Sonzacate weather in September

In September, Sonzacate sees average daytime highs of 28°C and overnight lows near 22°C, with 398 mm of rain across 29.3 wet days and about 12.1 hours of daylight. It is the 11th-warmest and 1st-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 2% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Sonzacate's 12th-clearest and 8th-windiest month. For the whole year in context, see Sonzacate's year-round climate.

Daytime high
28°
11th warmest
Overnight low
22°
7th coldest
Rainfall
398 mm
29.3 wet days
Daylight
12 h 06 min
5:51 AM – 5:55 PM
Cloud cover
85%
12th clearest
Wind
5 km/h
8th windiest
Solar energy
5.05 kWh/m²
Travel score
3.2
out of 10

Sonzacate is district in Central Sonsonate, El Salvador.

Density
1,839/km²
people per km²

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 Sonzacate reaches about 28°C in the afternoon and slips back to 22°C overnight — a 6°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 about 1°C cooler than August and on par with October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12822
22822
32822
42822
52822
62822
72822
82822
92822
102822
112822
122822
132822
142822
152822
162822
172822
182822
192822
202822
212822
222822
232822
242822
252822
262822
272822
282822
292822
302822

How September really feels in Sonzacate

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.

Sonzacate weather by month

How September compares with the rest of the year at a glance. September is the 11th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 20°51.511.37.0
Feb30° / 20°51.711.56.6
Mar30° / 21°185.411.95.7
Apr30° / 22°6514.312.34.6
May29° / 22°26726.512.63.4
Jun29° / 22°32828.112.83.1
Jul29° / 22°25026.212.73.4
Aug29° / 22°29827.812.53.2
Sep28° / 22°39829.312.13.2
Oct28° / 21°33626.311.73.8
Nov29° / 21°7311.711.45.6
Dec29° / 20°122.911.26.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 8% of September, with mostly cloudy or overcast conditions the remaining 90%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11387
21387
31387
41288
51288
61288
71189
81189
91189
101189
111189
121090
13991
14991
15991
16991
17991
18991
19892
20892
21892
22892
23892
24892
25892
261090
271090
281090
291189
301288

Chance of precipitation in September

Any precipitation

Sonzacate gets around 398 mm of rain over 29.3 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 97% and peaks near 98% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
197
297
397
497
597
697
797
897
997
1097
1197
1297
1397
1497
1597
1697
1797
1898
1998
2098
2198
2298
2398
2498
2598
2698
2798
2898
2997
3097

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)
1595
2595
3595
4595
5595
6595
7595
8595
9595
10595
11595
12595
13496
14496
15496
16496
17496
18496
19496
20496
21496
22496
23496
24496
25595
26595
27595
28694
29694
30694

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 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 24 minutes over September. Sunrise moves from 5:50 AM to 5:51 AM, and sunset from 6:07 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:506:07
212.35:516:06
312.25:516:05
412.25:516:04
512.25:516:04
612.25:516:03
712.25:516:02
812.25:516:02
912.25:516:01
1012.25:516:00
1112.15:515:59
1212.15:515:59
1312.15:515:58
1412.15:515:57
1512.15:515:56
1612.15:515:55
1712.15:515:55
1812.05:515:54
1912.05:515:53
2012.05:515:52
2112.05:515:52
2212.05:515:51
2312.05:515:50
2412.05:515:49
2512.05:515:49
2611.95:515:48
2711.95:515:47
2811.95:515:46
2911.95:515:46
3011.95:515:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.05 kWh/m².

For context, solar energy here swings from a low near 4.89 kWh/m² to a high of 6.48 kWh/m² in March across the year — September's 5.05 kWh/m² sits near the bottom.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.2Bright
125.2Bright
135.2Bright
145.1Bright
155.1Bright
165.1Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
214.9Bright
224.9Bright
234.9Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.7Bright
Planning a trip in September

Hazard calendar for Sonzacate

In seasonPeak

In September, Sonzacate sits inside its atlantic hurricane and monsoon season. The full year is below, with each hazard's peak months called out.

Sonzacate sits in the Atlantic hurricane belt; the season peaks August–October.

Sonzacate's monsoon runs May–October, when most of the year's rain falls.

Atlantic hurricane
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Sonzacate?

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

3.2
Sightseeing
10th-best month of the year
3.6
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Sonzacate.

What to pack for Sonzacate in September

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

In September, Sonzacate sees daytime highs around 28°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

light clothesrain gearsun protection

Sea temperature near Sonzacate in September

The nearest coast averages about 30°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 21 km away) is warmest in August at about 30°C and coldest in January near 28°C.

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

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Sonzacate 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 Sonzacate peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 10UV 13Nov 23UV 9
UV index (midday)Level
Jan9Very high
Feb13Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Sonzacate 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 Sonzacate is worst in May — around 31 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (January, 14 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1230 µg/m³Jan 1914 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb14Moderate
Mar17Moderate
Apr28Moderate
May31Moderate
Jun21Moderate
Jul23Moderate
Aug21Moderate
Sep20Moderate
Oct19Moderate
Nov19Moderate
Dec15Moderate
Location & terrain

Where is Sonzacate?

Sonzacate sits at 13.7°N, 89.7°W, 275 m above sea level, in El Salvador. The nearest listed city is Sonsonate, 2.0 km away.

AcajutlaAhuachapanChalchuapaSanta AnaSanta TeclaQuezaltepeque

Topography around Sonzacate

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

Within 3 km, the terrain around Sonzacate has significant variations in elevation — a maximum elevation change of 268 m around an average of 309 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,324 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,353 m.

The land around Sonzacate is covered by trees (58%) and artificial surfaces (24%) within 3 km, trees (69%) and grassland (22%) within 16 km, and trees (40%), water (30%) and grassland (20%) within 80 km.

3 km
268 m
16 km
2,324 m
80 km
2,353 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
September weather nearby: Sonsonate 2.0 km · Izalco 5.0 km · Acajutla 20 km · Ahuachapan 25 km · Chalchuapa 28 km · Santa Ana 33 km · Santa Tecla 47 km · Quezaltepeque 49 km

El Salvador travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
115 V · 60 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$5,767
2025
Happiness
6.6 / 10
World Happiness, 2025
Homicide rate
7.9
per 100k, 2022
Road deaths
20.9
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 523
Religion
Roman Catholic 44%Protestant 40%none 16%

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 Sonzacate (13.7342°, -89.7147°, elevation 275 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).