Alexandra weather in January

In January, Alexandra sees average daytime highs of 27°C and overnight lows near 17°C, with 107 mm of rain across 15.1 wet days and about 13.5 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 36% 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 12 min by month's end. Set against the rest of the year, January is Alexandra's 11th-clearest and 8th-windiest month. For the whole year in context, see Alexandra's year-round climate.

Daytime high
27°
1st warmest
Overnight low
17°
12th coldest
Rainfall
107 mm
15.1 wet days
Daylight
13 h 30 min
5:33 AM – 7:01 PM
Cloud cover
54%
11th clearest
Wind
9 km/h
8th windiest
Solar energy
6.62 kWh/m²
Travel score
5.9
out of 10

Alexandra is township in Gauteng, South Africa.

Density
25,995/km²
people per km²
Founded
1912

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 27°C through the month.

A typical January day in Alexandra reaches about 27°C in the afternoon and slips back to 17°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 30°C. Set against its neighbours, January runs on par with December and on par with February.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12717
22717
32717
42717
52717
62717
72717
82717
92717
102717
112717
122717
132717
142717
152717
162717
172717
182717
192617
202617
212617
222617
232717
242717
252717
262717
272717
282717
292717
302717
312717

Alexandra weather by month

How January compares with the rest of the year at a glance. January is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 17°10715.113.55.9
Feb27° / 16°9712.412.96.2
Mar25° / 15°8011.112.26.9
Apr23° / 12°376.411.47.7
May21° / 142.610.78.4
Jun19° / 71.110.48.2
Jul19° / 20.610.58.3
Aug22° / 81.411.18.8
Sep25° / 11°192.811.88.6
Oct26° / 14°619.312.67.1
Nov26° / 15°8512.613.36.3
Dec26° / 16°11716.513.65.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% 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 42%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25842
35842
45842
55941
65941
75941
85842
95842
105941
115941
125842
135842
145743
155743
165743
175743
185743
195743
205743
215743
225743
235743
245842
255842
265842
275842
285941
296040
306040
316139

Chance of precipitation in January

Any precipitation

Alexandra gets around 107 mm of rain over 15.1 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 48% and peaks near 51% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
149
249
348
448
547
647
746
846
946
1046
1146
1247
1347
1448
1548
1649
1749
1850
1950
2050
2151
2251
2351
2451
2550
2650
2749
2849
2948
3048
3147

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 46% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11947340
21947340
31946340
42046340
52046340
62046340
72047330
82047330
92047330
102047340
111947340
121946340
131946350
141946360
151846360
161845370
171745370
181745380
191645380
201645390
211645390
221545390
231545390
241545391
251545391
261546391
271546391
281546381
291547381
301547371
311647371

Wind in January

Winds average 9 km/h in January.

Across January, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 36 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 24 minutes over January. Sunrise moves from 5:23 AM to 5:44 AM, and sunset from 6:59 PM to 6:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:236:59
213.65:236:59
313.65:247:00
413.65:247:00
513.65:257:00
613.65:267:00
713.65:267:00
813.65:277:01
913.55:287:01
1013.55:287:01
1113.55:297:01
1213.55:307:01
1313.55:317:01
1413.55:317:01
1513.55:327:01
1613.55:337:01
1713.55:347:01
1813.45:347:01
1913.45:357:01
2013.45:367:01
2113.45:377:00
2213.45:377:00
2313.45:387:00
2413.45:397:00
2513.35:407:00
2613.35:406:59
2713.35:416:59
2813.35:426:59
2913.35:436:59
3013.25:436:58
3113.25:446:58

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.62 kWh/m².

For context, solar energy here swings from a low near 3.92 kWh/m² to a high of 6.78 kWh/m² in December across the year — January's 6.62 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
186.5Intense
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 Alexandra

In seasonPeak

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

Alexandra'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 Alexandra?

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
5.9
Beach & pool
7th-best month of the year

January is a reasonable time to visit Alexandra for sightseeing.

What to pack for Alexandra in January

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

In January, Alexandra sees daytime highs around 27°C and nights near 17°C. Pack rain gear and sun protection. Worth having: light clothes. About 15 days see rain.

rain gearsun protectionlight clothes

UV index in Alexandra 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 Alexandra peaks around January 1 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 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 1UV 14Jun 18UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5Moderate
Jul6High
Aug7Very high
Sep9Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Alexandra 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 Alexandra is worst in June — around 283 µg/m³ PM2.5 (very unhealthy), about 5.7× the cleanest month (January, 50 µg/m³).

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

0306090120150180210240270300JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyVery unhealthyUnhealthyJun 19282 µg/m³Jan 1251 µg/m³
PM2.5 (µg/m³)Level
Jan50Poor
Feb72Unhealthy
Mar119Unhealthy
Apr177Very unhealthy
May261Very unhealthy
Jun283Very unhealthy
Jul275Very unhealthy
Aug213Very unhealthy
Sep156Very unhealthy
Oct99Unhealthy
Nov70Unhealthy
Dec55Poor
Location & terrain

Where is Alexandra?

Alexandra sits at 26.1°S, 28.1°E, 1,542 m above sea level, in South Africa. The nearest listed city is Edenvale, 7.0 km away.

Topography around Alexandra

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

Within 3 km, the terrain around Alexandra has only modest variations in elevation — a maximum elevation change of 163 m around an average of 1,566 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 890 m.

The land around Alexandra is covered by artificial surfaces (65%) and trees (22%) within 3 km, artificial surfaces (52%), trees (24%) and grassland (21%) within 16 km, and grassland (54%) and cropland (22%) within 80 km.

3 km
163 m
16 km
457 m
80 km
890 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Edenvale 7.0 km · Randburg 10 km · Johannesburg 12 km · Midrand 15 km · Ivory Park 16 km · Germiston 16 km · Thembisa 18 km · Alberton 18 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 Alexandra (-26.1053°, 28.0988°, elevation 1,542 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).