Santa Clara weather in December

In December, Santa Clara sees average daytime highs of 26°C and overnight lows near 17°C, with 139 mm of rain across 19.9 wet days and about 12.6 hours of daylight. It is the 12th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 3% of the time in December, and the air most often feels humid.

Daylight stretches from about 12 h 36 min at the start of December to 12 h 36 min by month's end. Set against the rest of the year, December is Santa Clara's 11th-clearest and 9th-windiest month. For the whole year in context, see Santa Clara's year-round climate.

Daytime high
26°
12th warmest
Overnight low
17°
7th coldest
Rainfall
139 mm
19.9 wet days
Daylight
12 h 36 min
5:37 AM – 6:12 PM
Cloud cover
82%
11th clearest
Wind
5 km/h
9th windiest
Solar energy
5.34 kWh/m²
Travel score
4.9
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical December day in Santa Clara reaches about 26°C in the afternoon and slips back to 17°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 28°C. Set against its neighbours, December runs on par with November and on par with January.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12617
22617
32617
42617
52617
62617
72617
82617
92617
102617
112617
122617
132617
142617
152617
162617
172617
182617
192617
202617
212617
222617
232617
242617
252617
262617
272617
282617
292617
302617
312617

Santa Clara weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 17°11016.112.55.3
Feb28° / 17°9313.712.35.4
Mar28° / 18°1832112.14.5
Apr28° / 18°1041711.85.1
May29° / 16°122.311.56.9
Jun29° / 14°00.111.47.7
Jul29° / 13°0011.57.3
Aug30° / 14°40.911.76.4
Sep30° / 16°6011.911.95.0
Oct28° / 17°1712612.23.8
Nov27° / 17°1912512.54.0
Dec26° / 17°13919.912.64.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 8% of December, with mostly cloudy or overcast conditions the remaining 89%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1892
2892
3892
4892
5892
6991
7991
8991
9991
10991
11991
12991
131090
141090
151189
161189
171189
181189
191189
201189
211288
221288
231387
241387
251486
261387
271486
281486
291486
301486
311387

Chance of precipitation in December

Any precipitation

Santa Clara gets around 139 mm of rain over 19.9 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 65% and peaks near 78% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
178
277
377
476
576
675
774
873
972
1071
1170
1269
1368
1467
1565
1664
1763
1862
1961
2060
2159
2258
2357
2456
2555
2655
2755
2854
2954
3055
3155

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 71% of days. Sticky, muggy-or-worse air turns up on roughly 20% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1047125
2047125
3047125
4047224
5057124
6057124
7057223
8067123
9067222
10077122
11077221
12087121
13087220
14097120
15097219
160107119
170107119
180107119
191107019
201107118
211117018
221117018
231117018
241117018
251117018
261127017
271127017
281127017
291127017
301127017
311127017

Wind in December

Winds average 5 km/h in December.

Across December, daily wind ranges from about 5 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
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
286calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 36 min at the start of December to 12 h 36 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 5:31 AM to 5:44 AM, and sunset from 6:05 PM to 6:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:316:05
212.65:326:05
312.65:326:06
412.65:326:06
512.65:336:07
612.65:336:07
712.65:336:08
812.65:346:08
912.65:346:09
1012.65:346:09
1112.65:356:10
1212.65:356:10
1312.65:356:11
1412.65:366:11
1512.65:366:12
1612.65:376:12
1712.65:376:13
1812.65:386:13
1912.65:386:14
2012.65:386:14
2112.65:396:15
2212.65:396:15
2312.65:406:16
2412.65:406:16
2512.65:416:17
2612.65:416:17
2712.65:426:17
2812.65:426:18
2912.65:436:18
3012.65:436:19
3112.65:446:19

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.34 kWh/m².

For context, solar energy here swings from a low near 5.29 kWh/m² to a high of 5.85 kWh/m² in September across the year — December's 5.34 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in December

Hazard calendar for Santa Clara

In seasonPeak

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

Santa Clara'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 December a good time to visit Santa Clara?

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

4.9
Sightseeing
9th-best month of the year
4.7
Beach & pool
10th-best month of the year

December is a reasonable time to visit Santa Clara for sightseeing.

What to pack for Santa Clara in December

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

In December, Santa Clara sees daytime highs around 26°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 20 days see rain.

rain gearlight clothessun protection

UV index in Santa Clara in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 Santa Clara peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 11 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 highExtremeMar 13UV 15Aug 11UV 9
UV index (midday)Level
Jan16Extreme
Feb15Extreme
Mar16Extreme
Apr14Extreme
May10Extreme
Jun9Very high
Jul9Very high
Aug9Very high
Sep11Extreme
Oct13Extreme
Nov12Extreme
Dec13Extreme

Air quality in Santa Clara 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 Clara is worst in July — around 184 µg/m³ PM2.5 (very unhealthy), about 22.1× the cleanest month (December, 8 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyVery unhealthyUnhealthyModerateGoodJul 18175 µg/m³Dec 148 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar10Good
Apr9Good
May24Moderate
Jun96Unhealthy
Jul184Very unhealthy
Aug120Unhealthy
Sep40Poor
Oct16Moderate
Nov9Good
Dec8Good
Location & terrain

Where is Santa Clara?

Santa Clara sits at 10.2°S, 15.4°E, 1,030 m above sea level, in Angola. The nearest listed city is Calulo, 63 km away.

BailundoCacusoLucalaN'dalatandoCangandala

Topography around Santa Clara

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

Within 3 km, the terrain around Santa Clara has only modest variations in elevation — a maximum elevation change of 217 m around an average of 1,048 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 571 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,623 m.

The land around Santa Clara is covered by grassland (49%), trees (30%) and shrubs (20%) within 3 km, trees (52%) and grassland (31%) within 16 km, and trees (45%) and grassland (41%) within 80 km.

3 km
217 m
16 km
571 m
80 km
1,623 m
treesshrubsgrasslandcroplandwater
December weather nearby: Calulo 63 km · Mussende 73 km · Quibala 78 km · Bailundo 92 km · Cacuso 92 km · Lucala 104 km · N'dalatando 115 km · Cangandala 118 km

Angola travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
220 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$3,129
2025
Happiness
3.8 / 10
World Happiness, 2017
Homicide rate
4.1
per 100k, 2016
Road deaths
26.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 413
Religion
Roman Catholic 41%Protestant 38%none 12%other 9%

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 Clara (-10.1916°, 15.4341°, elevation 1,030 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).