Pearl Lagoon weather in September

In September, Pearl Lagoon sees average daytime highs of 29°C and overnight lows near 25°C, with 271 mm of rain across 28.5 wet days and about 12.1 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 6% of the time in September, and the air most often feels miserable.

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 Pearl Lagoon's 8th-clearest and 12th-windiest month. For the whole year in context, see Pearl Lagoon's year-round climate.

Daytime high
29°
1st warmest
Overnight low
25°
7th coldest
Rainfall
271 mm
28.5 wet days
Daylight
12 h 06 min
5:27 AM – 5:31 PM
Cloud cover
82%
8th clearest
Wind
8 km/h
12th windiest
Solar energy
4.83 kWh/m²
Travel score
2.9
out of 10

Pearl Lagoon is Town in Nicaragua and seat of a second-order administrative division.

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 29°C through the month.

A typical September day in Pearl Lagoon reaches about 29°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12925
22925
32925
42925
52925
62925
72925
82925
92925
102925
112925
122925
132925
142925
152925
162925
172925
182925
192925
202925
212925
222925
232924
242924
252924
262924
272924
282924
292924
302924

How September really feels in Pearl Lagoon

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.

Pearl Lagoon weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 23°12224.911.44.6
Feb27° / 23°8321.411.64.8
Mar28° / 24°631911.95.3
Apr29° / 25°6918.112.34.6
May29° / 25°24125.812.63.3
Jun29° / 25°3482912.72.9
Jul29° / 25°36530.312.72.9
Aug29° / 25°31629.912.42.9
Sep29° / 25°27128.512.12.9
Oct29° / 24°32928.611.73.0
Nov28° / 24°2912611.43.7
Dec27° / 23°17126.311.34.1

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 12% of September, with mostly cloudy or overcast conditions the remaining 83%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11981
21981
31981
42080
52080
62080
72080
82080
91981
101882
111882
121882
131882
141882
151882
161783
171783
181783
191783
201684
211684
221684
231684
241585
251585
261585
271585
281585
291585
301486

Chance of precipitation in September

Any precipitation

Pearl Lagoon gets around 271 mm of rain over 28.5 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 95% and peaks near 96% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
195
295
394
494
594
694
794
894
994
1094
1194
1294
1394
1494
1594
1695
1795
1895
1995
2096
2196
2296
2396
2496
2596
2695
2795
2895
2994
3094

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the miserable band about 84% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
11387
21387
31486
41486
51486
61486
71486
81486
91486
101486
111486
121486
131486
141486
151486
161486
171486
181486
191585
201585
211684
221783
231783
241882
251981
262080
272080
282179
292278
302278

Wind in September

Winds average 8 km/h in September, the calmest month.

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
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
309calm

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 5:27 AM to 5:27 AM, and sunset from 5:42 PM to 5:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:275:42
212.25:275:41
312.25:275:40
412.25:275:40
512.25:275:39
612.25:275:38
712.25:275:37
812.25:275:37
912.15:275:36
1012.15:275:35
1112.15:275:35
1212.15:275:34
1312.15:275:33
1412.15:275:32
1512.15:275:32
1612.15:275:31
1712.15:275:30
1812.05:275:30
1912.05:275:29
2012.05:275:28
2112.05:275:27
2212.05:275:27
2312.05:275:26
2412.05:275:25
2512.05:275:25
2611.95:275:24
2711.95:275:23
2811.95:275:22
2911.95:275:22
3011.95:275:21

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.83 kWh/m².

For context, solar energy here swings from a low near 3.85 kWh/m² to a high of 6.05 kWh/m² in April across the year — September's 4.83 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
Planning a trip in September

Hazard calendar for Pearl Lagoon

In seasonPeak

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

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

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

Is September a good time to visit Pearl Lagoon?

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

2.9
Sightseeing
9th-best month of the year
3.8
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Pearl Lagoon.

What to pack for Pearl Lagoon in September

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

In September, Pearl Lagoon sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

light clothesrain gearsun protection

Sea temperature near Pearl Lagoon 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 offshore is warmest in September at about 29°C and coldest in January 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
Mar28Warm
Apr28Tropical
May29Tropical
Jun29Tropical
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Pearl Lagoon 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 Pearl Lagoon peaks around April 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 13UV 13Dec 16UV 9
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun13Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in Pearl Lagoon 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 Pearl Lagoon is worst in July — around 29 µg/m³ PM2.5 (moderate), about 4.6× the cleanest month (November, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1629 µg/m³Nov 217 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar10Good
Apr19Moderate
May23Moderate
Jun23Moderate
Jul29Moderate
Aug22Moderate
Sep15Moderate
Oct10Good
Nov6Good
Dec7Good
Location & terrain

Where is Pearl Lagoon?

Pearl Lagoon sits at 12.3°N, 83.7°W, 0 m above sea level, in Nicaragua. The nearest listed city is Bluefields, 38 km away.

BluefieldsRamaNueva GuineaEl CastilloRío BlancoSan CarlosJuigalpaPuerto Cabezas

Topography around Pearl Lagoon

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

Within 3 km, the terrain around Pearl Lagoon has only modest variations in elevation — a maximum elevation change of 13 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 189 m; within 80 km, large variations in elevation — a maximum elevation change of 611 m.

The land around Pearl Lagoon is covered by water (55%) and trees (20%) within 3 km, water (52%) and trees (31%) within 16 km, and water (46%), trees (29%) and grassland (22%) within 80 km.

3 km
13 m
16 km
189 m
80 km
611 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Bluefields 38 km · Rama 63 km · Nueva Guinea 112 km · El Castillo 167 km · Río Blanco 181 km · San Carlos 181 km · Juigalpa 186 km · Puerto Cabezas 191 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 Pearl Lagoon (12.3429°, -83.6712°, elevation 0 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).