Climate and average weather in Rundu

In Rundu, the summers are sweltering, fairly dry, and mostly clear and the winters are warm and clear.

Best: mid May to mid August

Over the course of the year, the temperature in Rundu typically varies from 9°C to 35°C, and is rarely below 6°C or above 38°C. October is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit Rundu for warm-weather activities is from mid May to mid August.

Hottest
Oct
35°
Coldest
Jul
Wettest
Jan
165 mm
Driest
Jul
0 mm
Rain / yr
626 mm
86 wet days
Daylight
10.9–13.1 h
shortest–longest
Elevation
1,114 m
17.9°S
Clearest
Jun
8% cloud

Rundu is human settlement in Namibia.

Founded
1936

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

Rundu weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around mid May to mid August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Rundu, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 2.4 months, from September 9 to November 20, with daily high temperatures above 32°C. The hottest month of the year in Rundu is October, with an average high of 35°C and low of 20°C.

The cool season lasts 2.0 months, from May 30 to July 30, with daily high temperatures below 27°C. The coldest month of the year in Rundu is July, with an average low of 9°C and high of 25°C.

Days typically run about 13°C warmer than nights, with the widest day–night swing (around 17°C) in August.

10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3020
Feb3020
Mar2919
Apr2917
May2813
Jun2610
Jul259
Aug2912
Sep3317
Oct3520
Nov3320
Dec3120

How hot and cold Rundu really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, Rundu feels like about 35°C (around October 10). About 80 days a year carry some heat stress, peaking in October.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan30302020
Feb30302020
Mar30291919
Apr29291717
May28281313
Jun2626810
Jul252589
Aug29291212
Sep33331717
Oct35352020
Nov33332020
Dec31312020

Average hourly temperature in Rundu

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on October afternoons, near 35°C, and coldest before dawn in July, near C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Rundu weather by month

Every month at a glance. Click a month for its detailed page.

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

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Rundu gets about 626 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.

The wetter season lasts 5.2 months, from around Oct 31 to Apr 7, peaking in January at about 62% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 3.

January is the wettest month by volume, with 165 mm over about 19 wet days; July is the driest, with 0 mm.

0%10%20%30%40%50%60%70%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetJan 21 · 62%Jun 3 · 0%
Rain on a day (%)Rain days
Jan6019
Feb5816
Mar4715
Apr154
May10
Jun00
Jul00
Aug00
Sep20
Oct113
Nov3812
Dec5517

Monthly rainfall

Over a full year, Rundu collects about 626 mm of rain across 86 wet days — roughly 52 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 165 mm, while July is the driest at just 0 mm. The three wettest months alone bring about 67% of the year’s total.

0255075100125150175200JanFebMarAprMayJunJulAugSepOctNovDec1651321062010011465122
Rainfall (mm)Rain days
Jan16519
Feb13216
Mar10615
Apr204
May10
Jun00
Jul00
Aug00
Sep10
Oct143
Nov6512
Dec12217

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Rundu, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around April 7 and lasts for 6.7 months, ending around October 27. The clearest month is June, when the sky is clear, mostly clear, or partly cloudy 97% of the time on average.

The cloudier part of the year begins around October 28 and lasts for 5.3 months, ending around April 6. The cloudiest month is January, when it is overcast or mostly cloudy 69% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecJun 11 · 98%Dec 29 · 30%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan3169
Feb3862
Mar5149
Apr8020
May955
Jun973
Jul964
Aug964
Sep955
Oct8317
Nov5248
Dec3565

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around January 1, brings about 13 h 06 min of light; the shortest, around June 11, only 10 h 54 min — a swing of roughly 2 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.06:217:19
Feb12.66:377:14
Mar12.16:476:54
Apr11.66:536:29
May11.27:026:12
Jun10.97:136:09
Jul11.07:166:17
Aug11.47:036:27
Sep11.96:386:32
Oct12.46:146:38
Nov12.86:006:52
Dec13.16:057:09

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Rundu averages about 18 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 5 and 29 days.

