Zastron weather in January

In January, Zastron sees average daytime highs of 29°C and overnight lows near 15°C, with 147 mm of rain across 14.5 wet days and about 13.7 hours of daylight. It is the 1st-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 48% of the time in January, and the air most often feels dry.

Daylight stretches from about 13 h 54 min at the start of January to 13 h 30 min by month's end. Set against the rest of the year, January is Zastron's 12th-clearest and 6th-windiest month. For the whole year in context, see Zastron's year-round climate.

Daytime high
29°
1st warmest
Overnight low
15°
12th coldest
Rainfall
147 mm
14.5 wet days
Daylight
13 h 48 min
5:28 AM – 7:14 PM
Cloud cover
44%
12th clearest
Wind
11 km/h
6th windiest
Solar energy
7.44 kWh/m²
Travel score
5.4
out of 10

Zastron is small agricultural town in the Free State province of South Africa.

Founded
1875

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 29°C through the month.

A typical January day in Zastron reaches about 29°C in the afternoon and slips back to 15°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 33°C. Set against its neighbours, January runs on par with December and about 1°C warmer than February.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12915
22915
32915
42915
52915
62915
72915
82915
92915
102915
112915
122915
132915
142915
152915
162915
172915
182915
192815
202815
212815
222815
232815
242815
252815
262815
272815
282815
292815
302815
312815

How January really feels in Zastron

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Zastron 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
Jan29° / 15°14714.513.75.4
Feb28° / 15°13213.813.15.8
Mar26° / 12°1151312.26.7
Apr22° / 728.611.37.2
May19° / 284.410.57.4
Jun16° / 173.110.16.5
Jul16° / 132.510.26.7
Aug19° / 233.610.97.7
Sep23° / 233.811.88.3
Oct25° / 10°728.812.77.4
Nov27° / 12°979.813.56.8
Dec28° / 14°1271213.96.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 25% of January, with mostly cloudy or overcast conditions the remaining 27%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17525
27525
37525
47525
57525
67525
77525
87525
97525
107426
117426
127426
137327
147327
157327
167327
177327
187228
197228
207228
217228
227228
237228
247228
257228
267228
277228
287228
297327
307426
317426

Chance of precipitation in January

Any precipitation

Zastron gets around 147 mm of rain over 14.5 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 46% and peaks near 49% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
140
241
342
442
543
644
744
844
944
1045
1145
1245
1346
1446
1546
1646
1747
1847
1947
2048
2148
2248
2348
2449
2549
2649
2748
2848
2947
3047
3147

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 56% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
165296
264306
364306
464306
563316
663316
762317
862317
962317
1061327
1160328
1260328
1359329
14583210
15583210
16563311
17553312
18553312
19533413
20533413
21513514
22513514
23503614
24503614
25503614
26503614
27503614
28503714
29503713
30503713
31503713

Wind in January

Winds average 11 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
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 54 min at the start of January to 13 h 30 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 5:17 AM to 5:41 AM, and sunset from 7:13 PM to 7:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:177:13
213.95:187:13
313.95:187:13
413.95:197:13
513.95:207:13
613.95:217:14
713.95:217:14
813.95:227:14
913.95:237:14
1013.85:247:14
1113.85:247:14
1213.85:257:14
1313.85:267:14
1413.85:277:14
1513.85:277:14
1613.85:287:14
1713.75:297:14
1813.75:307:13
1913.75:317:13
2013.75:327:13
2113.75:327:13
2213.75:337:12
2313.65:347:12
2413.65:357:12
2513.65:367:12
2613.65:377:11
2713.65:387:11
2813.55:387:10
2913.55:397:10
3013.55:407:10
3113.55:417:09

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 7.44 kWh/m².

For context, solar energy here swings from a low near 3.41 kWh/m² to a high of 7.76 kWh/m² in December across the year — January's 7.44 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.7Intense
27.7Intense
37.7Intense
47.7Intense
57.7Intense
67.6Intense
77.6Intense
87.6Intense
97.6Intense
107.6Intense
117.6Intense
127.6Intense
137.5Intense
147.5Intense
157.5Intense
167.5Intense
177.5Intense
187.5Intense
197.4Intense
207.4Intense
217.4Intense
227.3Intense
237.3Intense
247.3Intense
257.3Intense
267.2Intense
277.2Intense
287.2Intense
297.2Intense
307.2Intense
317.2Intense
Planning a trip in January

Hazard calendar for Zastron

In seasonPeak

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

Zastron'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 Zastron?

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

5.4
Sightseeing
12th-best month of the year
6.6
Beach & pool
4th-best month of the year

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

What to pack for Zastron in January

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

In January, Zastron sees daytime highs around 29°C and nights near 15°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Zastron 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 Zastron peaks around January 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 13UV 15Jun 23UV 4
UV index (midday)Level
Jan15Extreme
Feb13Extreme
Mar11Extreme
Apr7Very high
May6High
Jun4Moderate
Jul4Moderate
Aug6High
Sep8Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Zastron 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 Zastron is worst in June — around 19 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (December, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 2218 µg/m³Dec 216 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar10Good
Apr13Moderate
May16Moderate
Jun19Moderate
Jul18Moderate
Aug17Moderate
Sep16Moderate
Oct12Good
Nov7Good
Dec6Good
Location & terrain

Where is Zastron?

Zastron sits at 30.3°S, 27.1°E, 1,668 m above sea level, in South Africa. The nearest listed city is Mohale's Hoek, 41 km away.

Topography around Zastron

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

Within 3 km, the terrain around Zastron has significant variations in elevation — a maximum elevation change of 579 m around an average of 1,723 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 718 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,658 m.

The land around Zastron is covered by grassland (73%) within 3 km, grassland (87%) within 16 km, and grassland (86%) within 80 km.

3 km
579 m
16 km
718 m
80 km
1,658 m
treesshrubsgrasslandcroplandartificial surfaceswater
January weather nearby: Mohale's Hoek 41 km · Mafeteng 55 km · Aliwal North 56 km · Quthing 60 km · Burgersdorp 106 km · Maseru 116 km · Botshabelo 120 km · Mabote 121 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 Zastron (-30.3023°, 27.084°, elevation 1,668 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).