Calulo weather in January

In January, Calulo sees average daytime highs of 26°C and overnight lows near 18°C, with 117 mm of rain across 16.3 wet days and about 12.5 hours of daylight. It is the 10th-warmest and 7th-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 4% of the time in January, and the air most often feels humid.

Daylight stretches from about 12 h 36 min at the start of January to 12 h 24 min by month's end. Set against the rest of the year, January is Calulo's 9th-clearest and 3rd-windiest month. For the whole year in context, see Calulo's year-round climate.

Daytime high
26°
10th warmest
Overnight low
18°
7th coldest
Rainfall
117 mm
16.3 wet days
Daylight
12 h 30 min
5:54 AM – 6:25 PM
Cloud cover
81%
9th clearest
Wind
6 km/h
3rd windiest
Solar energy
5.66 kWh/m²
Travel score
5.4
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

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

A typical January day in Calulo reaches about 26°C in the afternoon and slips back to 18°C overnight — a 8°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, January runs on par with December and about 1°C cooler than February.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12618
22618
32618
42618
52618
62618
72618
82618
92618
102618
112618
122618
132618
142618
152618
162618
172618
182618
192618
202618
212618
222618
232618
242618
252618
262718
272718
282718
292718
302718
312718

Calulo weather by month

How January compares with the rest of the year at a glance. January is the 10th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 18°11716.312.55.4
Feb27° / 18°1201512.35.2
Mar27° / 18°24523.412.14.3
Apr28° / 19°23723.711.84.2
May28° / 18°37711.56.6
Jun28° / 15°20.411.48.6
Jul28° / 14°0011.58.7
Aug27° / 14°51.311.78.4
Sep27° / 16°4010.311.96.6
Oct26° / 18°14322.612.24.6
Nov26° / 18°25626.412.53.9
Dec25° / 18°17521.312.64.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 11% of January, with mostly cloudy or overcast conditions the remaining 84%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11684
21684
31684
41684
51684
61585
71585
81486
91585
101585
111585
121585
131486
141486
151486
161585
171684
181684
191684
201684
211684
221684
231684
241585
251585
261684
271684
281585
291585
301684
311684

Chance of precipitation in January

Any precipitation

Calulo gets around 117 mm of rain over 16.3 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 52% and peaks near 58% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
156
256
356
457
557
657
758
857
957
1056
1156
1255
1354
1453
1552
1652
1751
1850
1950
2049
2148
2248
2348
2448
2548
2648
2748
2849
2949
3049
3150

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the humid band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 43% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1055441
2055342
3055342
4055342
5055243
6055144
7055144
8055045
9054945
10064945
11064845
12074845
13084745
14084745
15094744
16094644
170104644
180104643
190114643
201114642
211114742
221114741
231114741
241114741
251114741
261114741
271114741
281114741
291114741
301114641
311114642

Wind in January

Winds average 6 km/h in January.

Across January, 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
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 12 h 36 min at the start of January to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over January. Sunrise moves from 5:46 AM to 6:01 AM, and sunset from 6:21 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:466:21
212.65:476:21
312.65:476:22
412.65:486:22
512.65:486:22
612.65:496:23
712.65:496:23
812.65:506:23
912.65:506:24
1012.65:516:24
1112.55:516:24
1212.55:526:25
1312.55:526:25
1412.55:536:25
1512.55:536:25
1612.55:546:25
1712.55:546:26
1812.55:556:26
1912.55:556:26
2012.55:566:26
2112.55:566:26
2212.55:576:26
2312.55:576:27
2412.55:586:27
2512.55:586:27
2612.55:596:27
2712.55:596:27
2812.55:596:27
2912.56:006:27
3012.46:006:27
3112.46:016:27

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.66 kWh/m².

For context, solar energy here swings from a low near 4.93 kWh/m² to a high of 5.81 kWh/m² in February across the year — January's 5.66 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.6Bright
145.6Bright
155.6Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in January

Hazard calendar for Calulo

In seasonPeak

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

Calulo'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 January a good time to visit Calulo?

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

5.4
Sightseeing
6th-best month of the year
5.2
Beach & pool
7th-best month of the year

January is a reasonable time to visit Calulo for sightseeing.

What to pack for Calulo in January

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

In January, Calulo sees daytime highs around 26°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 16 days see rain.

rain gearlight clothessun protection

UV index in Calulo in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 Calulo peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 16 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 14UV 15Aug 16UV 7
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar16Extreme
Apr13Extreme
May10Very high
Jun8Very high
Jul8Very high
Aug7Very high
Sep8Very high
Oct12Extreme
Nov13Extreme
Dec13Extreme

Air quality in Calulo in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Calulo is worst in July — around 171 µg/m³ PM2.5 (very unhealthy), about 13.1× the cleanest month (December, 13 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyVery unhealthyUnhealthyModerateJul 12166 µg/m³Dec 1413 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb15Moderate
Mar14Moderate
Apr14Moderate
May27Moderate
Jun146Unhealthy
Jul171Very unhealthy
Aug69Unhealthy
Sep67Unhealthy
Oct35Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Calulo?

Calulo sits at 10.0°S, 14.9°E, 995 m above sea level, in Angola. The nearest listed city is Dondo, 62 km away.

LucalaGolungo AltoGabelaCacuso

Topography around Calulo

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

Within 3 km, the terrain around Calulo has significant variations in elevation — a maximum elevation change of 254 m around an average of 987 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,080 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,972 m.

The land around Calulo is covered by grassland (61%) within 3 km, grassland (44%), trees (31%) and shrubs (23%) within 16 km, and grassland (56%) and trees (31%) within 80 km.

3 km
254 m
16 km
1,080 m
80 km
1,972 m
treesshrubsgrasslandcroplandartificial surfaceswater
January weather nearby: Dondo 62 km · Santa Clara 63 km · N'dalatando 78 km · Quibala 82 km · Lucala 90 km · Golungo Alto 97 km · Gabela 110 km · Cacuso 113 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 Calulo (-10.0006°, 14.8952°, elevation 995 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).