Horizonte weather in September

In September, Horizonte sees average daytime highs of 32°C and overnight lows near 24°C, with 4 mm of rain across 1.1 wet days and about 12 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 86% 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 Horizonte's 1st-clearest and 1st-windiest month. For the whole year in context, see Horizonte's year-round climate.

Daytime high
32°
1st warmest
Overnight low
24°
4th coldest
Rainfall
4 mm
1.1 wet days
Daylight
12 hours
5:29 AM – 5:28 PM
Cloud cover
23%
1st clearest
Wind
18 km/h
1st windiest
Solar energy
6.69 kWh/m²
Travel score
5.5
out of 10

Horizonte is locality in the municipality of Horizonte, in Ceará, 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 32°C through the month.

A typical September day in Horizonte reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 33°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13224
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193224
203224
213224
223224
233224
243224
253224
263224
273224
283224
293224
303224

How September really feels in Horizonte

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.

Horizonte weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 25°991812.23.8
Feb30° / 24°13420.212.13.5
Mar30° / 24°19525.5123.3
Apr30° / 24°23525.411.93.3
May30° / 24°12719.811.84.0
Jun30° / 24°6313.211.84.9
Jul30° / 23°33711.85.4
Aug31° / 23°72.111.95.5
Sep32° / 24°41.1125.5
Oct32° / 25°61.512.15.3
Nov32° / 25°8312.25.1
Dec31° / 25°309.412.24.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 86% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 4%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1964
2964
3964
4955
5955
6955
7955
8955
9955
10955
11964
12964
13964
14964
15964
16964
17964
18964
19973
20973
21973
22973
23973
24973
25973
26964
27964
28964
29955
30955

Chance of precipitation in September

Any precipitation

Horizonte gets around 4 mm of rain over 1.1 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 4% and peaks near 4% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
14
24
34
44
54
64
74
84
94
104
114
124
134
144
154
164
174
184
194
204
214
224
234
244
254
264
274
284
294
304

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 63% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
117029
217029
317029
417128
517128
617128
717128
817128
917128
1017029
1117029
1216930
1316831
1416732
1516534
1606535
1706436
1806238
1906139
2005941
2105842
2205743
2305644
2405545
2505446
2605347
2705248
2805149
2905149
3005050

Wind in September

Winds average 18 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 18 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light 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 5:36 AM to 5:22 AM, and sunset from 5:31 PM to 5:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:365:31
211.95:365:31
311.95:355:31
411.95:355:31
511.95:345:30
611.95:345:30
711.95:335:30
811.95:335:30
912.05:325:29
1012.05:325:29
1112.05:315:29
1212.05:315:29
1312.05:305:28
1412.05:305:28
1512.05:295:28
1612.05:295:28
1712.05:285:27
1812.05:285:27
1912.05:275:27
2012.05:275:27
2112.05:275:26
2212.05:265:26
2312.05:265:26
2412.05:255:26
2512.05:255:25
2612.05:245:25
2712.05:245:25
2812.05:235:25
2912.05:235:24
3012.05:225:24

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.69 kWh/m².

For context, solar energy here swings from a low near 4.78 kWh/m² to a high of 6.7 kWh/m² in October across the year — September's 6.69 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.6Intense
106.6Intense
116.7Intense
126.7Intense
136.7Intense
146.7Intense
156.7Intense
166.7Intense
176.7Intense
186.7Intense
196.7Intense
206.7Intense
216.7Intense
226.7Intense
236.8Intense
246.8Intense
256.8Intense
266.8Intense
276.8Intense
286.8Intense
296.8Intense
306.8Intense
Planning a trip in September

Hazard calendar for Horizonte

In seasonPeak

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

Horizonte's monsoon runs February–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 Horizonte?

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

5.5
Sightseeing
1st-best month of the year
8.5
Beach & pool
1st-best month of the year

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

What to pack for Horizonte in September

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

In September, Horizonte sees daytime highs around 32°C and nights near 24°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Horizonte in September

The nearest coast averages about 27°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 28 km away) is warmest in April at about 29°C and coldest in August near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Warm
Jul27Warm
Aug27Warm
Sep27Warm
Oct27Warm
Nov27Warm
Dec28Warm

UV index in Horizonte 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 Horizonte peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 16UV 15Jun 23UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme
Location & terrain

Where is Horizonte?

Horizonte sits at 4.1°S, 38.5°W, 95 m above sea level, in Brazil. The nearest listed city is Pacajus, 9.0 km away.

Topography around Horizonte

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

Within 3 km, the terrain around Horizonte has only modest variations in elevation — a maximum elevation change of 38 m around an average of 65 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 262 m; within 80 km, large variations in elevation — a maximum elevation change of 1,081 m.

The land around Horizonte is covered by grassland (44%), artificial surfaces (26%) and trees (20%) within 3 km, grassland (44%) and trees (29%) within 16 km, and shrubs (27%), water (27%) and grassland (22%) within 80 km.

3 km
38 m
16 km
262 m
80 km
1,081 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Pacajus 9.0 km · Itaitinga 15 km · Guaiúba 18 km · Pacatuba 20 km · Pindoretama 22 km · Chorozinho 23 km · Eusébio 23 km · Aquiraz 24 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 Horizonte (-4.098°, -38.486°, elevation 95 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).