Siuna weather in October

In October, Siuna sees average daytime highs of 29°C and overnight lows near 22°C, with 219 mm of rain across 27.2 wet days and about 11.7 hours of daylight. It is the 7th-warmest and 1st-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 7% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of October to 11 h 30 min by month's end. Set against the rest of the year, October is Siuna's 10th-clearest and 11th-windiest month. For the whole year in context, see Siuna's year-round climate.

Daytime high
29°
7th warmest
Overnight low
22°
7th coldest
Rainfall
219 mm
27.2 wet days
Daylight
11 h 42 min
5:34 AM – 5:15 PM
Cloud cover
79%
10th clearest
Wind
6 km/h
11th windiest
Solar energy
4.28 kWh/m²
Travel score
3.2
out of 10

Siuna is urban and populated area of the municipality of Siuna, Nicaragua.

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical October day in Siuna reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, October runs on par with September and about 1°C warmer than November.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13022
23022
33022
43022
53022
62922
72922
82922
92922
102922
112922
122922
132922
142922
152922
162922
172922
182922
192922
202922
212922
222922
232922
242922
252922
262922
272922
282922
292922
302922
312922

How October really feels in Siuna

Once humidity and wind are folded in, October averages 25 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
25
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Siuna weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 20°4516.311.35.7
Feb28° / 20°3213.111.55.7
Mar30° / 21°2911.111.95.2
Apr31° / 22°381112.34.2
May31° / 23°16721.412.63.2
Jun30° / 23°21627.312.82.9
Jul29° / 22°19928.812.73.1
Aug29° / 22°18128.412.53.0
Sep30° / 22°20027.512.12.9
Oct29° / 22°21927.211.73.2
Nov28° / 21°12420.511.44.5
Dec27° / 21°5617.711.25.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 80%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11684
21684
31684
41684
51684
61684
71684
81684
91684
101783
111783
121882
131882
141882
151882
161981
172080
182080
192080
202278
212179
222377
232377
242575
252575
262674
272773
282872
292971
303070
313070

Chance of precipitation in October

Any precipitation

Siuna gets around 219 mm of rain over 27.2 wet days in October, 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 92% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
192
292
391
491
591
691
791
891
990
1090
1190
1290
1390
1490
1590
1689
1789
1888
1987
2087
2186
2285
2385
2484
2584
2683
2783
2882
2981
3081
3180

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the oppressive band about 90% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
101927
201936
301936
401936
502935
602935
702935
802935
902935
1002935
1102935
1202935
1302935
1402935
1503925
1603925
1703925
1804915
1905905
2005905
2106895
2207885
2307894
2408884
2508884
2619864
2719873
28110863
29110863
30111853
31111862

Wind in October

Winds average 6 km/h in October.

Across October, daily wind ranges from about 5 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 54 min at the start of October to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over October. Sunrise moves from 5:32 AM to 5:37 AM, and sunset from 5:24 PM to 5:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:325:24
211.95:325:24
311.95:325:23
411.85:325:22
511.85:325:22
611.85:325:21
711.85:325:20
811.85:325:20
911.85:325:19
1011.85:335:18
1111.75:335:18
1211.75:335:17
1311.75:335:17
1411.75:335:16
1511.75:335:15
1611.75:345:15
1711.75:345:14
1811.75:345:14
1911.75:345:13
2011.65:345:13
2111.65:355:12
2211.65:355:12
2311.65:355:11
2411.65:355:11
2511.65:365:10
2611.65:365:10
2711.65:365:09
2811.55:365:09
2911.55:375:09
3011.55:375:08
3111.55:375:08

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.28 kWh/m².

For context, solar energy here swings from a low near 3.84 kWh/m² to a high of 5.67 kWh/m² in April across the year — October's 4.28 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.4Bright
94.4Bright
104.4Bright
114.4Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.2Bright
254.1Bright
264.1Bright
274.1Bright
284.1Bright
294.1Bright
304.0Bright
314.0Bright
Planning a trip in October

Hazard calendar for Siuna

In seasonPeak

In October, Siuna sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Siuna's rainy season runs May–November, when most of the year's rain falls.

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

Is October a good time to visit Siuna?

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

3.2
Sightseeing
7th-best month of the year
4.2
Beach & pool
8th-best month of the year

October is a weaker month for outdoor sightseeing in Siuna.

What to pack for Siuna in October

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

In October, Siuna sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. About 27 days see rain.

light clothesrain gear

UV index in Siuna in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October 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 Siuna peaks around April 11 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 11UV 13Dec 15UV 9
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun13Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov10Very high
Dec9Very high

Air quality in Siuna in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Siuna is worst in July — around 29 µg/m³ PM2.5 (moderate), about 5.1× the cleanest month (December, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1528 µg/m³Dec 206 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar10Good
Apr27Moderate
May28Moderate
Jun23Moderate
Jul29Moderate
Aug21Moderate
Sep14Moderate
Oct10Good
Nov7Good
Dec6Good
Location & terrain

Where is Siuna?

Siuna sits at 13.7°N, 84.8°W, 193 m above sea level, in Nicaragua. The nearest listed city is Río Blanco, 101 km away.

Río BlancoJalapaJinotegaMatagalpaPuerto CabezasBoacoCamoapaDulce Nombre de Culmí

Topography around Siuna

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

Within 3 km, the terrain around Siuna has only modest variations in elevation — a maximum elevation change of 241 m around an average of 191 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 770 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,645 m.

The land around Siuna is covered by trees (55%) and grassland (42%) within 3 km, trees (51%) and grassland (49%) within 16 km, and trees (65%) and grassland (33%) within 80 km.

3 km
241 m
16 km
770 m
80 km
1,645 m
treesgrasslandartificial surfaceswetland
October weather nearby: Río Blanco 101 km · Jalapa 147 km · Jinotega 151 km · Matagalpa 153 km · Puerto Cabezas 154 km · Boaco 170 km · Camoapa 170 km · Dulce Nombre de Culmí 172 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 Siuna (13.7332°, -84.7772°, elevation 193 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. 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).