Secunda weather in January

In January, Secunda sees average daytime highs of 25°C and overnight lows near 15°C, with 135 mm of rain across 16.2 wet days and about 13.5 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 33% of the time in January, and the air most often feels comfortable.

Daylight stretches from about 13 h 36 min at the start of January to 13 h 18 min by month's end. Set against the rest of the year, January is Secunda's 10th-clearest and 8th-windiest month. For the whole year in context, see Secunda's year-round climate.

Daytime high
25°
2nd warmest
Overnight low
15°
12th coldest
Rainfall
135 mm
16.2 wet days
Daylight
13 h 30 min
5:28 AM – 6:58 PM
Cloud cover
55%
10th clearest
Wind
10 km/h
8th windiest
Solar energy
6.6 kWh/m²
Travel score
5.9
out of 10

Secunda is city in South Africa.

Density
118/km²
people per km²
Founded
1974

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical January day in Secunda reaches about 25°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 29°C. Set against its neighbours, January runs on par with December and on par with February.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12615
22615
32615
42615
52515
62515
72515
82515
92515
102515
112515
122515
132515
142515
152515
162515
172515
182515
192515
202515
212515
222515
232515
242515
252515
262515
272515
282515
292515
302615
312615

Secunda weather by month

How January compares with the rest of the year at a glance. January is the 2nd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 15°13516.213.55.9
Feb25° / 15°9712.612.96.3
Mar24° / 14°921112.27.0
Apr22° / 11°426.511.47.6
May21° / 152.610.78.2
Jun18° / 7110.48.0
Jul18° / 50.710.58.1
Aug21° / 122.311.18.5
Sep24° / 10°233.811.88.5
Oct25° / 12°8911.712.66.9
Nov25° / 13°11215.213.36.0
Dec25° / 15°14717.913.65.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 23% of January, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35545
45644
55644
65644
75644
85743
95644
105644
115644
125644
135545
145545
155545
165545
175545
185545
195545
205545
215545
225644
235644
245644
255743
265743
275842
285842
295941
305941
316040

Chance of precipitation in January

Any precipitation

Secunda gets around 135 mm of rain over 16.2 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 53% and peaks near 55% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
155
254
353
452
552
651
750
850
950
1050
1150
1250
1351
1452
1552
1653
1753
1854
1954
2054
2155
2255
2355
2455
2555
2654
2754
2853
2952
3051
3151

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the comfortable band about 52% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1205525
2205426
3215326
4215326
5215227
6225127
7225127
8225127
9225127
10225127
11225127
12215227
13215128
14215128
15205228
16205129
17195229
18185230
19185230
20175231
21175231
22175231
23165331
24165232
25165232
26175132
27175132
28175231
29175231
30185230
31185329

Wind in January

Winds average 10 km/h in January.

Across January, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
310calm
410calm
510calm
610calm
710calm
810calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 36 min at the start of January to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over January. Sunrise moves from 5:17 AM to 5:39 AM, and sunset from 6:56 PM to 6:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:176:56
213.65:186:56
313.65:196:56
413.65:196:56
513.65:206:57
613.65:216:57
713.65:216:57
813.65:226:57
913.65:236:57
1013.65:236:57
1113.65:246:57
1213.55:256:58
1313.55:256:58
1413.55:266:58
1513.55:276:58
1613.55:286:58
1713.55:286:58
1813.55:296:57
1913.55:306:57
2013.45:316:57
2113.45:316:57
2213.45:326:57
2313.45:336:57
2413.45:346:56
2513.45:356:56
2613.35:356:56
2713.35:366:56
2813.35:376:55
2913.35:386:55
3013.35:386:55
3113.35:396:54

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.6 kWh/m².

For context, solar energy here swings from a low near 3.89 kWh/m² to a high of 6.71 kWh/m² in December across the year — January's 6.6 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.8Intense
46.8Intense
56.7Intense
66.7Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.6Intense
126.6Intense
136.6Intense
146.6Intense
156.6Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in January

Hazard calendar for Secunda

In seasonPeak

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

Secunda's rainy season runs October–March, 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 Secunda?

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

5.9
Sightseeing
11th-best month of the year
5.5
Beach & pool
6th-best month of the year

January is a reasonable time to visit Secunda for sightseeing.

What to pack for Secunda in January

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

In January, Secunda sees daytime highs around 25°C and nights near 15°C. Pack rain gear and sun protection. Worth having: light clothes. About 16 days see rain.

rain gearsun protectionlight clothes

UV index in Secunda in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Secunda peaks around January 14 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 14UV 14Jun 21UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr8Very high
May6High
Jun5High
Jul6High
Aug7Very high
Sep9Very high
Oct10Extreme
Nov11Extreme
Dec14Extreme

Air quality in Secunda 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 Secunda is worst in July — around 87 µg/m³ PM2.5 (unhealthy), about 3.6× the cleanest month (January, 24 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateJul 1286 µg/m³Jan 1024 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb31Moderate
Mar39Poor
Apr56Unhealthy
May73Unhealthy
Jun83Unhealthy
Jul87Unhealthy
Aug72Unhealthy
Sep55Poor
Oct35Moderate
Nov26Moderate
Dec25Moderate
Location & terrain

Where is Secunda?

Secunda sits at 26.6°S, 29.2°E, 1,592 m above sea level, in South Africa. The nearest listed city is Trichardt, 9.0 km away.

Topography around Secunda

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

Within 3 km, the terrain around Secunda has only modest variations in elevation — a maximum elevation change of 94 m around an average of 1,594 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 146 m; within 80 km, significant variations in elevation — a maximum elevation change of 451 m.

The land around Secunda is covered by grassland (46%) and artificial surfaces (25%) within 3 km, grassland (59%) and cropland (30%) within 16 km, and grassland (55%) and cropland (41%) within 80 km.

3 km
94 m
16 km
146 m
80 km
451 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Trichardt 9.0 km · eMbalenhle 10 km · Kinross 17 km · Lebohang 31 km · Bethal 31 km · Leslie 32 km · Kriel 35 km · Thubelihle 39 km

South Africa travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / M / N
230 V · 50 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$6,598
2025
Happiness
5.0 / 10
World Happiness, 2025
Safe drinking water
68%
of population, 2024
Homicide rate
43.7
per 100k, 2022
Road deaths
22.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very high
EF EPI 602
Religion
Christian 86%or other traditional African religions 5%nothing in particular 5%Muslim 2%

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 Secunda (-26.55°, 29.1667°, elevation 1,592 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).