September, Alegrete sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes and rain gear. About 10 days see rain.

light clothesrain gear

UV index in Alegrete 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 Alegrete peaks around January 20 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 highModerateHighHighExtremeJan 20UV 13Jun 18UV 3
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar10Extreme
Apr8Very high
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct4Moderate
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Alegrete?

Alegrete sits at 29.8°S, 55.8°W, 102 m above sea level, in Brazil. The nearest listed city is São Francisco de Assis, 69 km away.

Topography around Alegrete

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

Within 3 km, the terrain around Alegrete has only modest variations in elevation — a maximum elevation change of 48 m around an average of 86 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 130 m; within 80 km, significant variations in elevation — a maximum elevation change of 335 m.

The land around Alegrete is covered by trees (27%), grassland (26%) and artificial surfaces (26%) within 3 km, grassland (69%) within 16 km, and grassland (63%) and cropland (24%) within 80 km.

3 km
48 m
16 km
130 m
80 km
335 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: São Francisco de Assis 69 km · Quaraí 92 km · Artigas 95 km · Rosário do Sul 100 km · Itaqui 104 km · Santiago 111 km · Uruguaiana 125 km · Paso de los Libres 125 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 Alegrete (-29.7831°, -55.7919°, elevation 102 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).