Siuna weather in August

In August, Siuna sees average daytime highs of 29°C and overnight lows near 22°C, with 181 mm of rain across 28.4 wet days and about 12.5 hours of daylight. It is the 6th-warmest and 5th-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 8% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of August to 12 h 18 min by month's end. Set against the rest of the year, August is Siuna's 8th-clearest and 9th-windiest month. For the whole year in context, see Siuna's year-round climate.

Daytime high: 29°; 6th warmest
Overnight low: 22°; 9th coldest
Rainfall: 181 mm; 28.4 wet days
Daylight: 12 h 30 min; 5:29 AM – 5:57 PM
Cloud cover: 77%; 8th clearest
Wind: 6 km/h; 9th windiest
Solar energy: 4.81 kWh/m²
Travel score: 3.0; 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.

← July Siuna year-round climate September →Best places to visit in August

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

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

A typical August 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, August runs on par with July and on par with September.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	30	30	30	30	30	30	30	30
Avg low (°C)	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22

	Avg high (°C)	Avg low (°C)
1	29	22
2	29	22
3	29	22
4	29	22
5	29	22
6	29	22
7	29	22
8	29	22
9	29	22
10	29	22
11	29	22
12	29	22
13	29	22
14	29	22
15	29	22
16	29	22
17	29	22
18	29	22
19	29	22
20	29	22
21	29	22
22	29	22
23	29	22
24	30	22
25	30	22
26	30	22
27	30	22
28	30	22
29	30	22
30	30	22
31	30	22

How August really feels in Siuna

Once humidity and wind are folded in, August averages 31 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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

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

Siuna weather by month

How August compares with the rest of the year at a glance. August is the 6th-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	27° / 20°	45	16.3	11.3	5.7
Feb	28° / 20°	32	13.1	11.5	5.7
Mar	30° / 21°	29	11.1	11.9	5.2
Apr	31° / 22°	38	11	12.3	4.2
May	31° / 23°	167	21.4	12.6	3.2
Jun	30° / 23°	216	27.3	12.8	2.9
Jul	29° / 22°	199	28.8	12.7	3.1
Aug	29° / 22°	181	28.4	12.5	3.0
Sep	30° / 22°	200	27.5	12.1	2.9
Oct	29° / 22°	219	27.2	11.7	3.2
Nov	28° / 21°	124	20.5	11.4	4.5
Dec	27° / 21°	56	17.7	11.2	5.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 15% of August, with mostly cloudy or overcast conditions the remaining 77%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	25	25	25	25	25	23	23	23	23	22	22	23	23	23	23	22	22	23	23	23	23	23	22	23	23	23	23	23	23	22	23
Cloudier (%)	75	75	75	75	75	77	77	77	77	78	78	77	77	77	77	78	78	77	77	77	77	77	78	77	77	77	77	77	77	78	77

	Clearer (%)	Cloudier (%)
1	25	75
2	25	75
3	25	75
4	25	75
5	25	75
6	23	77
7	23	77
8	23	77
9	23	77
10	22	78
11	22	78
12	23	77
13	23	77
14	23	77
15	23	77
16	22	78
17	22	78
18	23	77
19	23	77
20	23	77
21	23	77
22	23	77
23	22	78
24	23	77
25	23	77
26	23	77
27	23	77
28	23	77
29	23	77
30	22	78
31	23	77

Chance of precipitation in August

Any precipitation

Siuna gets around 181 mm of rain over 28.4 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 92% and peaks near 93% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	90	90	90	91	91	91	91	92	92	92	92	93	93	93	93	93	93	93	93	93	93	93	92	92	92	92	91	91	91	91	91

	Rain chance (%)
1	90
2	90
3	90
4	91
5	91
6	91
7	91
8	92
9	92
10	92
11	92
12	93
13	93
14	93
15	93
16	93
17	93
18	93
19	93
20	93
21	93
22	93
23	92
24	92
25	92
26	92
27	91
28	91
29	91
30	91
31	91

