Rundu weather in May

In May, Rundu sees average daytime highs of 28°C and overnight lows near 13°C, with 1 mm of rain across 0.1 wet days and about 11.2 hours of daylight. It is the 10th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 29°C in the first days to 27°C by the end. The sky is clear or mostly clear about 86% of the time in May, and the air most often feels dry.

Daylight stretches from about 11 h 24 min at the start of May to 11 hours by month's end. Set against the rest of the year, May is Rundu's 5th-clearest and 6th-windiest month. For the whole year in context, see Rundu's year-round climate.

Daytime high
28°
10th warmest
Overnight low
13°
4th coldest
Rainfall
1 mm
0.1 wet days
Daylight
11 h 12 min
7:02 AM – 6:12 PM
Cloud cover
16%
5th clearest
Wind
10 km/h
6th windiest
Solar energy
5.33 kWh/m²
Travel score
8.3
out of 10

Rundu is human settlement in Namibia.

Founded
1936

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 29°C in the first days to 27°C by the end.

A typical May day in Rundu reaches about 28°C in the afternoon and slips back to 13°C overnight — a 15°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°C. Set against its neighbours, May runs about 1°C cooler than April and about 3°C warmer than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12915
22915
32915
42915
52915
62915
72914
82914
92914
102914
112914
122814
132814
142813
152813
162813
172813
182813
192813
202813
212712
222712
232712
242712
252712
262712
272712
282711
292711
302711
312711

How May really feels in Rundu

Once humidity and wind are folded in, May 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

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

Rundu weather by month

How May compares with the rest of the year at a glance. May is the 10th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 20°16518.6133.9
Feb30° / 20°13216.312.64.2
Mar29° / 19°10614.612.14.7
Apr29° / 17°204.211.66.4
May28° / 13°10.111.28.3
Jun26° / 10°0010.99.4
Jul25° / 00119.4
Aug29° / 12°0011.47.6
Sep33° / 17°10.411.94.8
Oct35° / 20°143.412.43.3
Nov33° / 20°6511.712.83.5
Dec31° / 20°1221713.13.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 86% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 9% of May, with mostly cloudy or overcast conditions the remaining 5%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1928
2928
3928
4937
5937
6946
7946
8946
9946
10946
11946
12955
13964
14964
15964
16964
17964
18964
19964
20964
21964
22964
23964
24964
25973
26973
27973
28973
29973
30973
31973

Chance of precipitation in May

Any precipitation

Rundu gets around 1 mm of rain over 0.1 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 1% and peaks near 2% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
12
22
32
41
51
61
71
80
90
100
110
120
130
140
150
160
170
181
191
201
211
221
231
241
251
261
270
280
290
300
310

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 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
185951
286851
388840
490730
591630
692620
793520
894510
995410
1095410
1197300
1297300
1398200
1498200
1598200
1699100
1799100
1899100
1999100
2099100
2199100
2299100
2399100
2499100
2599100
2699100
2799100
2899100
2999100
3099100
3199100

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 10 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
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 24 min at the start of May to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over May. Sunrise moves from 6:57 AM to 7:08 AM, and sunset from 6:19 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:576:19
211.36:586:18
311.36:586:18
411.36:586:17
511.36:596:17
611.36:596:16
711.36:596:16
811.37:006:15
911.27:006:15
1011.27:006:14
1111.27:016:14
1211.27:016:13
1311.27:016:13
1411.27:026:13
1511.27:026:12
1611.27:026:12
1711.17:036:12
1811.17:036:11
1911.17:036:11
2011.17:046:11
2111.17:046:10
2211.17:056:10
2311.17:056:10
2411.17:056:10
2511.17:066:10
2611.17:066:09
2711.07:066:09
2811.07:076:09
2911.07:076:09
3011.07:086:09
3111.07:086:09

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.33 kWh/m².

For context, solar energy here swings from a low near 4.95 kWh/m² to a high of 7.25 kWh/m² in October across the year — May's 5.33 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in May

Hazard calendar for Rundu

In seasonPeak

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

Rundu's rainy season runs December–March, 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 Rundu?

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

8.3
Sightseeing
3rd-best month of the year
9.1
Beach & pool
2nd-best month of the year

May is one of the better times to visit Rundu for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Rundu in May

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

In May, Rundu sees daytime highs around 28°C and nights near 13°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Rundu in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rundu peaks around January 16 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 16UV 16Jul 11UV 7
UV index (midday)Level
Jan16Extreme
Feb14Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun8Very high
Jul7Very high
Aug9Very high
Sep10Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Rundu 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 Rundu is worst in September — around 49 µg/m³ PM2.5 (poor), about 13.6× the cleanest month (December, 4 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodSep 1546 µg/m³Dec 184 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb6Good
Mar6Good
Apr5Good
May7Good
Jun9Good
Jul16Moderate
Aug30Moderate
Sep49Poor
Oct23Moderate
Nov6Good
Dec4Good
Location & terrain

Where is Rundu?

Rundu sits at 17.9°S, 19.8°E, 1,114 m above sea level, in Namibia. The nearest listed city is Ndiyona, 99 km away.

NdiyonaGrootfonteinTsumebOndangwaHelao NafidiOngwediva

Topography around Rundu

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

Within 3 km, the terrain around Rundu has only modest variations in elevation — a maximum elevation change of 63 m around an average of 1,094 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 80 m; within 80 km, only modest variations in elevation — a maximum elevation change of 157 m.

The land around Rundu is covered by artificial surfaces (47%) within 3 km, shrubs (52%) and grassland (29%) within 16 km, and shrubs (87%) within 80 km.

3 km
63 m
16 km
80 m
80 km
157 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Ndiyona 99 km · Grootfontein 255 km · Tsumeb 263 km · Ondangwa 401 km · Helao Nafidi 415 km · Senanga 422 km · Ongwediva 424 km · Menongue 425 km

Namibia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type D / M
220 V · 50 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$4,876
2025
Happiness
4.8 / 10
World Happiness, 2025
Homicide rate
11.2
per 100k, 2021
Road deaths
34.8
per 100k/yr, 2019
Income group
Lower middle
World Bank
Religion
Christian 98%unaffiliated 2%other 1%

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 Rundu (-17.918°, 19.7731°, elevation 1,114 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).