Itaqui weather in September

In September, Itaqui sees average daytime highs of 24°C and overnight lows near 13°C, with 149 mm of rain across 9.9 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 24°C through the month. The sky is clear or mostly clear about 43% 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 12 min by month's end. Set against the rest of the year, September is Itaqui's 9th-clearest and 1st-windiest month. For the whole year in context, see Itaqui's year-round climate.

Daytime high
24°
8th warmest
Overnight low
13°
5th coldest
Rainfall
149 mm
9.9 wet days
Daylight
11 h 48 min
7:46 AM – 7:35 PM
Cloud cover
51%
9th clearest
Wind
14 km/h
1st windiest
Solar energy
4.58 kWh/m²
Travel score
7.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical September day in Itaqui reaches about 24°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 30°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)
12313
22313
32313
42313
52313
62313
72313
82313
92313
102313
112313
122313
132313
142313
152313
162313
172413
182413
192413
202414
212414
222414
232414
242414
252414
262414
272414
282414
292414
302514

How September really feels in Itaqui

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.

Itaqui 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
Jan32° / 21°14611.513.74.1
Feb31° / 21°12910.3134.5
Mar30° / 20°1301012.25.4
Apr26° / 17°1729.511.36.8
May22° / 13°1218.210.67.0
Jun20° / 11°1219.110.26.4
Jul20° / 10°1158.310.36.6
Aug22° / 12°1038.5117.1
Sep24° / 13°1499.911.87.0
Oct26° / 16°21311.212.76.5
Nov29° / 18°1468.813.56.0
Dec31° / 20°1491013.84.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% 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 45%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15842
25842
35743
45743
55644
65644
75644
85644
95644
105644
115644
125644
135644
145644
155644
165644
175545
185644
195644
205644
215644
225644
235644
245545
255545
265446
275347
285248
295149
305149

Chance of precipitation in September

Any precipitation

Itaqui gets around 149 mm of rain over 9.9 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 33% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
132
233
333
433
534
634
734
834
934
1034
1134
1234
1334
1434
1534
1634
1733
1833
1933
2033
2132
2232
2333
2433
2533
2633
2734
2834
2934
3034

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 50% of days. Sticky, muggy-or-worse air turns up on roughly 8% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
151212260
251202360
350202370
450202370
551202270
651202270
752202260
852202260
953202160
1053202160
1152212160
1253212060
1353212060
1453212060
1552212070
1652221970
1752221970
1852221970
1951231970
2051231970
2150241971
2249241981
2348241981
2447241981
2546252091
2645252091
27442520101
28432520101
29422521111
30412521111

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.

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
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 24 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 48 minutes over September. Sunrise moves from 8:04 AM to 7:28 AM, and sunset from 7:28 PM to 7:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.48:047:28
211.48:037:28
311.48:027:29
411.58:017:29
511.57:597:30
611.57:587:30
711.67:577:31
811.67:567:31
911.67:557:32
1011.67:537:32
1111.77:527:33
1211.77:517:33
1311.77:507:34
1411.87:487:34
1511.87:477:35
1611.87:467:35
1711.97:447:36
1811.97:437:36
1911.97:427:37
2011.97:417:37
2112.07:397:38
2212.07:387:39
2312.07:377:39
2412.17:367:40
2512.17:347:40
2612.17:337:41
2712.27:327:41
2812.27:317:42
2912.27:297:42
3012.27:287:43

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.58 kWh/m².

For context, solar energy here swings from a low near 2.5 kWh/m² to a high of 6.93 kWh/m² in December across the year — September's 4.58 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.1Bright
24.2Bright
34.2Bright
44.2Bright
54.2Bright
64.3Bright
74.3Bright
84.3Bright
94.3Bright
104.4Bright
114.4Bright
124.4Bright
134.5Bright
144.5Bright
154.6Bright
164.6Bright
174.6Bright
184.7Bright
194.7Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
295.0Bright
305.0Bright
Planning a trip in September

Is September a good time to visit Itaqui?

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

7.0
Sightseeing
2nd-best month of the year
5.7
Beach & pool
8th-best month of the year

September is one of the better times to visit Itaqui for general sightseeing.

What to pack for Itaqui in September

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

In September, Itaqui sees daytime highs around 24°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Itaqui 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 Itaqui peaks around January 21 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighHighExtremeJan 21UV 13Jun 19UV 3
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May5Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct4Moderate
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Itaqui?

Itaqui sits at 29.1°S, 56.6°W, 61 m above sea level, in Brazil. The nearest listed city is São Borja, 74 km away.

Topography around Itaqui

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

Within 3 km, the terrain around Itaqui has only modest variations in elevation — a maximum elevation change of 48 m around an average of 55 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 68 m; within 80 km, only modest variations in elevation — a maximum elevation change of 155 m.

The land around Itaqui is covered by wetland (23%), artificial surfaces (22%) and trees (20%) within 3 km, grassland (31%), wetland (26%) and cropland (23%) within 16 km, and grassland (48%), cropland (21%) and wetland (20%) within 80 km.

3 km
48 m
16 km
68 m
80 km
155 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: São Borja 74 km · Santo Tomé 81 km · Paso de los Libres 83 km · Uruguaiana 87 km · Alegrete 104 km · Gobernador Virasora 130 km · Quaraí 141 km · Artigas 142 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 Itaqui (-29.1253°, -56.5531°, elevation 61 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).