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 96% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Oppressive (%)	96	96	96	95	95	95	95	95	95	96	96	96	96	97	97	97	98	98	98	98	98	97	97	97	96	96	96	96	95	95	95
Miserable (%)	4	4	4	5	5	5	5	5	5	4	4	4	4	3	3	3	2	2	2	2	2	3	3	3	4	4	4	4	5	5	5

	Oppressive (%)	Miserable (%)
1	96	4
2	96	4
3	96	4
4	95	5
5	95	5
6	95	5
7	95	5
8	95	5
9	95	5
10	96	4
11	96	4
12	96	4
13	96	4
14	97	3
15	97	3
16	97	3
17	98	2
18	98	2
19	98	2
20	98	2
21	98	2
22	97	3
23	97	3
24	97	3
25	96	4
26	96	4
27	96	4
28	96	4
29	95	5
30	95	5
31	95	5

Wind in August

Winds average 6 km/h in August.

Across August, 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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	7	7	7	7	7	7	7	7	7	7	7	7	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	5	5	5
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	7	calm
2	7	calm
3	7	calm
4	7	calm
5	7	calm
6	7	calm
7	7	calm
8	7	calm
9	7	calm
10	7	calm
11	7	calm
12	7	calm
13	6	calm
14	6	calm
15	6	calm
16	6	calm
17	6	calm
18	6	calm
19	6	calm
20	6	calm
21	6	calm
22	6	calm
23	6	calm
24	6	calm
25	6	calm
26	6	calm
27	6	calm
28	6	calm
29	5	calm
30	5	calm
31	5	calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 36 min at the start of August to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over August. Sunrise moves from 5:27 AM to 5:31 AM, and sunset from 6:04 PM to 5:48 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	12.6	12.6	12.6	12.6	12.6	12.6	12.6	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.3	12.3	12.3	12.3	12.3	12.3
Sunrise (AM)	5:27	5:27	5:27	5:27	5:28	5:28	5:28	5:28	5:28	5:28	5:29	5:29	5:29	5:29	5:29	5:29	5:30	5:30	5:30	5:30	5:30	5:30	5:30	5:30	5:30	5:30	5:30	5:31	5:31	5:31	5:31
Sunset (PM)	6:04	6:03	6:03	6:03	6:02	6:02	6:01	6:01	6:01	6:00	6:00	5:59	5:59	5:58	5:58	5:57	5:56	5:56	5:55	5:55	5:54	5:54	5:53	5:52	5:52	5:51	5:50	5:50	5:49	5:48	5:48

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.6	5:27	6:04
2	12.6	5:27	6:03
3	12.6	5:27	6:03
4	12.6	5:27	6:03
5	12.6	5:28	6:02
6	12.6	5:28	6:02
7	12.6	5:28	6:01
8	12.5	5:28	6:01
9	12.5	5:28	6:01
10	12.5	5:28	6:00
11	12.5	5:29	6:00
12	12.5	5:29	5:59
13	12.5	5:29	5:59
14	12.5	5:29	5:58
15	12.5	5:29	5:58
16	12.5	5:29	5:57
17	12.4	5:30	5:56
18	12.4	5:30	5:56
19	12.4	5:30	5:55
20	12.4	5:30	5:55
21	12.4	5:30	5:54
22	12.4	5:30	5:54
23	12.4	5:30	5:53
24	12.4	5:30	5:52
25	12.4	5:30	5:52
26	12.3	5:30	5:51
27	12.3	5:30	5:50
28	12.3	5:31	5:50
29	12.3	5:31	5:49
30	12.3	5:31	5:48
31	12.3	5:31	5:48

