Santa Rosa weather in August

In August, Santa Rosa sees average daytime highs of 23°C and overnight lows near 13°C, with 89 mm of rain across 17.4 wet days and about 11.6 hours of daylight. It is the 6th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 39% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 11 h 30 min at the start of August to 11 h 48 min by month's end. Set against the rest of the year, August is Santa Rosa's 1st-clearest and 1st-windiest month. For the whole year in context, see Santa Rosa's year-round climate.

Daytime high
23°
6th warmest
Overnight low
13°
2nd coldest
Rainfall
89 mm
17.4 wet days
Daylight
11 h 36 min
6:15 AM – 5:53 PM
Cloud cover
50%
1st clearest
Wind
3 km/h
1st windiest
Solar energy
4.98 kWh/m²
Travel score
5.9
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical August day in Santa Rosa reaches about 23°C in the afternoon and slips back to 13°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 25°C. Set against its neighbours, August runs on par with July and on par with September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12313
22313
32313
42313
52313
62313
72313
82313
92313
102313
112313
122313
132313
142313
152313
162313
172313
182313
192313
202313
212313
222313
232313
242313
252414
262414
272414
282414
292414
302414
312414

Santa Rosa weather by month

How August compares with the rest of the year at a glance. August is the 6th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 16°48130.312.63.5
Feb23° / 16°44327.512.43.4
Mar23° / 16°3373012.13.6
Apr24° / 15°22027.611.83.9
May23° / 15°15325.411.54.4
Jun23° / 14°9819.711.45.3
Jul23° / 13°8216.411.45.9
Aug23° / 13°8917.411.65.9
Sep24° / 14°1342211.95.0
Oct24° / 15°23128.512.23.9
Nov24° / 16°31728.612.53.6
Dec23° / 16°43330.212.63.5

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 29% of August, with mostly cloudy or overcast conditions the remaining 32%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26931
36931
46832
56832
66931
76931
86931
96931
106931
116931
126931
136931
146931
156931
166931
177030
187030
197030
206931
216931
226832
236832
246733
256733
266634
276634
286535
296535
306535
316436

Chance of precipitation in August

Any precipitation

Santa Rosa gets around 89 mm of rain over 17.4 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 56% and peaks near 63% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
149
249
349
449
549
650
750
851
951
1052
1153
1254
1354
1455
1556
1656
1757
1857
1958
2058
2159
2260
2361
2461
2562
2662
2762
2862
2962
3063
3163

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 78% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
158114
258114
368014
468014
568014
677914
777914
877914
987814
1087814
1187814
1287814
1377914
1477914
1577815
1677815
1767915
1867915
1967816
2057916
2157916
2257817
2347917
2447818
2547818
2647818
2747719
2847719
2947620
3037621
3137522

Wind in August

Winds average 3 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 3 km/h on the calmest days to 3 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm
313calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 30 min at the start of August to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over August. Sunrise moves from 6:20 AM to 6:06 AM, and sunset from 5:51 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:205:51
211.56:205:51
311.56:205:51
411.56:195:51
511.56:195:52
611.66:195:52
711.66:185:52
811.66:185:52
911.66:185:52
1011.66:175:52
1111.66:175:52
1211.66:165:52
1311.66:165:53
1411.66:155:53
1511.66:155:53
1611.66:155:53
1711.66:145:53
1811.76:145:53
1911.76:135:53
2011.76:135:53
2111.76:125:53
2211.76:115:53
2311.76:115:53
2411.76:105:53
2511.76:105:53
2611.76:095:53
2711.76:095:53
2811.76:085:53
2911.86:075:53
3011.86:075:53
3111.86:065:53

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.98 kWh/m².

For context, solar energy here swings from a low near 4.11 kWh/m² to a high of 5.29 kWh/m² in September across the year — August's 4.98 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in August

Hazard calendar for Santa Rosa

In seasonPeak

None of Santa Rosa's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Santa Rosa's rainy season runs October–April, 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 Santa Rosa?

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

5.9
Sightseeing
1st-best month of the year
4.7
Beach & pool
1st-best month of the year

August is a reasonable time to visit Santa Rosa for sightseeing.

What to pack for Santa Rosa in August

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

In August, Santa Rosa sees daytime highs around 23°C and nights near 13°C. Pack rain gear. Worth having: light clothes and sun protection. About 17 days see rain.

rain gearlight clothessun protection

UV index in Santa Rosa in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Santa Rosa peaks around February 11 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 13 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 highExtremeVery highExtremeFeb 11UV 16Sep 13UV 9
UV index (midday)Level
Jan16Extreme
Feb16Extreme
Mar15Extreme
Apr13Extreme
May12Extreme
Jun10Very high
Jul10Very high
Aug11Extreme
Sep8Very high
Oct14Extreme
Nov14Extreme
Dec15Extreme

Air quality in Santa Rosa 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 Santa Rosa is worst in September — around 29 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (May, 9 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 929 µg/m³May 199 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar11Good
Apr10Good
May9Good
Jun9Good
Jul15Moderate
Aug29Moderate
Sep29Moderate
Oct13Moderate
Nov10Good
Dec9Good
Location & terrain

Where is Santa Rosa?

Santa Rosa sits at 10.9°S, 74.9°W, 524 m above sea level, in Peru. The nearest listed city is Satipo, 46 km away.

JaujaJunínAtalayaLa OroyaHuancayo

Topography around Santa Rosa

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

Within 3 km, the terrain around Santa Rosa has significant variations in elevation — a maximum elevation change of 565 m around an average of 617 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,346 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,742 m.

The land around Santa Rosa is covered by trees (63%) within 3 km, trees (91%) within 16 km, and trees (89%) within 80 km.

3 km
565 m
16 km
1,346 m
80 km
4,742 m
treesgrasslandartificial surfacesbare terrainwater
August weather nearby: Satipo 46 km · San Martín de Pangoa 71 km · Tarma 104 km · Jauja 116 km · Junín 124 km · Atalaya 125 km · La Oroya 129 km · Huancayo 133 km

Peru travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
220 V · 60 Hz
Prices
≈ 51% of US
price level, 2025
GDP per capita
$9,684
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
49%
of population, 2024
Homicide rate
8.6
per 100k, 2021
Road deaths
13.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 519
Religion
Catholic 76%Evangelical Christian 16%no religion 5%other religions 3%

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 Santa Rosa (-10.9191°, -74.885°, elevation 524 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).