Somotillo weather in September

In September, Somotillo sees average daytime highs of 33°C and overnight lows near 24°C, with 319 mm of rain across 25.9 wet days and about 12.1 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 34°C in the first days to 32°C by the end. The sky is clear or mostly clear about 8% 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 Somotillo's 11th-clearest and 11th-windiest month. For the whole year in context, see Somotillo's year-round climate.

Daytime high
33°
11th warmest
Overnight low
24°
6th coldest
Rainfall
319 mm
25.9 wet days
Daylight
12 h 06 min
5:40 AM – 5:44 PM
Cloud cover
76%
11th clearest
Wind
4 km/h
11th windiest
Solar energy
5.37 kWh/m²
Travel score
2.2
out of 10

Somotillo is Town in Nicaragua, administrative center for Municipality of Somotillo.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 34°C in the first days to 32°C by the end.

A typical September day in Somotillo 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 36°C. Set against its neighbours, September runs about 2°C cooler than August and about 1°C warmer than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13424
23424
33424
43424
53424
63424
73324
83324
93324
103324
113324
123324
133324
143324
153324
163324
173324
183324
193324
203324
213224
223224
233224
243224
253224
263224
273224
283224
293224
303224

How September really feels in Somotillo

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
6 feel dangerously hot (≥ 39°C)
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.

Somotillo weather by month

How September compares with the rest of the year at a glance. September is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan35° / 23°10.311.33.2
Feb36° / 24°10.211.62.5
Mar37° / 24°50.911.91.7
Apr38° / 26°356.612.31.2
May35° / 25°25120.812.61.7
Jun33° / 24°25121.812.82.2
Jul35° / 25°12014.612.72.3
Aug35° / 25°20120.112.42.0
Sep33° / 24°31925.912.12.2
Oct32° / 23°3422411.72.7
Nov33° / 23°668.411.43.7
Dec34° / 23°41.311.23.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 76%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12773
22773
32773
42773
52773
62773
72773
82674
92674
102674
112575
122575
132575
142575
152476
162377
172278
182278
192179
202179
212179
222179
232080
242080
252179
262179
272179
282179
292278
302278

Chance of precipitation in September

Any precipitation

Somotillo gets around 319 mm of rain over 25.9 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 86% and peaks near 92% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
179
280
380
480
581
681
781
881
982
1082
1183
1283
1384
1485
1586
1687
1787
1888
1989
2090
2190
2291
2391
2492
2592
2692
2791
2891
2991
3090

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 67% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
1106426
296526
386626
486527
576627
676627
776627
866628
966628
1066529
1156629
1256530
1356530
1446531
1546531
1636532
1736532
1826632
1926632
2026632
2116732
2216732
2316831
2406931
2507030
2607030
2707129
2807129
2907129
3007129

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 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
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 5:40 AM to 5:40 AM, and sunset from 5:55 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:405:55
212.25:405:54
312.25:405:54
412.25:405:53
512.25:405:52
612.25:405:51
712.25:405:51
812.25:405:50
912.25:405:49
1012.15:405:49
1112.15:405:48
1212.15:405:47
1312.15:405:46
1412.15:405:46
1512.15:405:45
1612.15:405:44
1712.15:405:43
1812.05:405:43
1912.05:405:42
2012.05:405:41
2112.05:405:40
2212.05:405:40
2312.05:405:39
2412.05:405:38
2512.05:405:37
2611.95:405:37
2711.95:405:36
2811.95:405:35
2911.95:405:35
3011.95:405:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.37 kWh/m².

For context, solar energy here swings from a low near 4.86 kWh/m² to a high of 6.65 kWh/m² in March across the year — September's 5.37 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.5Bright
125.5Bright
135.5Bright
145.4Bright
155.4Bright
165.4Bright
175.3Bright
185.3Bright
195.3Bright
205.2Bright
215.2Bright
225.2Bright
235.1Bright
245.1Bright
255.1Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in September

Hazard calendar for Somotillo

In seasonPeak

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

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

Somotillo's monsoon runs August–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 Somotillo?

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

2.2
Sightseeing
7th-best month of the year
3.8
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Somotillo.

What to pack for Somotillo in September

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

In September, Somotillo sees daytime highs around 33°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

Sea temperature near Somotillo 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 52 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
Oct30Tropical
Nov29Tropical
Dec28Tropical

UV index in Somotillo in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Somotillo peaks around March 22 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 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 highMar 22UV 14Dec 14UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in Somotillo 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 Somotillo is worst in April — around 35 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (January, 11 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateApr 2234 µg/m³Jan 1511 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar19Moderate
Apr35Moderate
May33Moderate
Jun24Moderate
Jul26Moderate
Aug22Moderate
Sep19Moderate
Oct18Moderate
Nov17Moderate
Dec12Moderate
Location & terrain

Where is Somotillo?

Somotillo sits at 13.0°N, 86.9°W, 50 m above sea level, in Nicaragua. The nearest listed city is Ciudad Choluteca, 42 km away.

Ciudad CholutecaEl ViejoMarcoviaChinandegaChichigalpaEstelíSomotoLeón

Topography around Somotillo

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

Within 3 km, the terrain around Somotillo has only modest variations in elevation — a maximum elevation change of 69 m around an average of 49 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 468 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,753 m.

The land around Somotillo is covered by grassland (47%) and trees (33%) within 3 km, grassland (48%) and trees (42%) within 16 km, and trees (41%) and grassland (32%) within 80 km.

3 km
69 m
16 km
468 m
80 km
1,753 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
September weather nearby: Ciudad Choluteca 42 km · El Viejo 51 km · Marcovia 52 km · Chinandega 52 km · Chichigalpa 54 km · Estelí 60 km · Somoto 60 km · León 68 km

Nicaragua travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$3,173
2025
Happiness
6.3 / 10
World Happiness, 2025
Homicide rate
11.3
per 100k, 2021
Road deaths
16.9
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Moderate
EF EPI 512
Religion
Roman Catholic 45%Protestant 39%none 14%other 1%

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 Somotillo (13.0439°, -86.9051°, elevation 50 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).