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.81 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 — August's 4.81 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.8	4.8	4.8	4.8	4.8	4.8	4.9	4.9	4.9	4.9	4.9	4.9	5.0	5.0	5.0	5.0
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.7	Bright
2	4.7	Bright
3	4.7	Bright
4	4.7	Bright
5	4.7	Bright
6	4.7	Bright
7	4.7	Bright
8	4.7	Bright
9	4.7	Bright
10	4.7	Bright
11	4.7	Bright
12	4.7	Bright
13	4.7	Bright
14	4.7	Bright
15	4.7	Bright
16	4.8	Bright
17	4.8	Bright
18	4.8	Bright
19	4.8	Bright
20	4.8	Bright
21	4.8	Bright
22	4.9	Bright
23	4.9	Bright
24	4.9	Bright
25	4.9	Bright
26	4.9	Bright
27	4.9	Bright
28	5.0	Bright
29	5.0	Bright
30	5.0	Bright
31	5.0	Bright

Planning a trip in August

Hazard calendar for Siuna

In seasonPeak

In August, 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 August a good time to visit Siuna?

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

3.0

Sightseeing

10th-best month of the year

4.0

Beach & pool

9th-best month of the year

August is a weaker month for outdoor sightseeing in Siuna.

What to pack for Siuna in August

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

In August, Siuna sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

UV index in Siuna in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	10	12	13	13	12	13	11	12	12	11	10	9
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	10	Extreme
Feb	12	Extreme
Mar	13	Extreme
Apr	13	Extreme
May	12	Extreme
Jun	13	Extreme
Jul	11	Extreme
Aug	12	Extreme
Sep	12	Extreme
Oct	11	Extreme
Nov	10	Very high
Dec	9	Very high

Air quality in Siuna in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August 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).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	6	7	10	27	28	23	29	21	14	10	7	6
Level	Good	Good	Good	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	6	Good
Feb	7	Good
Mar	10	Good
Apr	27	Moderate
May	28	Moderate
Jun	23	Moderate
Jul	29	Moderate
Aug	21	Moderate
Sep	14	Moderate
Oct	10	Good
Nov	7	Good
Dec	6	Good

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.

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

trees 55%

16 km

770 m

trees 51%

80 km

1,645 m

trees 65%

treesgrasslandartificial surfaceswetland

← July Siuna year-round climate September →Best places to visit in August

August 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

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).

	Avg high (°C)	Avg low (°C)
1	29	22
2	29	22
3	29	22
4	29	22
5	29	22
6	29	22
7	29	22
8	29	22
9	29	22
10	29	22
11	29	22
12	29	22
13	29	22
14	29	22
15	29	22
16	29	22
17	29	22
18	29	22
19	29	22
20	29	22
21	29	22
22	29	22
23	29	22
24	30	22
25	30	22
26	30	22
27	30	22
28	30	22
29	30	22
30	30	22
31	30	22

	Clearer (%)	Cloudier (%)
1	25	75
2	25	75
3	25	75
4	25	75
5	25	75
6	23	77
7	23	77
8	23	77
9	23	77
10	22	78
11	22	78
12	23	77
13	23	77
14	23	77
15	23	77
16	22	78
17	22	78
18	23	77
19	23	77
20	23	77
21	23	77
22	23	77
23	22	78
24	23	77
25	23	77
26	23	77
27	23	77
28	23	77
29	23	77
30	22	78
31	23	77

	Rain chance (%)
1	90
2	90
3	90
4	91
5	91
6	91
7	91
8	92
9	92
10	92
11	92
12	93
13	93
14	93
15	93
16	93
17	93
18	93
19	93
20	93
21	93
22	93
23	92
24	92
25	92
26	92
27	91
28	91
29	91
30	91
31	91

	Oppressive (%)	Miserable (%)
1	96	4
2	96	4
3	96	4
4	95	5
5	95	5
6	95	5
7	95	5
8	95	5
9	95	5
10	96	4
11	96	4
12	96	4
13	96	4
14	97	3
15	97	3
16	97	3
17	98	2
18	98	2
19	98	2
20	98	2
21	98	2
22	97	3
23	97	3
24	97	3
25	96	4
26	96	4
27	96	4
28	96	4
29	95	5
30	95	5
31	95	5

