Johannesburg vs Windhoek: which is sunnier?
🇿🇦 South Africa vs 🇳🇦 Namibia · 1,165 km apart · long-term climate normals (NASA POWER, 2001–2020)
Windhoek is the sunnier overall: about 3,829 hours of sunshine a year to Johannesburg's 3,287. Windhoek has the higher Sunshine Score in 9 of 12 months; the other 3 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Johannesburg | Windhoek | |
|---|---|---|
| Sunshine hours / year | 3,287 | 3,829 |
| Sunniest month | August (97/100) | June (100/100) |
| Nov–Feb average score | 79/100 | 86/100 |
| Jun–Aug average score | 81/100 | 100/100 |
| Rain / year | 642 mm | 488 mm |
| Peak midday UV | 12 (extreme) | 14 (extreme) |
Johannesburg vs Windhoek month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Johannesburg | Windhoek | Johannesburg | Windhoek | Johannesburg | Windhoek | |
| January | 76 | 82 | 27° | 31° | 122 | 96 |
| February | 84 | 82 | 27° | 30° | 82 | 96 |
| March | 85 | 84 | 26° | 28° | 73 | 90 |
| April | 91 | 89 | 23° | 26° | 43 | 60 |
| May | 96 | 99 | 20° | 23° | 16 | 6 |
| June | 73 | 100 | 17° | 20° | 7 | 2 |
| July | 74 | 100 | 17° | 20° | 3 | 1 |
| August | 97 | 100 | 21° | 24° | 7 | 1 |
| September | 96 | 99 | 25° | 29° | 16 | 5 |
| October | 88 | 96 | 27° | 31° | 57 | 24 |
| November | 82 | 92 | 27° | 32° | 89 | 43 |
| December | 75 | 88 | 27° | 32° | 127 | 64 |
The sunnier month by month: Jan Windhoek · Feb even · Mar even · Apr even · May Windhoek · Jun Windhoek · Jul Windhoek · Aug Windhoek · Sep Windhoek · Oct Windhoek · Nov Windhoek · Dec Windhoek.
When to pick which
- November–February: Windhoek (average score 86/100 vs 79). Windhoek is the warmer, around 31°C daytime highs vs 27°C.
- March–May: too close to call — Johannesburg averages 91/100, Windhoek 91/100. Windhoek is the warmer, around 26°C daytime highs vs 23°C.
- June–August: Windhoek (average score 100/100 vs 81). Windhoek is the warmer, around 21°C daytime highs vs 18°C.
- September–October: Windhoek (average score 98/100 vs 92). Windhoek is the warmer, around 30°C daytime highs vs 26°C.
Full month-by-month guides: Johannesburg weather by month · Windhoek weather by month · Best time to visit South Africa.
More comparisons: Johannesburg vs Cape Town · Johannesburg vs Durban · Johannesburg vs Maputo · Windhoek vs Cape Town · Windhoek vs Gaborone · all head-to-heads