Samborondón weather in September

In September, Samborondón sees average daytime highs of 28°C and overnight lows near 21°C, with 142 mm of rain across 18.9 wet days and about 12 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 0% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 hours at the start of September to 12 hours by month's end. Set against the rest of the year, September is Samborondón's 4th-clearest and 3rd-windiest month. For the whole year in context, see Samborondón's year-round climate.

Daytime high
28°
9th warmest
Overnight low
21°
2nd coldest
Rainfall
142 mm
18.9 wet days
Daylight
12 hours
6:14 AM – 6:13 PM
Cloud cover
85%
4th clearest
Wind
7 km/h
3rd windiest
Solar energy
3.7 kWh/m²
Travel score
4.7
out of 10

Samborondón is city of Guayas Province, Ecuador.

Founded
1776

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 28°C through the month.

A typical September day in Samborondón reaches about 28°C in the afternoon and slips back to 21°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°C. Set against its neighbours, September runs on par with August and on par with October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12821
22821
32821
42821
52821
62821
72821
82821
92821
102821
112821
122821
132821
142821
152821
162821
172821
182821
192821
202821
212821
222821
232821
242821
252821
262821
272821
282821
292821
302821

How September really feels in Samborondón

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.

Samborondón weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 23°32725.812.13.5
Feb29° / 23°4142612.13.0
Mar29° / 23°43826.9123.1
Apr29° / 23°39026123.1
May29° / 23°30725.111.93.5
Jun28° / 22°20722.311.94.2
Jul27° / 21°16221.211.94.6
Aug27° / 21°12118.111.94.9
Sep28° / 21°14218.9124.7
Oct28° / 21°9715125.1
Nov29° / 22°7510.712.15.1
Dec29° / 23°16116.612.14.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 7% of September, with mostly cloudy or overcast conditions the remaining 92%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1991
2991
31090
41090
51189
61189
71189
81189
91189
101189
111189
121189
131090
141090
15892
16892
17793
18793
19694
20694
21595
22595
23595
24496
25496
26496
27496
28595
29595
30595

Chance of precipitation in September

Any precipitation

Samborondón gets around 142 mm of rain over 18.9 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 63% and peaks near 65% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
164
265
365
465
565
665
765
864
964
1064
1164
1264
1364
1464
1564
1664
1764
1864
1964
2063
2163
2262
2362
2461
2561
2660
2760
2859
2959
3058

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 76% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
108020
208020
308020
408020
508020
608020
707921
817821
917821
1017722
1117722
1217623
1317623
1417524
1517524
1617524
1717425
1817425
1917326
2017326
2117326
2217326
2317326
2407426
2507426
2607426
2707426
2807426
2907525
3007525

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 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
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 hours 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 0 minutes over September. Sunrise moves from 6:20 AM to 6:08 AM, and sunset from 6:17 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:206:17
212.06:196:17
312.06:196:17
412.06:196:17
512.06:186:16
612.06:186:16
712.06:176:16
812.06:176:15
912.06:176:15
1012.06:166:15
1112.06:166:14
1212.06:156:14
1312.06:156:14
1412.06:146:14
1512.06:146:13
1612.06:146:13
1712.06:136:13
1812.06:136:12
1912.06:126:12
2012.06:126:12
2112.06:116:11
2212.06:116:11
2312.06:116:11
2412.06:106:10
2512.06:106:10
2612.06:096:10
2712.06:096:10
2812.06:096:09
2912.06:086:09
3012.06:086:09

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.7 kWh/m².

For context, solar energy here swings from a low near 2.97 kWh/m² to a high of 3.82 kWh/m² in November across the year — September's 3.7 kWh/m² sits near the top of that range.

01234151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.7Moderate
43.8Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.8Moderate
93.8Moderate
103.8Moderate
113.7Moderate
123.7Moderate
133.7Moderate
143.7Moderate
153.7Moderate
163.7Moderate
173.7Moderate
183.7Moderate
193.7Moderate
203.7Moderate
213.6Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.6Moderate
Planning a trip in September

Hazard calendar for Samborondón

In seasonPeak

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

Samborondón's rainy season runs January–June, 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 Samborondón?

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

4.7
Sightseeing
4th-best month of the year
5.0
Beach & pool
5th-best month of the year

September is a reasonable time to visit Samborondón for sightseeing.

What to pack for Samborondón in September

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

In September, Samborondón sees daytime highs around 28°C and nights near 21°C. Pack light clothes and rain gear. About 19 days see rain.

light clothesrain gear

UV index in Samborondón in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Samborondón peaks around March 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 16 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 13UV 14Jul 16UV 10
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr12Extreme
May12Extreme
Jun10Extreme
Jul9Very high
Aug11Extreme
Sep11Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Samborondón 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 Samborondón is worst in November — around 35 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (February, 22 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateNov 1734 µg/m³Feb 1522 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb22Moderate
Mar23Moderate
Apr24Moderate
May25Moderate
Jun27Moderate
Jul29Moderate
Aug29Moderate
Sep31Moderate
Oct27Moderate
Nov35Moderate
Dec28Moderate
Location & terrain

Where is Samborondón?

Samborondón sits at 2.0°S, 79.7°W, 17 m above sea level, in Ecuador. The nearest listed city is Yaguachi Nuevo, 16 km away.

Topography around Samborondón

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

Within 3 km, the terrain around Samborondón has only modest variations in elevation — a maximum elevation change of 64 m around an average of 3 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 283 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,255 m.

The land around Samborondón is covered by cropland (50%) and wetland (28%) within 3 km, wetland (39%) and cropland (38%) within 16 km, and trees (41%) and grassland (29%) within 80 km.

3 km
64 m
16 km
283 m
80 km
3,255 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Yaguachi Nuevo 16 km · Milagro 24 km · Eloy Alfaro 26 km · El Triunfo 27 km · Babahoyo 28 km · Daule 30 km · Guayaquil 32 km · Naranjito 37 km

Ecuador travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 43% of US
price level, 2025
GDP per capita
$7,125
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
70%
of population, 2024
Homicide rate
45.7
per 100k, 2023
Road deaths
20.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 466
Religion
Roman Catholic 68%Protestant 19%none 8%other 2%

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 Samborondón (-1.9607°, -79.7257°, elevation 17 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).