Bonao weather in August

In August, Bonao sees average daytime highs of 27°C and overnight lows near 19°C, with 125 mm of rain across 21.8 wet days and about 12.6 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 24% of the time in August, and the air most often feels muggy.

Daylight stretches from about 12 h 54 min at the start of August to 12 h 24 min by month's end. Set against the rest of the year, August is Bonao's 8th-clearest and 3rd-windiest month. For the whole year in context, see Bonao's year-round climate.

Daytime high
27°
1st warmest
Overnight low
19°
12th coldest
Rainfall
125 mm
21.8 wet days
Daylight
12 h 36 min
6:26 AM – 7:05 PM
Cloud cover
62%
8th clearest
Wind
6 km/h
3rd windiest
Solar energy
5.96 kWh/m²
Travel score
4.8
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical August day in Bonao reaches about 27°C in the afternoon and slips back to 19°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 28°C. Set against its neighbours, August runs on par with July and on par with September.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12719
22719
32719
42719
52719
62719
72719
82719
92719
102719
112719
122719
132719
142719
152719
162719
172719
182719
192719
202719
212719
222719
232719
242719
252719
262719
272719
282719
292719
302719
312719

Bonao weather by month

How August compares with the rest of the year at a glance. August 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
Jan23° / 15°7514.1116.5
Feb23° / 15°7012.711.46.5
Mar24° / 16°11515.411.96.3
Apr25° / 17°17019.512.45.5
May26° / 18°25323.212.94.7
Jun27° / 19°13219.913.15.0
Jul27° / 19°10521135.0
Aug27° / 19°12521.812.64.8
Sep27° / 19°14921.912.14.7
Oct26° / 19°13320.311.65.1
Nov25° / 17°11517.411.15.7
Dec24° / 16°7313.510.96.6

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 24% of August, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25248
35248
45248
55248
65149
75149
85248
95149
105149
115149
125149
135149
145149
154951
165050
174951
184852
194852
204654
214654
224654
234654
244555
254555
264555
274555
284456
294456
304456
314456

Chance of precipitation in August

Any precipitation

Bonao gets around 125 mm of rain over 21.8 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 71% and peaks near 73% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
171
271
371
471
570
670
769
869
969
1069
1169
1269
1369
1469
1569
1669
1770
1870
1970
2071
2171
2272
2372
2472
2572
2673
2773
2873
2973
3073
3172

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 91% of days. Sticky, muggy-or-worse air turns up on roughly 92% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
18902
28902
38902
48902
58902
68902
79892
89892
99892
109892
119892
129892
139901
149901
159901
169901
178911
188911
198911
208911
217921
227921
237921
247921
257921
267921
277921
286931
297921
307912
317912

Wind in August

Winds average 6 km/h in August.

Across August, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 54 min at the start of August to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over August. Sunrise moves from 6:22 AM to 6:30 AM, and sunset from 7:14 PM to 6:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:227:14
212.96:227:13
312.86:227:13
412.86:237:12
512.86:237:12
612.86:237:11
712.86:247:11
812.86:247:10
912.86:247:10
1012.76:257:09
1112.76:257:08
1212.76:257:08
1312.76:257:07
1412.76:267:07
1512.76:267:06
1612.66:267:05
1712.66:277:04
1812.66:277:04
1912.66:277:03
2012.66:277:02
2112.66:287:02
2212.56:287:01
2312.56:287:00
2412.56:286:59
2512.56:296:58
2612.56:296:58
2712.56:296:57
2812.46:296:56
2912.46:296:55
3012.46:306:54
3112.46:306:54

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.96 kWh/m².

For context, solar energy here swings from a low near 3.95 kWh/m² to a high of 6.16 kWh/m² in July across the year — August's 5.96 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.0Intense
146.0Intense
156.0Intense
166.0Bright
176.0Bright
185.9Bright
195.9Bright
205.9Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in August

Is August a good time to visit Bonao?

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

4.8
Sightseeing
10th-best month of the year
4.9
Beach & pool
9th-best month of the year

August is a reasonable time to visit Bonao for sightseeing.

What to pack for Bonao in August

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

In August, Bonao sees daytime highs around 27°C and nights near 19°C. Pack rain gear. Worth having: light clothes and sun protection. About 22 days see rain.

rain gearlight clothessun protection

Sea temperature near Bonao 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 67 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
Apr27Warm
May28Warm
Jun28Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Bonao in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bonao peaks around March 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 22UV 13Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in Bonao 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 Bonao is worst in June — around 31 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (February, 17 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2131 µg/m³Feb 1417 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb17Moderate
Mar18Moderate
Apr18Moderate
May23Moderate
Jun31Moderate
Jul29Moderate
Aug26Moderate
Sep25Moderate
Oct26Moderate
Nov21Moderate
Dec18Moderate
Location & terrain

Where is Bonao?

Bonao sits at 18.9°N, 70.4°W, 166 m above sea level, in Dominican Republic. The nearest listed city is Cotuí, 30 km away.

CotuíJarabacoaLa VegaConstanzaVilla AltagraciaSan Francisco de MacorísSan José de OcoaSalcedo

Topography around Bonao

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

Within 3 km, the terrain around Bonao has only modest variations in elevation — a maximum elevation change of 169 m around an average of 179 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,677 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,072 m.

The land around Bonao is covered by trees (50%) and artificial surfaces (30%) within 3 km, trees (80%) within 16 km, and trees (68%) within 80 km.

3 km
169 m
16 km
1,677 m
80 km
3,072 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Cotuí 30 km · Jarabacoa 31 km · La Vega 33 km · Constanza 35 km · Villa Altagracia 39 km · San Francisco de Macorís 43 km · San José de Ocoa 45 km · Salcedo 49 km

Dominican Republic travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
120 V · 60 Hz
Prices
≈ 39% of US
price level, 2025
GDP per capita
$11,059
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
45%
of population, 2024
Homicide rate
10.9
per 100k, 2023
Road deaths
64.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 503

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 Bonao (18.9415°, -70.4111°, elevation 166 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. 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).