San Rafael del Sur weather in August

In August, San Rafael del Sur sees average daytime highs of 32°C and overnight lows near 25°C, with 144 mm of rain across 17 wet days and about 12.4 hours of daylight. It is the 7th-warmest and 5th-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 14% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 30 min at the start of August to 12 h 12 min by month's end. Set against the rest of the year, August is San Rafael del Sur's 9th-clearest and 7th-windiest month. For the whole year in context, see San Rafael del Sur's year-round climate.

Daytime high
32°
7th warmest
Overnight low
25°
9th coldest
Rainfall
144 mm
17 wet days
Daylight
12 h 24 min
5:38 AM – 6:02 PM
Cloud cover
73%
9th clearest
Wind
13 km/h
7th windiest
Solar energy
5.88 kWh/m²
Travel score
3.3
out of 10

San Rafael del Sur is Town in Nicaragua, seat of the second admin division Municipio de San Rafael del Sur.

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical August day in San Rafael del Sur reaches about 32°C in the afternoon and slips back to 25°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, August runs on par with July and about 1°C warmer than September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13225
23225
33225
43225
53225
63225
73225
83225
93225
103225
113225
123225
133225
143225
153225
163225
173225
183225
193225
203225
213225
223225
233225
243225
253225
263225
273225
283225
293225
303225
313125

How August really feels in San Rafael del Sur

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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

San Rafael del Sur weather by month

How August compares with the rest of the year at a glance. August is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°10.311.45.1
Feb33° / 24°10.311.64.8
Mar34° / 25°20.711.94.2
Apr34° / 26°204.212.33.4
May33° / 26°19017.912.52.9
Jun31° / 25°2002012.73.1
Jul32° / 25°9311.912.63.7
Aug32° / 25°1441712.43.3
Sep31° / 25°25624.212.12.9
Oct30° / 24°31124.611.73.2
Nov31° / 24°769.111.54.5
Dec32° / 24°61.111.35.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 73%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33169
43070
53070
63169
73169
83070
92971
102971
112872
122872
132872
142872
152773
162674
172674
182674
192575
202476
212476
222476
232377
242377
252377
262377
272377
282476
292377
302377
312377

Chance of precipitation in August

Any precipitation

San Rafael del Sur gets around 144 mm of rain over 17 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 54% and peaks near 71% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
137
237
338
439
541
642
743
844
946
1047
1148
1250
1351
1452
1553
1655
1756
1857
1958
2060
2161
2262
2363
2464
2565
2666
2767
2868
2969
3070
3171

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 86% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
110846
210846
39847
49847
59847
68848
78848
87858
97858
106868
116877
126877
135887
145887
155896
165896
175896
185896
195887
205887
215878
225878
234879
2448610
2548610
2648511
2748511
2848412
2938512
3038413
3138413

Wind in August

Winds average 13 km/h in August.

Across August, daily wind ranges from about 11 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2012light breeze
2112light breeze
2212light breeze
2312calm
2412calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 30 min at the start of August to 12 h 12 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 5:36 AM to 5:39 AM, and sunset from 6:08 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:366:08
212.55:366:07
312.55:366:07
412.55:366:07
512.55:376:06
612.55:376:06
712.55:376:06
812.55:376:05
912.55:376:05
1012.55:376:04
1112.45:376:04
1212.45:386:04
1312.45:386:03
1412.45:386:03
1512.45:386:02
1612.45:386:02
1712.45:386:01
1812.45:386:01
1912.45:386:00
2012.45:386:00
2112.35:385:59
2212.35:385:59
2312.35:385:58
2412.35:385:57
2512.35:385:57
2612.35:385:56
2712.35:395:56
2812.35:395:55
2912.35:395:54
3012.35:395:54
3112.25:395:53

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.88 kWh/m².

For context, solar energy here swings from a low near 4.86 kWh/m² to a high of 6.96 kWh/m² in April across the year — August's 5.88 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
26.0Bright
36.0Bright
46.0Bright
56.0Bright
66.0Bright
76.0Bright
86.0Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.7Bright
315.7Bright
Planning a trip in August

Hazard calendar for San Rafael del Sur

In seasonPeak

In August, San Rafael del Sur sits inside its atlantic hurricane and monsoon season. The full year is below, with each hazard's peak months called out.

San Rafael del Sur sits in the Atlantic hurricane belt; the season peaks August–October.

San Rafael del Sur's monsoon runs May–June, when most of the year's rain falls.

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

Is August a good time to visit San Rafael del Sur?

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

3.3
Sightseeing
8th-best month of the year
5.3
Beach & pool
8th-best month of the year

August is a weaker month for outdoor sightseeing in San Rafael del Sur.

What to pack for San Rafael del Sur in August

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

In August, San Rafael del Sur sees daytime highs around 32°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

Sea temperature near San Rafael del Sur in August

The nearest coast averages about 29°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 21 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 San Rafael del Sur 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 San Rafael del Sur 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 San Rafael del Sur 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 San Rafael del Sur 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 San Rafael del Sur?

San Rafael del Sur sits at 11.8°N, 86.4°W, 126 m above sea level, in Nicaragua. The nearest listed city is El Crucero, 21 km away.

MasatepeCiudad SandinoManaguaMasaya

Topography around San Rafael del Sur

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Rafael del Sur.

Within 3 km, the terrain around San Rafael del Sur has only modest variations in elevation — a maximum elevation change of 152 m around an average of 119 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 693 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,305 m.

The land around San Rafael del Sur is covered by trees (48%) and grassland (40%) within 3 km, trees (54%) and grassland (29%) within 16 km, and water (46%) and trees (30%) within 80 km.

3 km
152 m
16 km
693 m
80 km
1,305 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: El Crucero 21 km · Diriamba 22 km · Jinotepe 26 km · San Marcos 26 km · Masatepe 33 km · Ciudad Sandino 36 km · Managua 38 km · Masaya 40 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 San Rafael del Sur (11.8485°, -86.4384°, elevation 126 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).