Weather in Durban in January
South Africa · 20-year averages, January
A good month. January is a solid month to be in Durban. You should expect rain on 18 days of the month, which is more days wet than dry.
January ranks 11 of 12 — near the bottom of Durban's year. June is the month that works, and the swing between the two is 27 points, which is a different holiday rather than a slightly better one. Worth keeping in perspective: January is the weakest month of Durban's year and it is still a perfectly good one. The downside here is small.
Rain on 18 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.
What the averages hide
Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average January reaches 30 °C; the day barely swings — 1.6 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest January day reached 29.3 °C and the coldest night fell to 19.8 °C, and the wettest single day dropped 46 mm — roughly 43% of the month's rain in one day.
January is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest January on record still delivered 164 mm against 45 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 107 mm average is a reasonable planning figure, not a promise.
Wind sits around 20.8 km/h — a steady breeze rather than a nuisance, and welcome on the warmer days, and humidity runs at 82%, high enough to notice on the warm days without dominating them.
How January sits in the year
Temperatures hold steady either side: 24.1 °C in December, 25.2 here, 25.8 in February. Nothing about the timing within the month matters much.
Daylight in January
January is at or near the longest days of Durban's year: 13.9 hours of daylight, losing 0.5 hours across the month. Evenings are the real gain — dinner outdoors still happens in full light.
Sea temperature
The sea sits at about 26.2 °C in January — warm enough to stay in as long as you like. This is the warmest the water gets all year.
How busy it gets
Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
January in Durban versus nearby
If Durban is one option among several, the nearby comparison is worth making. Pietermaritzburg is close enough to be a coin toss — 2.9 °C warmer, 7 days more rain. Johannesburg is close enough to be a coin toss — within a degree on temperature, 2 days more rain.
So: January is a compromise. June is 27 points better and is what Durban is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Durban
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 25.2 | 23.6 | 18 | 107 | 82 | 13.9 | 26.2 | 67 |
| February | 25.8 | 24.1 | 14 | 84 | 81 | 13.1 | 26.9 | 75 |
| March | 25.5 | 23.7 | 14 | 90 | 80 | 12.3 | 26.7 | 75 |
| April | 24.4 | 22.3 | 10 | 65 | 77 | 11.4 | 25.9 | 81 |
| May | 23.3 | 21.1 | 5 | 40 | 73 | 10.6 | 24.7 | 91 |
| June | 22 | 19.4 | 4 | 27 | 69 | 10.2 | 23.4 | 94 |
| July | 21.2 | 18.7 | 5 | 42 | 70 | 10.4 | 22.5 | 91 |
| August | 21.2 | 18.7 | 5 | 36 | 74 | 11 | 22 | 91 |
| September | 21.5 | 19.2 | 9 | 65 | 78 | 11.9 | 22.2 | 84 |
| October | 21.9 | 19.9 | 14 | 100 | 81 | 12.8 | 22.7 | 73 |
| November | 22.8 | 20.8 | 16 | 122 | 82 | 13.6 | 23.6 | 70 |
| December | 24.1 | 22.3 | 18 | 110 | 83 | 14 | 24.9 | 67 |
See all twelve months in Durban, or where else to go in January.
Planning the rest of the trip
- Flight time to Durban how long you are actually in the air
- Durban time zone and the difference from home
- Days until your trip count down to the departure date