The sunnier stretch runs 6.4 months, from around Apr 10 to Oct 21. The sunniest month is June, with roughly 28 sunny days (brilliant).

The greyest month is December, down near 6 sunny days — about 80% fewer than the June peak.

05101520253035JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJun 1529 daysDec 285 days
Sunny daysSky
Jan5Gloomy
Feb7Gloomy
Mar10Mixed
Apr19Bright
May27Brilliant
Jun28Brilliant
Jul28Brilliant
Aug28Brilliant
Sep26Brilliant
Oct20Bright
Nov10Mixed
Dec6Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Rundu, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 4.9 months, from around November 13 to April 11. The muggiest month is January, when the air feels humid, muggy or worse about 82% of the time.

The most comfortable stretch runs from around April 12 to November 12, and May is the most comfortable month — the air is dry or comfortable 99% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecMay 19 · 100%Jan 30 · 13%muggycomfortablehumiddryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan8102953
Feb5103055
Mar14142844
Apr55171810
May96310
Jun100000
Jul100000
Aug100000
Sep99100
Oct841060
Nov3924289
Dec14153636

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Rundu is typically calm, near 10 km/h, and varies little with the seasons.

The windier part of the year lasts 6.3 months, from around Apr 23 to Nov 1. The windiest month is September, averaging about 12 km/h (calm).

The calmer part of the year runs from around Nov 2 to Apr 22, with February the calmest month at about 8 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeSep 17 · 12 km/hFeb 7 · 8 km/h
Wind speed (km/h)Feels
Jan8calm
Feb8calm
Mar8calm
Apr10calm
May10calm
Jun11calm
Jul11calm
Aug11calm
Sep12calm
Oct11calm
Nov9calm
Dec8calm

Hazard calendar for Rundu

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

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

Best time to visit Rundu

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Rundu throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around early August, Rundu is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Rundu for general outdoor tourist activities is from early May to mid August, with a peak score in the third week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 21 · 9.5

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan3.9fair
Feb4.2fair
Mar4.8fair
Apr6.4good
May8.2ideal
Jun9.4ideal
Jul9.4ideal
Aug7.6ideal
Sep4.8fair
Oct3.3poor
Nov3.4poor
Dec3.6fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Rundu for hot-weather activities is from early April to early October, with a peak score in the third week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 16 · 9.4

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Rundu, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around October (highs near 35°C), the essentials are light clothes and sun protection. In the cold season around July (highs near 25°C), pack light clothes and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In October, Rundu sees daytime highs around 35°C and nights near 20°C. Pack light clothes and sun protection. About 3 days see rain.

UV index (midday) in Rundu by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

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

Average hourly UV index in Rundu

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in January the burn window is concentrated in the middle of the day: about 9 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan97
Feb8.56.5
Mar86.5
Apr7.55.5
May6.54
Jun63.5
Jul63.5
Aug74.5
Sep75
Oct86
Nov8.56.5
Dec8.56.5

Air quality in Rundu by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly 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
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Rundu is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Rundu banks about 4,781 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around October.

02,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan463
Feb408
Mar441
Apr390
May326
Jun227
Jul227
Aug330
Sep447
Oct539
Nov497
Dec485

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Rundu receives about 6.0 kWh/m² a day of solar energy on average — intense — with a clear seasonal swing between 4.9 and 7.3 kWh/m².

The brighter stretch of the year lasts 5.9 months, from around Aug 20 to Feb 16. The brightest month is October, averaging about 7.2 kWh/m² (intense).

The dimmest month is June, down near 5.0 kWh/m² — roughly 31% less than the October peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseOct 147.3 kWhJun 264.9 kWh
Solar energy (kWh/m²)Level
Jan6.2Intense
Feb6.1Intense
Mar5.7Bright
Apr5.7Bright
May5.3Bright
Jun5.0Bright
Jul5.1Bright
Aug5.9Bright
Sep6.8Intense
Oct7.3Intense
Nov6.9Intense
Dec6.5Intense

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
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).