Aliwal North weather in May

In May, Aliwal North sees average daytime highs of 20°C and overnight lows near 5°C, with 26 mm of rain across 4 wet days and about 10.5 hours of daylight. It is the 9th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 18°C by the end. The sky is clear or mostly clear about 64% of the time in May, and the air most often feels dry.

Daylight stretches from about 10 h 48 min at the start of May to 10 h 12 min by month's end. Set against the rest of the year, May is Aliwal North's 5th-clearest and 11th-windiest month. For the whole year in context, see Aliwal North's year-round climate.

Daytime high
20°
9th warmest
Overnight low
4th coldest
Rainfall
26 mm
4 wet days
Daylight
10 h 30 min
6:56 AM – 5:23 PM
Cloud cover
32%
5th clearest
Wind
10 km/h
11th windiest
Solar energy
3.79 kWh/m²
Travel score
7.6
out of 10

Aliwal North is town in the Eastern Cape, South Africa.

Founded
1849

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 21°C in the first days to 18°C by the end.

A typical May day in Aliwal North reaches about 20°C in the afternoon and slips back to 5°C overnight — a 15°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 24°C. Set against its neighbours, May runs about 3°C cooler than April and about 3°C warmer than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1216
2216
3216
4216
5216
6216
7216
8215
9205
10205
11205
12205
13205
14205
15205
16205
17205
18204
19204
20194
21194
22194
23194
24194
25193
26183
27183
28183
29183
30183
31182

How May really feels in Aliwal North

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 3 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
3
wind chill below the day's low

The story in May is cold — wind chill drags the overnight "feels like" below the raw low.

Aliwal North weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 15°10412.413.85.1
Feb29° / 15°9911.913.15.5
Mar27° / 13°9110.512.26.8
Apr23° / 607.511.37.5
May20° / 26410.57.6
Jun17° / 183.210.16.6
Jul17° / 142.510.26.9
Aug19° / 213.410.97.8
Sep23° / 223.311.88.4
Oct26° / 10°567.212.87.6
Nov28° / 12°738.313.66.9
Dec29° / 14°919.613.95.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 14% of May, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17624
27723
37723
47723
57723
67723
77723
87723
97723
107723
117723
127822
137723
147723
157723
167723
177723
187723
197723
207723
217822
227822
237822
248020
258020
268020
278119
288218
298218
308317
318317

Chance of precipitation in May

Any precipitation

Aliwal North gets around 26 mm of rain over 4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 13% and peaks near 19% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
119
218
318
417
517
617
716
816
916
1015
1115
1215
1314
1414
1513
1613
1712
1812
1911
2011
2110
2210
2310
249
259
269
279
289
299
309
319

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in May

Winds average 10 km/h in May.

Across May, 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
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 10 h 48 min at the start of May to 10 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over May. Sunrise moves from 6:46 AM to 7:05 AM, and sunset from 5:35 PM to 5:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.86:465:35
210.86:465:34
310.86:475:33
410.76:485:32
510.76:485:31
610.76:495:31
710.76:505:30
810.66:505:29
910.66:515:28
1010.66:525:27
1110.66:525:26
1210.56:535:26
1310.56:545:25
1410.56:545:24
1510.56:555:24
1610.56:565:23
1710.46:565:22
1810.46:575:22
1910.46:585:21
2010.46:585:21
2110.36:595:20
2210.37:005:20
2310.37:005:19
2410.37:015:19
2510.37:025:18
2610.37:025:18
2710.27:035:17
2810.27:035:17
2910.27:045:17
3010.27:055:16
3110.27:055:16

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.79 kWh/m².

For context, solar energy here swings from a low near 3.34 kWh/m² to a high of 7.82 kWh/m² in December across the year — May's 3.79 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.1Bright
34.1Bright
44.1Bright
54.1Bright
64.0Bright
74.0Bright
84.0Moderate
94.0Moderate
103.9Moderate
113.9Moderate
123.9Moderate
133.9Moderate
143.8Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.7Moderate
193.7Moderate
203.7Moderate
213.7Moderate
223.7Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.5Moderate
303.5Moderate
313.5Moderate
Planning a trip in May

Hazard calendar for Aliwal North

In seasonPeak

None of Aliwal North's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Aliwal North'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 May a good time to visit Aliwal North?

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

7.6
Sightseeing
3rd-best month of the year
3.6
Beach & pool
9th-best month of the year

May is one of the better times to visit Aliwal North for general sightseeing.

What to pack for Aliwal North in May

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

In May, Aliwal North sees daytime highs around 20°C and nights near 5°C. Worth packing: a warm layer. About 4 days see rain.

a warm layer

UV index in Aliwal North in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Aliwal North peaks around January 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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 14UV 15Jun 22UV 4
UV index (midday)Level
Jan15Extreme
Feb13Extreme
Mar11Extreme
Apr7Very high
May5High
Jun4Moderate
Jul4Moderate
Aug6High
Sep8Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Aliwal North in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Aliwal North is worst in September — around 16 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (January, 5 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1515 µg/m³Jan 156 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb7Good
Mar8Good
Apr9Good
May11Good
Jun13Moderate
Jul12Moderate
Aug12Moderate
Sep16Moderate
Oct11Good
Nov6Good
Dec6Good
Location & terrain

Where is Aliwal North?

Aliwal North sits at 30.7°S, 26.7°E, 1,325 m above sea level, in South Africa. The nearest listed city is Burgersdorp, 50 km away.

Topography around Aliwal North

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

Within 3 km, the terrain around Aliwal North has only modest variations in elevation — a maximum elevation change of 112 m around an average of 1,329 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 549 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,497 m.

The land around Aliwal North is covered by grassland (57%) within 3 km, grassland (81%) within 16 km, and grassland (91%) within 80 km.

3 km
112 m
16 km
549 m
80 km
1,497 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Burgersdorp 50 km · Zastron 56 km · Mohale's Hoek 95 km · Quthing 100 km · Mafeteng 109 km · Lady Frere 123 km · Khowa 130 km · Cala 131 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 Aliwal North (-30.6937°, 26.7114°, elevation 1,325 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).