	Avg high (°C)	Avg low (°C)
1	29	22
2	29	22
3	29	22
4	29	22
5	29	22
6	29	22
7	29	22
8	29	22
9	29	22
10	29	22
11	29	22
12	29	22
13	29	22
14	29	22
15	29	22
16	29	22
17	29	22
18	29	22
19	29	22
20	29	22
21	29	22
22	29	22
23	29	22
24	30	22
25	30	22
26	30	22
27	30	22
28	30	22
29	30	22
30	30	22
31	30	22

	Clearer (%)	Cloudier (%)
1	25	75
2	25	75
3	25	75
4	25	75
5	25	75
6	23	77
7	23	77
8	23	77
9	23	77
10	22	78
11	22	78
12	23	77
13	23	77
14	23	77
15	23	77
16	22	78
17	22	78
18	23	77
19	23	77
20	23	77
21	23	77
22	23	77
23	22	78
24	23	77
25	23	77
26	23	77
27	23	77
28	23	77
29	23	77
30	22	78
31	23	77

	Rain chance (%)
1	90
2	90
3	90
4	91
5	91
6	91
7	91
8	92
9	92
10	92
11	92
12	93
13	93
14	93
15	93
16	93
17	93
18	93
19	93
20	93
21	93
22	93
23	92
24	92
25	92
26	92
27	91
28	91
29	91
30	91
31	91

	Oppressive (%)	Miserable (%)
1	96	4
2	96	4
3	96	4
4	95	5
5	95	5
6	95	5
7	95	5
8	95	5
9	95	5
10	96	4
11	96	4
12	96	4
13	96	4
14	97	3
15	97	3
16	97	3
17	98	2
18	98	2
19	98	2
20	98	2
21	98	2
22	97	3
23	97	3
24	97	3
25	96	4
26	96	4
27	96	4
28	96	4
29	95	5
30	95	5
31	95	5

	Avg high (°C)	Avg low (°C)
1	29	22
2	29	22
3	29	22
4	29	22
5	29	22
6	29	22
7	29	22
8	29	22
9	29	22
10	29	22
11	29	22
12	29	22
13	29	22
14	29	22
15	29	22
16	29	22
17	29	22
18	29	22
19	29	22
20	29	22
21	29	22
22	29	22
23	29	22
24	30	22
25	30	22
26	30	22
27	30	22
28	30	22
29	30	22
30	30	22
31	30	22

	Clearer (%)	Cloudier (%)
1	25	75
2	25	75
3	25	75
4	25	75
5	25	75
6	23	77
7	23	77
8	23	77
9	23	77
10	22	78
11	22	78
12	23	77
13	23	77
14	23	77
15	23	77
16	22	78
17	22	78
18	23	77
19	23	77
20	23	77
21	23	77
22	23	77
23	22	78
24	23	77
25	23	77
26	23	77
27	23	77
28	23	77
29	23	77
30	22	78
31	23	77

	Rain chance (%)
1	90
2	90
3	90
4	91
5	91
6	91
7	91
8	92
9	92
10	92
11	92
12	93
13	93
14	93
15	93
16	93
17	93
18	93
19	93
20	93
21	93
22	93
23	92
24	92
25	92
26	92
27	91
28	91
29	91
30	91
31	91

	Oppressive (%)	Miserable (%)
1	96	4
2	96	4
3	96	4
4	95	5
5	95	5
6	95	5
7	95	5
8	95	5
9	95	5
10	96	4
11	96	4
12	96	4
13	96	4
14	97	3
15	97	3
16	97	3
17	98	2
18	98	2
19	98	2
20	98	2
21	98	2
22	97	3
23	97	3
24	97	3
25	96	4
26	96	4
27	96	4
28	96	4
29	95	5
30	95	5
31	95	5