Ciudad Guayana weather in September

In September, Ciudad Guayana sees average daytime highs of 33°C and overnight lows near 24°C, with 112 mm of rain across 17.3 wet days and about 12 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 22% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Ciudad Guayana's 5th-clearest and 11th-windiest month. For the whole year in context, see Ciudad Guayana's year-round climate.

Daytime high
33°
5th warmest
Overnight low
24°
11th coldest
Rainfall
112 mm
17.3 wet days
Daylight
12 hours
5:34 AM – 5:36 PM
Cloud cover
63%
5th clearest
Wind
6 km/h
11th windiest
Solar energy
5.78 kWh/m²
Travel score
3.0
out of 10

Ciudad Guayana is city in Bolívar, Venezuela.

Density
2,383/km²
people per km²
Founded
1961

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 33°C through the month.

A typical September day in Ciudad Guayana reaches about 33°C in the afternoon and slips back to 24°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°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)
13224
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133324
143324
153324
163324
173324
183324
193324
203324
213324
223324
233324
243324
253324
263324
273324
283324
293324
303324

How September really feels in Ciudad Guayana

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.

Ciudad Guayana weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°234.411.64.9
Feb32° / 23°112.211.74.6
Mar33° / 23°111.911.93.8
Apr34° / 24°324.912.23.1
May33° / 24°10612.612.43.0
Jun32° / 24°16520.612.53.0
Jul31° / 23°19124.412.43.0
Aug32° / 24°16122.812.33.0
Sep33° / 24°11217.3123.0
Oct33° / 24°891611.83.0
Nov32° / 24°851611.63.3
Dec31° / 23°4810.211.54.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14951
24951
34951
44951
54852
64753
74654
84654
94654
104555
114456
124456
134357
144357
154357
164357
174357
184357
194456
204456
214456
224456
234456
244357
254357
264357
274258
284159
294159
303961

Chance of precipitation in September

Any precipitation

Ciudad Guayana gets around 112 mm of rain over 17.3 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 58% and peaks near 63% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
163
262
362
461
561
661
761
861
961
1060
1160
1260
1359
1459
1558
1658
1758
1857
1956
2056
2155
2255
2354
2453
2553
2653
2752
2852
2952
3052

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 68% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
117128
217128
317128
417029
517029
617029
716930
826830
926830
1026731
1126731
1226731
1326731
1426632
1526632
1626632
1736631
1836631
1936730
2046630
2146729
2246828
2356827
2456926
2566826
2666925
2767024
2867024
2967123
3067123

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over September. Sunrise moves from 5:35 AM to 5:32 AM, and sunset from 5:45 PM to 5:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:355:45
212.25:355:45
312.15:355:44
412.15:355:43
512.15:355:43
612.15:355:42
712.15:355:42
812.15:355:41
912.15:345:40
1012.15:345:40
1112.15:345:39
1212.15:345:39
1312.15:345:38
1412.15:345:37
1512.15:345:37
1612.05:345:36
1712.05:335:36
1812.05:335:35
1912.05:335:34
2012.05:335:34
2112.05:335:33
2212.05:335:33
2312.05:335:32
2412.05:325:31
2512.05:325:31
2612.05:325:30
2712.05:325:30
2812.05:325:29
2911.95:325:28
3011.95:325:28

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.78 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.43 kWh/m² to a high of 5.78 kWh/m² in September across the year — September's 5.78 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
Planning a trip in September

Hazard calendar for Ciudad Guayana

In seasonPeak

In September, Ciudad Guayana sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Ciudad Guayana's monsoon runs May–October, 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 Ciudad Guayana?

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

3.0
Sightseeing
7th-best month of the year
5.1
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Ciudad Guayana.

What to pack for Ciudad Guayana in September

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

In September, Ciudad Guayana sees daytime highs around 33°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in Ciudad Guayana 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 Ciudad Guayana peaks around March 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 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 highMar 19UV 14Dec 13UV 10
UV index (midday)Level
Jan12Extreme
Feb13Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct12Extreme
Nov10Extreme
Dec10Very high

Air quality in Ciudad Guayana 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 Ciudad Guayana is worst in April — around 27 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1726 µg/m³Nov 1912 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb18Moderate
Mar22Moderate
Apr27Moderate
May24Moderate
Jun23Moderate
Jul19Moderate
Aug14Moderate
Sep13Moderate
Oct13Moderate
Nov12Moderate
Dec13Moderate
Location & terrain

Where is Ciudad Guayana?

Ciudad Guayana sits at 8.4°N, 62.6°W, 103 m above sea level, in Venezuela. The nearest listed city is Upata, 45 km away.

TucupitaCiudad BolívarSoledadCiudad PiarGuasipati

Topography around Ciudad Guayana

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

Within 3 km, the terrain around Ciudad Guayana has only modest variations in elevation — a maximum elevation change of 111 m around an average of 79 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 326 m; within 80 km, large variations in elevation — a maximum elevation change of 723 m.

The land around Ciudad Guayana is covered by artificial surfaces (78%) within 3 km, trees (46%) and grassland (23%) within 16 km, and grassland (47%) and trees (41%) within 80 km.

3 km
111 m
16 km
326 m
80 km
723 m
treesgrasslandartificial surfaceswaterwetland
September weather nearby: Upata 45 km · Barrancas 62 km · Temblador 73 km · Tucupita 102 km · Ciudad Bolívar 103 km · Soledad 104 km · Ciudad Piar 125 km · Guasipati 127 km

Venezuela travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 0% of US
price level, 2011
GDP per capita
$3,495
2025
Happiness
5.8 / 10
World Happiness, 2025
Homicide rate
12.6
per 100k, 2022
Road deaths
39
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Moderate
EF EPI 520
Religion
Roman Catholic 48%Protestant 32%none 14%believer 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 Ciudad Guayana (8.3512°, -62.641°, elevation 103 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).