Martinópolis weather in September

In September, Martinópolis sees average daytime highs of 30°C and overnight lows near 18°C, with 93 mm of rain across 8.2 wet days and about 11.9 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 52% 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 Martinópolis's 4th-clearest and 1st-windiest month. For the whole year in context, see Martinópolis's year-round climate.

Daytime high
30°
7th warmest
Overnight low
18°
5th coldest
Rainfall
93 mm
8.2 wet days
Daylight
11 h 54 min
7:23 AM – 7:15 PM
Cloud cover
44%
4th clearest
Wind
11 km/h
1st windiest
Solar energy
5.47 kWh/m²
Travel score
5.7
out of 10

Martinópolis is 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 30°C through the month.

A typical September day in Martinópolis reaches about 30°C in the afternoon and slips back to 18°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 35°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
12917
22918
32918
43018
53018
63018
73018
83018
93018
103018
113018
123018
133018
143018
153018
163018
173018
183018
193018
203018
212918
222918
232918
242919
252919
262919
272919
283019
293019
303019

How September really feels in Martinópolis

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.

Martinópolis weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°2422213.23.4
Feb30° / 22°19419.412.83.5
Mar30° / 21°1491712.24.2
Apr29° / 19°748.711.55.8
May26° / 17°757.2117.3
Jun25° / 16°545.610.77.8
Jul26° / 15°354.110.88.0
Aug28° / 16°38411.27.3
Sep30° / 18°938.211.95.7
Oct30° / 20°14213.412.54.5
Nov30° / 20°14814.513.14.2
Dec31° / 21°19119.813.33.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% 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 36%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17723
27624
37525
47525
57426
67228
77129
87129
96931
106832
116832
126733
136634
146634
156436
166436
176337
186337
196139
206139
216040
225941
235842
245743
255644
265545
275446
285347
295347
305347

Chance of precipitation in September

Any precipitation

Martinópolis gets around 93 mm of rain over 8.2 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 27% 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 (%)
117
218
319
420
520
621
722
822
923
1023
1124
1225
1325
1425
1526
1626
1727
1828
1928
2029
2130
2231
2332
2433
2534
2635
2736
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 31% of days. Sticky, muggy-or-worse air turns up on roughly 15% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
147321650
247311750
346311760
445301860
545301970
644292070
743292080
842292180
940292290
1039292390
11372924100
12362925100
13343025100
14333026110
15313126120
16293227120
17283227130
18263327140
19253327150
20233327160
21223327170
22213327180
23203327201
24193227211
25183127231
26173027241
27172927261
28162826272
29162726292
30162627302

Wind in September

Winds average 11 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

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 7:38 AM to 7:09 AM, and sunset from 7:11 PM to 7:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.67:387:11
211.67:377:11
311.67:367:12
411.67:357:12
511.67:347:12
611.77:337:12
711.77:327:13
811.77:317:13
911.77:307:13
1011.77:297:14
1111.87:287:14
1211.87:277:14
1311.87:267:14
1411.87:257:15
1511.97:247:15
1611.97:237:15
1711.97:227:16
1811.97:217:16
1911.97:207:16
2012.07:197:16
2112.07:187:17
2212.07:177:17
2312.07:167:17
2412.07:157:18
2512.17:147:18
2612.17:137:18
2712.17:127:18
2812.17:117:19
2912.27:107:19
3012.27:097:19

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.47 kWh/m².

For context, solar energy here swings from a low near 3.6 kWh/m² to a high of 6.2 kWh/m² in November across the year — September's 5.47 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.7Bright
295.7Bright
305.7Bright
Planning a trip in September

Hazard calendar for Martinópolis

In seasonPeak

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

Martinópolis's rainy season runs October–March, when most of the year's rain falls.

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

Is September a good time to visit Martinópolis?

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

5.7
Sightseeing
6th-best month of the year
7.5
Beach & pool
3rd-best month of the year

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

What to pack for Martinópolis in September

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

In September, Martinópolis sees daytime highs around 30°C and nights near 18°C. Pack light clothes. Worth having: rain gear and sun protection. About 8 days see rain.

light clothesrain gearsun protection

UV index in Martinópolis 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 Martinópolis peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 20UV 15Jul 12UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7Very high
Jun6High
Jul6High
Aug7Very high
Sep8Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Martinópolis 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 Martinópolis is worst in September — around 19 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1618 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar7Good
Apr8Good
May9Good
Jun10Good
Jul9Good
Aug13Moderate
Sep19Moderate
Oct13Moderate
Nov7Good
Dec7Good
Location & terrain

Where is Martinópolis?

Martinópolis sits at 22.1°S, 51.2°W, 501 m above sea level, in Brazil. The nearest listed city is Regente Feijó, 16 km away.

Topography around Martinópolis

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

Within 3 km, the terrain around Martinópolis has only modest variations in elevation — a maximum elevation change of 97 m around an average of 470 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 225 m; within 80 km, significant variations in elevation — a maximum elevation change of 343 m.

The land around Martinópolis is covered by grassland (40%) and cropland (31%) within 3 km, cropland (46%) and grassland (36%) within 16 km, and cropland (49%) and grassland (37%) within 80 km.

3 km
97 m
16 km
225 m
80 km
343 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Regente Feijó 16 km · Presidente Prudente 23 km · Rancharia 30 km · Álvares Machado 32 km · Pirapozinho 37 km · Osvaldo Cruz 49 km · Lucélia 50 km · Bastos 51 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 Martinópolis (-22.1458°, -51.1708°, elevation 501 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).