San Francisco Gotera weather in September

In September, San Francisco Gotera sees average daytime highs of 30°C and overnight lows near 21°C, with 316 mm of rain across 26.5 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 6% 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 San Francisco Gotera's 11th-clearest and 11th-windiest month. For the whole year in context, see San Francisco Gotera's year-round climate.

Daytime high
30°
10th warmest
Overnight low
21°
7th coldest
Rainfall
316 mm
26.5 wet days
Daylight
12 h 06 min
5:44 AM – 5:49 PM
Cloud cover
79%
11th clearest
Wind
4 km/h
11th windiest
Solar energy
5.47 kWh/m²
Travel score
2.9
out of 10

San Francisco Gotera is city in El Salvador.

Density
270/km²
people per km²
Founded
1875

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 30°C through the month.

A typical September day in San Francisco Gotera reaches about 30°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 33°C. Set against its neighbours, September runs about 2°C cooler than August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13121
23121
33121
43121
53121
63121
73121
83121
93121
103121
113021
123021
133021
143021
153021
163021
173021
183021
193021
203021
213021
223021
233021
243021
253021
263021
273021
283021
292921
302921

How September really feels in San Francisco Gotera

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.

San Francisco Gotera weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 19°20.411.35.3
Feb33° / 20°20.611.54.4
Mar34° / 21°143.111.93.7
Apr34° / 22°6810.712.33.1
May32° / 22°28223.312.62.8
Jun31° / 22°26423.412.83.1
Jul32° / 22°1461712.73.4
Aug32° / 22°21321.312.53.0
Sep30° / 21°31626.512.12.9
Oct29° / 21°28923.111.73.7
Nov30° / 20°557.711.45.3
Dec31° / 19°51.211.25.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 79%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12575
22575
32575
42476
52476
62476
72476
82476
92377
102377
112377
122278
132179
142179
152179
162080
172080
182080
191981
201882
211882
221882
231882
241882
251882
261882
271882
281882
291981
301981

Chance of precipitation in September

Any precipitation

San Francisco Gotera gets around 316 mm of rain over 26.5 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 88% and peaks near 91% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
182
283
384
484
585
685
785
885
986
1086
1186
1287
1387
1488
1588
1688
1789
1889
1990
2090
2191
2291
2391
2491
2591
2690
2790
2890
2989
3089

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 73% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
133760
233760
323662
423662
523563
623464
723464
823365
923266
1023167
1123068
1222969
1322870
1422672
1512574
1612475
1712376
1812178
1912079
2012079
2111980
2201882
2301882
2401882
2501882
2601882
2701981
2801981
2902080
3002179

Wind in September

Winds average 4 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

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 5:44 AM to 5:45 AM, and sunset from 6:00 PM to 5:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:446:00
212.35:445:59
312.25:445:59
412.25:445:58
512.25:445:57
612.25:445:57
712.25:445:56
812.25:445:55
912.25:445:54
1012.25:445:54
1112.15:445:53
1212.15:445:52
1312.15:445:51
1412.15:445:51
1512.15:445:50
1612.15:445:49
1712.15:445:48
1812.05:455:47
1912.05:455:47
2012.05:455:46
2112.05:455:45
2212.05:455:44
2312.05:455:44
2412.05:455:43
2512.05:455:42
2611.95:455:41
2711.95:455:41
2811.95:455:40
2911.95:455:39
3011.95:455:38

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.47 kWh/m².

For context, solar energy here swings from a low near 4.96 kWh/m² to a high of 6.54 kWh/m² in March across the year — September's 5.47 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.6Bright
135.6Bright
145.6Bright
155.5Bright
165.5Bright
175.4Bright
185.4Bright
195.4Bright
205.3Bright
215.3Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.1Bright
275.1Bright
285.1Bright
295.0Bright
305.0Bright
Planning a trip in September

Hazard calendar for San Francisco Gotera

In seasonPeak

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

San Francisco Gotera sits in the Atlantic hurricane belt; the season peaks August–October.

San Francisco Gotera's rainy season runs May–October, when most of the year's rain falls.

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

Is September a good time to visit San Francisco Gotera?

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

2.9
Sightseeing
11th-best month of the year
4.1
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in San Francisco Gotera.

What to pack for San Francisco Gotera in September

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

In September, San Francisco Gotera sees daytime highs around 30°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

Sea temperature near San Francisco Gotera 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 63 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
Jan28Warm
Feb28Warm
Mar28Tropical
Apr29Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in San Francisco Gotera 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 San Francisco Gotera peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 13Dec 15UV 9
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov10Very high
Dec9Very high

Air quality in San Francisco Gotera 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 San Francisco Gotera is worst in April — around 34 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (January, 10 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 2233 µg/m³Jan 1010 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar20Moderate
Apr34Moderate
May32Moderate
Jun21Moderate
Jul24Moderate
Aug20Moderate
Sep18Moderate
Oct17Moderate
Nov14Moderate
Dec10Good
Location & terrain

Where is San Francisco Gotera?

San Francisco Gotera sits at 13.7°N, 88.1°W, 249 m above sea level, in El Salvador. The nearest listed city is San Miguel, 25 km away.

San MiguelColomoncaguaSan Rafael OrienteSantiago de MaríaLa UniónLangueUsulutánSensuntepeque

Topography around San Francisco Gotera

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

Within 3 km, the terrain around San Francisco Gotera has significant variations in elevation — a maximum elevation change of 456 m around an average of 310 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,540 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,320 m.

The land around San Francisco Gotera is covered by trees (62%) and grassland (30%) within 3 km, trees (66%) and grassland (32%) within 16 km, and trees (57%) and grassland (23%) within 80 km.

3 km
456 m
16 km
1,540 m
80 km
2,320 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
September weather nearby: San Miguel 25 km · Colomoncagua 34 km · San Rafael Oriente 44 km · Santiago de María 46 km · La Unión 49 km · Langue 49 km · Usulután 53 km · Sensuntepeque 60 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 San Francisco Gotera (13.6941°, -88.1041°, elevation 249 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).