When should you visit each — and when are both ideal?
Best for both · March, April, October, Novembercomfortable in both cities
Climate Overview
Johannesburg (South Africa · Gauteng) has a temperate climate; Hanoi shares the same classification. Johannesburg's warmest month is October (25.9°C avg high); Hanoi peaks in June (32.6°C avg high).
Monthly Breakdown
South Africa · Gauteng
| Month | High | Low | Rain | Sun |
|---|
| JAN | 25.6° | 14.7° | 116mm | 11.5h |
| FEB | 24.8° | 14.4° | 117mm | 10.9h |
| MAR | 23.7° | 13° | 73mm | 10.5h |
| APR | 21.4° | 10.2° | 54mm | 10.1h |
| MAY | 19.5° | 7.2° | 16mm | 9.8h |
| JUN | 17.1° | 4.2° | 6mm | 9.8h |
| JUL | 17.1° | 3.5° | 4mm | 10.2h |
| AUG | 20.6° | 6.4° | 4mm | 10.6h |
| SEP | 24.7° | 9.9° | 12mm | 11.3h |
| OCT | 25.9° | 11.8° | 42mm | 11.1h |
| NOV | 25.5° | 13.1° | 86mm | 11.4h |
| DEC | 25.5° | 14.5° | 123mm | 11.3h |
Vietnam · Hanoi
| Month | High | Low | Rain | Sun |
|---|
| JAN | 21.3° | 11.7° | 45mm | 5.4h |
| FEB | 23.4° | 13.1° | 44mm | 5.7h |
| MAR | 27.5° | 17.6° | 61mm | 6.0h |
| APR | 29.9° | 20.6° | 101mm | 7.1h |
| MAY | 32° | 24° | 160mm | 8.7h |
| JUN | 32.6° | 25.8° | 201mm | 9.1h |
| JUL | 32.2° | 25.6° | 282mm | 8.9h |
| AUG | 31.5° | 25.3° | 355mm | 8.3h |
| SEP | 30.8° | 24.2° | 255mm | 8.3h |
| OCT | 27.8° | 20.2° | 167mm | 7.7h |
| NOV | 25.6° | 17.1° | 51mm | 6.9h |
| DEC | 20.9° | 11.6° | 22mm | 6.2h |