Forquilha weather in September

In September, Forquilha sees average daytime highs of 35°C and overnight lows near 24°C, with 1 mm of rain across 0.2 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 35°C through the month. The sky is clear or mostly clear about 81% 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 Forquilha's 1st-clearest and 2nd-windiest month. For the whole year in context, see Forquilha's year-round climate.

Daytime high
35°
3rd warmest
Overnight low
24°
8th coldest
Rainfall
1 mm
0.2 wet days
Daylight
12 hours
5:36 AM – 5:35 PM
Cloud cover
25%
1st clearest
Wind
15 km/h
2nd windiest
Solar energy
6.86 kWh/m²
Travel score
3.4
out of 10

Forquilha 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 35°C through the month.

A typical September day in Forquilha reaches about 35°C in the afternoon and slips back to 24°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 34°C and 36°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)
13423
23423
33523
43523
53523
63523
73524
83524
93524
103524
113524
123524
133524
143524
153524
163524
173524
183524
193524
203524
213524
223524
233524
243524
253524
263524
273524
283524
293524
303524

How September really feels in Forquilha

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
heat index over the day's high
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.

Forquilha 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°9515.512.23.0
Feb32° / 24°12218.612.13.1
Mar31° / 23°17723.7123.0
Apr31° / 23°18722.211.93.2
May31° / 23°8213.111.84.0
Jun32° / 23°225.211.84.5
Jul33° / 23°142.511.84.5
Aug34° / 23°40.511.94.0
Sep35° / 24°10.2123.4
Oct35° / 24°30.512.13.0
Nov35° / 24°50.712.23.0
Dec34° / 24°224.712.23.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 81% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 6%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1937
2937
3937
4937
5937
6937
7937
8946
9946
10946
11946
12946
13946
14955
15955
16955
17964
18964
19964
20964
21955
22955
23955
24955
25955
26955
27955
28955
29937
30937

Chance of precipitation in September

Any precipitation

Forquilha gets around 1 mm of rain over 0.2 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 1% and peaks near 1% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
181
191
201
211
221
231
240
250
260
270
280
290
301

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 68% of days. Sticky, muggy-or-worse air turns up on roughly 68% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
135650
236640
336640
437630
537630
638620
738620
838620
938620
1037630
1137630
1236640
1335650
1434660
1533670
1632680
1731690
1830691
1929701
2028711
2127721
2227721
2326731
2425741
2525741
2624751
2724751
2823761
2923761
3023761

Wind in September

Winds average 15 km/h in September.

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 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 5:43 AM to 5:29 AM, and sunset from 5:39 PM to 5:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:435:39
211.95:435:38
311.95:425:38
411.95:425:38
511.95:415:38
611.95:415:37
711.95:405:37
812.05:405:37
912.05:395:37
1012.05:395:36
1112.05:385:36
1212.05:385:36
1312.05:375:36
1412.05:375:35
1512.05:365:35
1612.05:365:35
1712.05:365:34
1812.05:355:34
1912.05:355:34
2012.05:345:34
2112.05:345:33
2212.05:335:33
2312.05:335:33
2412.05:325:33
2512.05:325:32
2612.05:315:32
2712.05:315:32
2812.05:305:32
2912.05:305:31
3012.05:295:31

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.86 kWh/m².

For context, solar energy here swings from a low near 4.85 kWh/m² to a high of 6.89 kWh/m² in October across the year — September's 6.86 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.6Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.7Intense
76.7Intense
86.8Intense
96.8Intense
106.8Intense
116.8Intense
126.8Intense
136.8Intense
146.8Intense
156.8Intense
166.9Intense
176.9Intense
186.9Intense
196.9Intense
206.9Intense
216.9Intense
226.9Intense
236.9Intense
246.9Intense
257.0Intense
267.0Intense
277.0Intense
287.0Intense
297.0Intense
307.0Intense
Planning a trip in September

Hazard calendar for Forquilha

In seasonPeak

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

Forquilha's monsoon runs January–April, 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 Forquilha?

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

3.4
Sightseeing
5th-best month of the year
7.3
Beach & pool
3rd-best month of the year

September is a weaker month for outdoor sightseeing in Forquilha. The water and warmth also suit a beach or pool day.

What to pack for Forquilha in September

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

In September, Forquilha sees daytime highs around 35°C and nights near 24°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Forquilha 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 Forquilha peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 16UV 15Jun 22UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme

Air quality in Forquilha 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 Forquilha is worst in December — around 17 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (July, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateDec 1017 µg/m³Jul 216 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar12Moderate
Apr12Good
May10Good
Jun7Good
Jul6Good
Aug6Good
Sep7Good
Oct10Good
Nov17Moderate
Dec17Moderate
Location & terrain

Where is Forquilha?

Forquilha sits at 3.8°S, 40.3°W, 92 m above sea level, in Brazil. The nearest listed city is Sobral, 16 km away.

Topography around Forquilha

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

Within 3 km, the terrain around Forquilha has only modest variations in elevation — a maximum elevation change of 71 m around an average of 96 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 532 m; within 80 km, large variations in elevation — a maximum elevation change of 1,054 m.

The land around Forquilha is covered by shrubs (43%) and grassland (33%) within 3 km, shrubs (77%) within 16 km, and shrubs (62%) and grassland (20%) within 80 km.

3 km
71 m
16 km
532 m
80 km
1,054 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Sobral 16 km · Cariré 29 km · Massapê 32 km · Meruoca 36 km · Santana do Acaraú 38 km · Varjota 50 km · Coreaú 52 km · Reriutaba 52 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 Forquilha (-3.7983°, -40.2606°, elevation 92 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).