Esperantina weather in September

In September, Esperantina sees average daytime highs of 36°C and overnight lows near 25°C, with 2 mm of rain across 0.4 wet days and about 12 hours of daylight. It is the 3rd-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 36°C through the month. The sky is clear or mostly clear about 75% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Esperantina's 1st-clearest and 2nd-windiest month. For the whole year in context, see Esperantina's year-round climate.

Daytime high
36°
3rd warmest
Overnight low
25°
9th coldest
Rainfall
2 mm
0.4 wet days
Daylight
12 hours
5:44 AM – 5:43 PM
Cloud cover
33%
1st clearest
Wind
11 km/h
2nd windiest
Solar energy
6.75 kWh/m²
Travel score
2.3
out of 10

Esperantina 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 36°C through the month.

A typical September day in Esperantina reaches about 36°C in the afternoon and slips back to 25°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 35°C and 38°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13624
23624
33624
43624
53624
63624
73624
83624
93624
103624
113624
123624
133625
143625
153625
163625
173625
183725
193725
203725
213725
223725
233725
243725
253725
263725
273725
283725
293725
303725

How September really feels in Esperantina

Once humidity and wind are folded in, September averages 30 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
30
6 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Esperantina weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 24°20519.612.22.6
Feb32° / 24°27321.112.12.7
Mar32° / 23°35326.1122.6
Apr31° / 23°34925.411.92.7
May32° / 24°17115.711.83.5
Jun33° / 23°295.411.84.1
Jul34° / 23°112.511.83.9
Aug35° / 24°20.511.93.2
Sep36° / 25°20.4122.3
Oct37° / 25°80.912.11.9
Nov37° / 26°162.912.21.9
Dec36° / 25°587.412.22.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 75% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 8%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1928
2928
3928
4928
5928
6928
7928
8937
9937
10937
11928
12928
13928
14928
15928
16928
17928
18928
19928
20928
21928
22919
23919
24919
25919
26919
27928
28928
29928
30928

Chance of precipitation in September

Any precipitation

Esperantina gets around 2 mm of rain over 0.4 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 2% and peaks near 2% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
132
142
152
162
172
182
192
202
212
222
232
242
252
262
272
282
292
302

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the muggy band about 66% of days. Sticky, muggy-or-worse air turns up on roughly 68% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1329662
2330652
3331642
4331642
5432622
6432622
7433612
8433612
9433612
10333622
11333622
12332632
13332632
14331642
15330652
16330652
17229672
18228682
19228682
20227692
21227692
22226702
23226702
24226702
25225712
26225712
27225712
28226702
29226693
30226693

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 10 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
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
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 54 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over September. Sunrise moves from 5:51 AM to 5:37 AM, and sunset from 5:46 PM to 5:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:515:46
211.95:505:46
311.95:505:46
411.95:505:46
511.95:495:45
611.95:495:45
711.95:485:45
811.95:485:45
912.05:475:44
1012.05:475:44
1112.05:465:44
1212.05:465:44
1312.05:455:43
1412.05:455:43
1512.05:445:43
1612.05:445:43
1712.05:435:42
1812.05:435:42
1912.05:425:42
2012.05:425:42
2112.05:415:41
2212.05:415:41
2312.05:415:41
2412.05:405:41
2512.05:405:40
2612.05:395:40
2712.05:395:40
2812.05:385:40
2912.05:385:39
3012.05:375:39

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.75 kWh/m².

For context, solar energy here swings from a low near 4.96 kWh/m² to a high of 6.89 kWh/m² in October across the year — September's 6.75 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.6Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.7Intense
146.7Intense
156.7Intense
166.8Intense
176.8Intense
186.8Intense
196.8Intense
206.8Intense
216.8Intense
226.8Intense
236.8Intense
246.8Intense
256.9Intense
266.9Intense
276.9Intense
286.9Intense
296.9Intense
306.9Intense
Planning a trip in September

Hazard calendar for Esperantina

In seasonPeak

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

Esperantina's monsoon runs January–May, 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 Esperantina?

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

2.3
Sightseeing
9th-best month of the year
5.9
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Esperantina.

What to pack for Esperantina in September

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

In September, Esperantina sees daytime highs around 36°C and nights near 25°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Esperantina in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Esperantina peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 17 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 15UV 15Jul 17UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct11Extreme
Nov11Extreme
Dec11Extreme

Air quality in Esperantina 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 Esperantina is worst in November — around 23 µg/m³ PM2.5 (moderate), about 4.1× the cleanest month (August, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1822 µg/m³Aug 126 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb14Moderate
Mar13Moderate
Apr12Good
May9Good
Jun7Good
Jul6Good
Aug6Good
Sep7Good
Oct17Moderate
Nov23Moderate
Dec19Moderate
Location & terrain

Where is Esperantina?

Esperantina sits at 3.9°S, 42.2°W, 63 m above sea level, in Brazil. The nearest listed city is Batalha, 22 km away.

Topography around Esperantina

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

Within 3 km, the terrain around Esperantina has only modest variations in elevation — a maximum elevation change of 60 m around an average of 68 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 139 m; within 80 km, significant variations in elevation — a maximum elevation change of 384 m.

The land around Esperantina is covered by trees (44%) and grassland (23%) within 3 km, trees (63%) within 16 km, and trees (61%) and grassland (21%) within 80 km.

3 km
60 m
16 km
139 m
80 km
384 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Batalha 22 km · Barras 39 km · Luzilândia 52 km · Santa Quitéria do Maranhão 58 km · Piracuruca 58 km · Brejo 62 km · São Bernardo 63 km · Piripiri 65 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 Esperantina (-3.9017°, -42.2336°, elevation 63 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).