Ciudad Sandino weather in September

In September, Ciudad Sandino sees average daytime highs of 32°C and overnight lows near 24°C, with 168 mm of rain across 22 wet days and about 12.1 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 9% of the time in September, and the air most often feels oppressive.

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

Daytime high
32°
11th warmest
Overnight low
24°
7th coldest
Rainfall
168 mm
22 wet days
Daylight
12 h 06 min
5:38 AM – 5:42 PM
Cloud cover
75%
11th clearest
Wind
8 km/h
11th windiest
Solar energy
5.21 kWh/m²
Travel score
2.6
out of 10

Ciudad Sandino is Town in Managua Department, Nicaragua. Seat of the Ciudad Sandino Municipality..

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 32°C through the month.

A typical September day in Ciudad Sandino reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, September runs about 1°C cooler than August and about 1°C warmer than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13324
23324
33324
43324
53324
63324
73324
83324
93324
103324
113324
123324
133324
143324
153224
163224
173224
183224
193224
203224
213224
223224
233224
243224
253224
263224
273224
283224
293224
303224

How September really feels in Ciudad Sandino

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.

Ciudad Sandino 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
Jan33° / 23°10.211.44.5
Feb34° / 23°10.211.64.0
Mar35° / 23°10.311.93.2
Apr36° / 25°132.812.32.3
May35° / 25°1461512.62.3
Jun32° / 25°15318.912.72.8
Jul33° / 25°6911.512.63.2
Aug33° / 24°10915.612.42.8
Sep32° / 24°1682212.12.6
Oct31° / 24°18721.111.73.1
Nov33° / 24°466.811.44.0
Dec33° / 23°50.711.34.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 77%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12674
22773
32773
42773
52773
62773
72773
82773
92773
102674
112674
122575
132476
142476
152476
162377
172377
182278
192278
202179
212179
222179
231981
241981
251981
261981
271981
281981
291981
301981

Chance of precipitation in September

Any precipitation

Ciudad Sandino gets around 168 mm of rain over 22 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 73% and peaks near 81% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
165
265
365
465
565
666
766
867
967
1068
1169
1270
1371
1472
1573
1674
1775
1876
1977
2078
2179
2280
2380
2480
2581
2681
2780
2880
2980
3079

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 85% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
118775
218775
317776
416786
516786
615796
715796
814806
914806
1013816
1112826
1212826
1311836
1410846
159847
168857
177867
186877
195887
205887
214897
223907
233907
243907
252917
262917
272917
282917
292926
302926

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 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 18 minutes over September. Sunrise moves from 5:38 AM to 5:38 AM, and sunset from 5:52 PM to 5:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:385:52
212.25:385:52
312.25:385:51
412.25:385:50
512.25:385:49
612.25:385:49
712.25:385:48
812.25:385:47
912.15:385:47
1012.15:385:46
1112.15:385:45
1212.15:385:45
1312.15:385:44
1412.15:385:43
1512.15:385:42
1612.15:385:42
1712.15:385:41
1812.05:385:40
1912.05:385:40
2012.05:385:39
2112.05:385:38
2212.05:385:37
2312.05:385:37
2412.05:385:36
2512.05:385:35
2612.05:385:35
2711.95:385:34
2811.95:385:33
2911.95:385:33
3011.95:385:32

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.21 kWh/m².

For context, solar energy here swings from a low near 4.69 kWh/m² to a high of 6.63 kWh/m² in April across the year — September's 5.21 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.2Bright
165.2Bright
175.2Bright
185.1Bright
195.1Bright
205.1Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.8Bright
304.8Bright
Planning a trip in September

Hazard calendar for Ciudad Sandino

In seasonPeak

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

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

Ciudad Sandino's rainy season runs August–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 Ciudad Sandino?

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

2.6
Sightseeing
10th-best month of the year
4.4
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Ciudad Sandino.

What to pack for Ciudad Sandino in September

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

In September, Ciudad Sandino sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

Sea temperature near Ciudad Sandino in September

The nearest coast averages about 29°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 44 km away) is warmest in September at about 29°C and coldest in February near 27°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr28Warm
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec28Warm

UV index in Ciudad Sandino 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 Ciudad Sandino 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
Apr13Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov10Very high
Dec9Very high

Air quality in Ciudad Sandino 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 Ciudad Sandino is worst in July — around 25 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (January, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1625 µg/m³Jan 187 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar10Good
Apr21Moderate
May24Moderate
Jun21Moderate
Jul25Moderate
Aug20Moderate
Sep15Moderate
Oct13Moderate
Nov11Good
Dec10Good
Location & terrain

Where is Ciudad Sandino?

Ciudad Sandino sits at 12.2°N, 86.3°W, 105 m above sea level, in Nicaragua. The nearest listed city is Managua, 11 km away.

San MarcosMasayaMasatepe

Topography around Ciudad Sandino

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

Within 3 km, the terrain around Ciudad Sandino has only modest variations in elevation — a maximum elevation change of 178 m around an average of 101 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 742 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,347 m.

The land around Ciudad Sandino is covered by artificial surfaces (35%) and trees (25%) within 3 km, trees (47%) and water (22%) within 16 km, and trees (35%), water (31%) and grassland (26%) within 80 km.

3 km
178 m
16 km
742 m
80 km
1,347 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Managua 11 km · Mateare 12 km · El Crucero 19 km · Nagarote 27 km · Tipitapa 27 km · San Marcos 32 km · Masaya 34 km · Masatepe 35 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 Ciudad Sandino (12.1589°, -86.3442°, elevation 105 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).