Santa Ana weather in December

In December, Santa Ana sees average daytime highs of 21°C and overnight lows near 14°C, with 325 mm of rain across 30.3 wet days and about 12.7 hours of daylight. It is the 7th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 0% of the time in December, and the air most often feels comfortable.

Daylight stretches from about 12 h 42 min at the start of December to 12 h 42 min by month's end. Set against the rest of the year, December is Santa Ana's 10th-clearest and 9th-windiest month. For the whole year in context, see Santa Ana's year-round climate.

Daytime high
21°
7th warmest
Overnight low
14°
12th coldest
Rainfall
325 mm
30.3 wet days
Daylight
12 h 48 min
5:24 AM – 6:10 PM
Cloud cover
92%
10th clearest
Wind
3 km/h
9th windiest
Solar energy
4.33 kWh/m²
Travel score
3.3
out of 10

Santa Ana is human settlement in Peru.

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 21°C through the month.

A typical December day in Santa Ana reaches about 21°C in the afternoon and slips back to 14°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 23°C. Set against its neighbours, December runs on par with November and on par with January.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12114
22114
32114
42114
52114
62114
72114
82114
92114
102114
112114
122114
132114
142114
152114
162114
172114
182114
192114
202114
212114
222114
232114
242114
252114
262114
272114
282114
292114
302114
312114

Santa Ana weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan21° / 14°35030.612.73.2
Feb21° / 14°32727.112.43.3
Mar21° / 13°25030.212.13.3
Apr21° / 12°16127.711.73.7
May21° / 11°9822.511.44.6
Jun21° / 10°511311.36.0
Jul20° / 4311.111.36.3
Aug21° / 5512.711.66.2
Sep22° / 11°7617.611.95.4
Oct22° / 12°15326.612.34.0
Nov21° / 13°23628.612.63.4
Dec21° / 14°32530.312.73.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 2% of December, with mostly cloudy or overcast conditions the remaining 98%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1199
2199
3298
4298
5298
6298
7298
8298
9298
10298
11397
12397
13397
14397
15397
16397
17397
18397
19397
20298
21298
22298
23298
24298
25298
26199
27199
28199
29199
30199
31199

Chance of precipitation in December

Any precipitation

Santa Ana gets around 325 mm of rain over 30.3 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 98% and peaks near 98% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
198
298
398
498
598
698
798
898
998
1098
1198
1298
1398
1498
1598
1698
1798
1898
1998
2098
2198
2298
2398
2498
2598
2698
2798
2898
2998
3098
3198

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the comfortable band about 92% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
11909
21909
31918
41918
51918
61927
71927
81927
91927
101927
111927
121927
131927
141927
151927
161918
171927
181927
191927
201927
212917
222917
232917
241927
251927
261927
271927
281927
291927
301927
311927

Wind in December

Winds average 3 km/h in December.

Across December, 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 December

DaylightNight

Daylight runs from about 12 h 42 min at the start of December to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 5:20 AM to 5:32 AM, and sunset from 6:02 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:206:02
212.75:206:02
312.75:206:03
412.75:206:03
512.75:216:04
612.75:216:04
712.75:216:05
812.75:216:05
912.75:226:06
1012.75:226:07
1112.75:226:07
1212.75:236:08
1312.75:236:08
1412.75:246:09
1512.85:246:09
1612.85:246:10
1712.85:256:10
1812.85:256:11
1912.85:266:11
2012.85:266:12
2112.85:276:12
2212.85:276:13
2312.85:286:13
2412.85:286:13
2512.85:296:14
2612.85:296:14
2712.85:306:15
2812.85:306:15
2912.85:316:16
3012.75:316:16
3112.75:326:16

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.33 kWh/m².

For context, solar energy here swings from a low near 4.07 kWh/m² to a high of 5.27 kWh/m² in September across the year — December's 4.33 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.4Bright
34.4Bright
44.4Bright
54.4Bright
64.4Bright
74.4Bright
84.4Bright
94.4Bright
104.3Bright
114.3Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in December

Hazard calendar for Santa Ana

In seasonPeak

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

Santa Ana's rainy season runs November–April, when most of the year's rain falls.

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

Is December a good time to visit Santa Ana?

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

3.3
Sightseeing
9th-best month of the year
2.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Santa Ana.

What to pack for Santa Ana in December

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

In December, Santa Ana sees daytime highs around 21°C and nights near 14°C. Pack rain gear. About 30 days see rain.

rain gear

UV index in Santa Ana in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 15 (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 Ana peaks around February 8 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 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 highExtremeFeb 8UV 17Jun 23UV 9
UV index (midday)Level
Jan17Extreme
Feb17Extreme
Mar16Extreme
Apr14Extreme
May12Extreme
Jun9Very high
Jul9Very high
Aug12Extreme
Sep11Extreme
Oct15Extreme
Nov15Extreme
Dec15Extreme

Air quality in Santa Ana in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Santa Ana is worst in September — around 21 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1320 µg/m³Dec 227 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar9Good
Apr8Good
May7Good
Jun7Good
Jul10Good
Aug17Moderate
Sep21Moderate
Oct10Good
Nov9Good
Dec7Good
Location & terrain

Where is Santa Ana?

Santa Ana sits at 12.9°S, 72.7°W, 1,646 m above sea level, in Peru. The nearest listed city is Quillabamba, 3.0 km away.

Andahuaylas

Topography around Santa Ana

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

Within 3 km, the terrain around Santa Ana has very significant variations in elevation — a maximum elevation change of 1,229 m around an average of 1,341 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 3,254 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,792 m.

The land around Santa Ana is covered by trees (53%) and grassland (28%) within 3 km, trees (86%) within 16 km, and trees (70%) and grassland (26%) within 80 km.

3 km
1,229 m
16 km
3,254 m
80 km
5,792 m
treesshrubsgrasslandartificial surfacesbare terrainsnow and icewater
December weather nearby: Quillabamba 3.0 km · Machu Picchu 38 km · Aguas Calientes 38 km · Abancay 87 km · Santiago 108 km · Wanchaq 109 km · Cusco 110 km · Andahuaylas 114 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 Ana (-12.8667°, -72.7167°, elevation 1,646 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).