Siyabuswa weather in January

In January, Siyabuswa sees average daytime highs of 31°C and overnight lows near 20°C, with 91 mm of rain across 12.4 wet days and about 13.4 hours of daylight. It is the 1st-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 42% of the time in January, and the air most often feels humid.

Daylight stretches from about 13 h 30 min at the start of January to 13 h 12 min by month's end. Set against the rest of the year, January is Siyabuswa's 10th-clearest and 6th-windiest month. For the whole year in context, see Siyabuswa's year-round climate.

Daytime high
31°
1st warmest
Overnight low
20°
12th coldest
Rainfall
91 mm
12.4 wet days
Daylight
13 h 24 min
5:31 AM – 6:55 PM
Cloud cover
51%
10th clearest
Wind
8 km/h
6th windiest
Solar energy
6.66 kWh/m²
Travel score
4.3
out of 10

Siyabuswa is place in Mpumalanga, South Africa.

Density
2,970/km²
people per km²

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 31°C through the month.

A typical January day in Siyabuswa reaches about 31°C in the afternoon and slips back to 20°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 35°C. Set against its neighbours, January runs on par with December and on par with February.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13120
23120
33120
43120
53120
63120
73120
83120
93120
103120
113120
123120
133120
143120
153120
163120
173120
183120
193120
203120
213120
223120
233120
243120
253120
263120
273120
283120
293120
303120
313120

Siyabuswa weather by month

How January compares with the rest of the year at a glance. January is the 1st-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 20°9112.413.44.3
Feb31° / 20°669.212.94.6
Mar30° / 19°618.312.25.6
Apr28° / 15°324.711.47.5
May25° / 11°132.210.88.9
Jun23° / 40.810.59.2
Jul23° / 30.510.69.2
Aug26° / 10°4111.19.1
Sep29° / 14°12211.87.0
Oct30° / 17°477.212.65.5
Nov30° / 18°8211.213.24.8
Dec31° / 20°8913.213.54.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 22% of January, with mostly cloudy or overcast conditions the remaining 36%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26337
36337
46436
56436
66436
76535
86535
96535
106436
116436
126436
136337
146238
156238
166238
176139
186139
196139
206238
216238
226238
236238
246238
256436
266436
276535
286634
296733
306733
316733

Chance of precipitation in January

Any precipitation

Siyabuswa gets around 91 mm of rain over 12.4 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 40% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
141
241
341
441
541
641
741
841
940
1040
1140
1240
1340
1440
1540
1640
1740
1840
1940
2040
2139
2239
2339
2439
2539
2639
2738
2838
2938
3037
3137

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 46% of days. Sticky, muggy-or-worse air turns up on roughly 18% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
18284815
29284816
39284716
49284716
59284716
69284616
79284616
89294517
99294517
109294517
119294417
129294418
139294418
149294418
159284419
169284519
178284519
188274519
198274619
208264620
218264620
228264620
237264720
247264720
257264720
267264721
276264721
286274621
296284621
305284620
315294520

Wind in January

Winds average 8 km/h in January.

Across January, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 30 min at the start of January to 13 h 12 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 5:21 AM to 5:42 AM, and sunset from 6:53 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:216:53
213.55:216:53
313.55:226:54
413.55:236:54
513.55:236:54
613.55:246:54
713.55:256:55
813.55:256:55
913.55:266:55
1013.55:276:55
1113.55:276:55
1213.45:286:55
1313.45:296:55
1413.45:306:55
1513.45:306:55
1613.45:316:55
1713.45:326:55
1813.45:326:55
1913.45:336:55
2013.45:346:55
2113.35:356:55
2213.35:356:55
2313.35:366:55
2413.35:376:54
2513.35:386:54
2613.35:386:54
2713.25:396:54
2813.25:406:53
2913.25:406:53
3013.25:416:53
3113.25:426:52

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.66 kWh/m².

For context, solar energy here swings from a low near 3.98 kWh/m² to a high of 6.73 kWh/m² in December across the year — January's 6.66 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.8Intense
46.8Intense
56.8Intense
66.8Intense
76.8Intense
86.8Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.7Intense
146.6Intense
156.6Intense
166.6Intense
176.6Intense
186.6Intense
196.6Intense
206.6Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.6Intense
276.6Intense
286.6Intense
296.6Intense
306.6Intense
316.6Intense
Planning a trip in January

Hazard calendar for Siyabuswa

In seasonPeak

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

Siyabuswa'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 Siyabuswa?

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

4.3
Sightseeing
12th-best month of the year
6.4
Beach & pool
11th-best month of the year

January is a reasonable time to visit Siyabuswa for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Siyabuswa in January

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

In January, Siyabuswa sees daytime highs around 31°C and nights near 20°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

UV index in Siyabuswa 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 Siyabuswa peaks around January 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 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 13UV 14Jun 17UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr8Very high
May6High
Jun5High
Jul6High
Aug7Very high
Sep9Very high
Oct10Extreme
Nov11Extreme
Dec14Extreme

Air quality in Siyabuswa 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 Siyabuswa is worst in July — around 48 µg/m³ PM2.5 (poor), about 4.8× the cleanest month (December, 10 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodJul 1447 µg/m³Dec 2310 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar17Moderate
Apr27Moderate
May40Poor
Jun45Poor
Jul48Poor
Aug43Poor
Sep34Moderate
Oct20Moderate
Nov13Moderate
Dec10Good
Location & terrain

Where is Siyabuswa?

Siyabuswa sits at 25.1°S, 29.0°E, 935 m above sea level, in South Africa. The nearest listed city is Vaalbank, 20 km away.

Topography around Siyabuswa

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

Within 3 km, the terrain around Siyabuswa has only modest variations in elevation — a maximum elevation change of 84 m around an average of 925 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 457 m; within 80 km, large variations in elevation — a maximum elevation change of 1,139 m.

The land around Siyabuswa is covered by artificial surfaces (39%), shrubs (30%) and grassland (20%) within 3 km, shrubs (46%) and grassland (25%) within 16 km, and grassland (41%) and shrubs (32%) within 80 km.

3 km
84 m
16 km
457 m
80 km
1,139 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
January weather nearby: Vaalbank 20 km · Kwaggafontein 26 km · Somaroboro 33 km · Verena 41 km · Moloto South 56 km · Ekangala 69 km · Mookgophong 74 km · Modimolle 80 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 Siyabuswa (-25.1132°, 29.0445°, elevation 935 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).