Esmeraldas weather in September

In September, Esmeraldas sees average daytime highs of 27°C and overnight lows near 23°C, with 67 mm of rain across 13.3 wet days and about 12 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 1% of the time in September, and the air most often feels oppressive.

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 Esmeraldas's 12th-clearest and 2nd-windiest month. For the whole year in context, see Esmeraldas's year-round climate.

Daytime high
27°
11th warmest
Overnight low
23°
2nd coldest
Rainfall
67 mm
13.3 wet days
Daylight
12 hours
6:13 AM – 6:13 PM
Cloud cover
83%
12th clearest
Wind
17 km/h
2nd windiest
Solar energy
4.51 kWh/m²
Travel score
5.6
out of 10

Esmeraldas is city in Ecuador, capital of the Esmeraldas Province.

Density
7,680/km²
people per km²
Founded
1526

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 27°C through the month.

A typical September day in Esmeraldas reaches about 27°C in the afternoon and slips back to 23°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°C. Set against its neighbours, September runs on par with August and on par with October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12723
22723
32723
42723
52723
62723
72723
82723
92723
102723
112723
122723
132723
142723
152723
162723
172723
182723
192723
202723
212723
222723
232723
242723
252723
262723
272723
282723
292723
302723

Esmeraldas weather by month

How September compares with the rest of the year at a glance. September is the 11th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 24°25624.2124.3
Feb27° / 24°24122124.1
Mar28° / 24°20321.4124.5
Apr28° / 24°20420.3124.6
May28° / 24°14920.2124.7
Jun27° / 24°10916.412.15.1
Jul27° / 23°9816.2125.3
Aug27° / 23°7614.4125.6
Sep27° / 23°6713.3125.6
Oct27° / 23°6211.8125.8
Nov27° / 23°7610.8126.0
Dec27° / 24°13816.211.95.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 89%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11387
21387
31486
41486
51486
61486
71585
81486
91486
101387
111387
121387
131288
141288
151189
161189
171189
181090
191090
201090
211090
221090
231090
241090
251090
261090
271090
281090
291090
301090

Chance of precipitation in September

Any precipitation

Esmeraldas gets around 67 mm of rain over 13.3 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 44% and peaks near 45% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
143
244
344
444
544
644
744
843
943
1043
1143
1243
1343
1442
1542
1642
1742
1843
1943
2043
2144
2244
2344
2444
2544
2645
2745
2845
2945
3045

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)
14456
24555
34555
44555
54456
64456
74456
84357
94357
104258
114258
124159
134159
144060
153961
163862
173763
183664
193565
203466
213466
223367
233268
243268
253268
263169
273169
283169
293169
303169

Wind in September

Winds average 17 km/h in September.

Across September, daily wind ranges from about 17 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze

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 6:18 AM to 6:08 AM, and sunset from 6:19 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:186:19
212.06:176:19
312.06:176:18
412.06:176:18
512.06:176:17
612.06:166:17
712.06:166:17
812.06:166:16
912.06:156:16
1012.06:156:15
1112.06:156:15
1212.06:146:15
1312.06:146:14
1412.06:136:14
1512.06:136:13
1612.06:136:13
1712.06:126:13
1812.06:126:12
1912.06:126:12
2012.06:116:12
2112.06:116:11
2212.06:116:11
2312.06:106:10
2412.06:106:10
2512.06:106:10
2612.06:096:09
2712.06:096:09
2812.06:096:08
2912.06:086:08
3012.06:086:08

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.51 kWh/m².

For context, solar energy here swings from a low near 3.92 kWh/m² to a high of 4.78 kWh/m² in March across the year — September's 4.51 kWh/m² sits near the top of that range.

024151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.4Bright
294.4Bright
304.4Bright
Planning a trip in September

Hazard calendar for Esmeraldas

In seasonPeak

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

Esmeraldas's rainy season runs December–May, 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 Esmeraldas?

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

5.6
Sightseeing
3rd-best month of the year
5.6
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Esmeraldas for sightseeing.

What to pack for Esmeraldas in September

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

In September, Esmeraldas sees daytime highs around 27°C and nights near 23°C. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

Sea temperature near Esmeraldas 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 19 km away) is warmest in May at about 27°C and coldest in January near 26°C.

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

24°26°28°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb27Warm
Mar27Warm
Apr27Warm
May27Warm
Jun27Warm
Jul27Warm
Aug27Warm
Sep27Warm
Oct27Warm
Nov26Warm
Dec26Warm

UV index in Esmeraldas 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 Esmeraldas peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 19 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 12UV 15Jul 19UV 11
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Esmeraldas 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 Esmeraldas is worst in March — around 18 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (July, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateMar 1618 µg/m³Jul 199 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb15Moderate
Mar18Moderate
Apr15Moderate
May12Good
Jun10Good
Jul9Good
Aug10Good
Sep11Good
Oct12Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Esmeraldas?

Esmeraldas sits at 1.0°N, 79.7°W, 18 m above sea level, in Ecuador. The nearest listed city is Rosa Zarate, 73 km away.

TumacoSanto Domingo de los ColoradosMindoAtuntaquiOtavaloPomasqui

Topography around Esmeraldas

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

Within 3 km, the terrain around Esmeraldas has significant variations in elevation — a maximum elevation change of 261 m around an average of 57 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 628 m; within 80 km, large variations in elevation — a maximum elevation change of 762 m.

The land around Esmeraldas is covered by trees (33%), artificial surfaces (24%) and grassland (23%) within 3 km, trees (45%) and water (44%) within 16 km, and trees (52%) and water (42%) within 80 km.

3 km
261 m
16 km
628 m
80 km
762 m
treesgrasslandartificial surfaceswaterwetlandmangroves
September weather nearby: Rosa Zarate 73 km · San Lorenzo de Esmeraldas 98 km · Tumaco 133 km · Santo Domingo de los Colorados 145 km · Mindo 149 km · Atuntaqui 174 km · Otavalo 174 km · Pomasqui 175 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 Esmeraldas (0.9592°, -79.654°, elevation 18 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. 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).