Colina weather in September

In September, Colina sees average daytime highs of 31°C and overnight lows near 19°C, with 59 mm of rain across 6.9 wet days and about 11.9 hours of daylight. It is the 2nd-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 55% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Colina's 4th-clearest and 1st-windiest month. For the whole year in context, see Colina's year-round climate.

Daytime high
31°
2nd warmest
Overnight low
19°
5th coldest
Rainfall
59 mm
6.9 wet days
Daylight
11 h 54 min
7:12 AM – 7:05 PM
Cloud cover
41%
4th clearest
Wind
10 km/h
1st windiest
Solar energy
5.76 kWh/m²
Travel score
5.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical September day in Colina reaches about 31°C in the afternoon and slips back to 19°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 35°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

15°20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13118
23118
33118
43118
53118
63118
73119
83119
93119
103119
113119
123119
133119
143119
153119
163119
173119
183119
193119
203119
213119
223119
233119
243119
253119
263120
273120
283120
293120
303120

How September really feels in Colina

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.

Colina weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°26723.113.13.5
Feb30° / 21°18719.812.73.6
Mar30° / 21°16819.112.14.0
Apr29° / 19°658.911.55.5
May27° / 17°385.5117.3
Jun27° / 16°242.910.88.0
Jul27° / 15°15210.98.1
Aug30° / 17°172.511.36.6
Sep31° / 19°596.911.95.0
Oct31° / 21°11113.212.54.0
Nov30° / 21°16518.3133.8
Dec30° / 21°23022.613.23.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% 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 31%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18020
27921
37921
47921
57822
67723
77723
87624
97525
107426
117327
127228
137129
147030
156931
166931
176832
186733
196634
206535
216535
226337
236238
246040
255941
265941
275743
285743
295644
305545

Chance of precipitation in September

Any precipitation

Colina gets around 59 mm of rain over 6.9 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 23% and peaks near 37% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
113
213
314
414
515
615
715
816
916
1017
1117
1218
1319
1419
1520
1621
1722
1824
1925
2026
2128
2229
2330
2431
2533
2634
2735
2836
2937
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 38% of days. Sticky, muggy-or-worse air turns up on roughly 10% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
160251410
258251520
357251620
456251720
554251830
653251930
752252030
850262140
948262250
1047262250
1145262360
1243272460
1342272470
1440272580
1538282580
1637282690
17352926100
18342927100
19322927110
20312928120
21292928130
22282929140
23272929160
24252829170
25242730190
26232730200
27222630220
28212530230
29212530240
30202430261

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.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 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 36 minutes over September. Sunrise moves from 7:26 AM to 6:58 AM, and sunset from 7:01 PM to 7:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.67:267:01
211.67:257:02
311.67:257:02
411.67:247:02
511.77:237:02
611.77:227:03
711.77:217:03
811.77:207:03
911.77:197:03
1011.87:187:04
1111.87:177:04
1211.87:167:04
1311.87:157:04
1411.87:147:05
1511.97:137:05
1611.97:127:05
1711.97:117:05
1811.97:107:05
1911.97:097:06
2012.07:087:06
2112.07:077:06
2212.07:067:06
2312.07:057:07
2412.07:047:07
2512.17:037:07
2612.17:027:07
2712.17:017:08
2812.17:007:08
2912.16:597:08
3012.26:587:08

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.76 kWh/m².

For context, solar energy here swings from a low near 3.97 kWh/m² to a high of 6.09 kWh/m² in October across the year — September's 5.76 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in September

Hazard calendar for Colina

In seasonPeak

None of Colina's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Colina's monsoon runs November–March, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Colina?

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

5.0
Sightseeing
6th-best month of the year
7.4
Beach & pool
5th-best month of the year

September is a reasonable time to visit Colina for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Colina in September

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

In September, Colina sees daytime highs around 31°C and nights near 19°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Colina in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Colina peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 7 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 22UV 15Jun 20UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun7High
Jul7High
Aug9Very high
Sep10Very high
Oct10Extreme
Nov13Extreme
Dec14Extreme

Air quality in Colina in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Colina is worst in September — around 35 µg/m³ PM2.5 (moderate), about 4.0× the cleanest month (November, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1134 µg/m³Nov 229 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar11Good
Apr12Good
May13Moderate
Jun13Moderate
Jul14Moderate
Aug31Moderate
Sep35Moderate
Oct19Moderate
Nov9Good
Dec10Good
Location & terrain

Where is Colina?

Colina sits at 20.7°S, 48.5°W, 604 m above sea level, in Brazil. The nearest listed city is Barretos, 18 km away.

Topography around Colina

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

Within 3 km, the terrain around Colina has only modest variations in elevation — a maximum elevation change of 87 m around an average of 588 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 171 m; within 80 km, significant variations in elevation — a maximum elevation change of 412 m.

The land around Colina is covered by cropland (48%) and trees (24%) within 3 km, cropland (73%) within 16 km, and cropland (72%) within 80 km.

3 km
87 m
16 km
171 m
80 km
412 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Barretos 18 km · Monte Azul Paulista 24 km · Bebedouro 27 km · Viradouro 31 km · Olímpia 39 km · Pitangueiras 47 km · Guaíra 50 km · Morro Agudo 50 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 Colina (-20.7133°, -48.5408°, elevation 604 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).