Durban weather in September
September in Durban: warm, a little rain, with muggy air — an excellent time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#11 of 12 months in Durban · #646 of 1413 destinations to visit in September · comfort 81/100 (tier A)
- Days
- 24°C
- Nights
- 16°C
- Wet days
- 10
- Sun
- 8.7 h
- Humidity
- 77%
- Daylight
- 12 h

Traveller notes on Durban in September
Forum posters call September close to perfect: mid-20sC days, low-teens evenings, and no real humidity to speak of yet - the transitional window between winter and spring. Mornings stay a bit nippy early in the month, warming up as the day goes on, with 9am-3pm cited as the sweet spot for the beach. Some rain is possible, so a light waterproof is standard advice, though it's not framed as a major concern. One directional tip that comes up often: heading further north along the coast improves the odds of consistently good weather if Durban itself has an off day.
Other months in Durban
Regulars are consistent that winter here doesn't mean what it does elsewhere - dry conditions and plenty of sunshine all day, summer clothes with a light jersey covering most of the trip, a heavier layer needed only on the odd colder day. Our row backs that mild, genuinely dry read, 23.7C over 13.1C nights feeling 12C, with rain essentially absent, 28.3mm across 4.3 days, and humidity at 72 percent. Regulars are specific this is the better South African coastal base for the month, with Cape Town and the Garden Route running a real risk of cold, wet weather at the same time. The sea sits at a genuinely inviting 21.5C, warm enough to tempt swimmers even in winter. The record: 9 hours of sun, a 19.2 kph wind and AQI 60.
Durban-forum threads on December weather sum it up in two words: hot and humid, sunny beach days that regulars call genuinely great for a swim but paired with a wind that picks up often enough to be a real feature of the month rather than an occasional annoyance. Posters flag blue bottles washing up along the shore as a real hazard when the wind blows a certain direction, worth checking the beach flags before wading in regardless of how inviting the water looks. Strong side currents are called a bigger practical concern than the jellyfish for anyone swimming beyond the shallows. Humidity is described as the month's defining discomfort more than the actual temperature reading, sticky enough that a midday break indoors is standard local practice. Regulars still call December one of the liveliest, most reliably warm months on this coast. The record: 27.8C days feeling like a punishing 30C, 20.3C nights, a 23.6C sea and 80 percent humidity.
Durban-forum threads on November weather call it a genuine toss-up, warm and summery on a good day, rainy and windy on a bad one, springtime conditions that posters describe as temperamental rather than settled either way. November is technically the wettest month of the year here, but one visitor's two-week stay in the wider Durban and Drakensberg area saw rain only once, a single late-afternoon shower, calling the trip exceptionally dry compared to what the averages suggested. Showers when they do arrive are mostly evening events rather than all-day affairs, and a full washed-out day is called unusual. The sea holds a comfortable temperature for swimming already by this point in spring. Regulars call November genuinely beach-ready despite the wetter reputation, provided a visitor doesn't mind some day-to-day unpredictability. The record: 26.2C days feeling like 28C, 18.3C nights, 87mm across 12.8 days, a 22.4C sea, 79 percent humidity and 9.3 hours of sun.
June is South African winter and on this coast that means very good weather: cool mornings and evenings warming into 20 to 25C days, which our row gives as 24.4C over 13.8C, with only 4.2 precipitation days. The sea runs 18 to 21C - our row says 22.9C - cool but swimmable, and the beaches are described as lovely in winter. June is also when the sardine run starts, with the last week of June and the first of July the likeliest fortnight for the dolphins, whales and sharks that follow it, though regulars are clear the sardines are as unpredictable as the weather and can arrive any time from June to August. One consequence worth knowing: when the run is on, the shark nets come out and swimming is banned on the South Coast beaches. The record: humidity 74 percent and 9 hours of sun.
Add your own note from Durban's card on the map.
Durban climate normals — September
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Durban in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsHeritage Day, Term 3–4 (spring) break in South Africa(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Durban's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherDurban's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Durban in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Swimmable sea all year
1 Jan – 31 DecSea warm enoughThe Agulhas current runs warm down this coast, so this is the one big South African city where people swim in July without a wetsuit. The netted beaches on the Golden Mile are patrolled year round.
- Nature
Humpback migration
1 Jun – 30 NovWhale seasonThe continental shelf runs close in here, so the humpbacks heading north to calve pass within sight of the bluff from June, and come back south with the calves from September. No boat needed on a clear morning.
- Holiday
Heritage Day
24 SepNational holidayCrowdedClosuresA public holiday that South Africa has quietly turned into a national braai; the beachfront and the parks fill from mid-morning and the shops keep Sunday hours. Source ↗
Where is Durban?
Durban in September — FAQ
- Is September a good time to visit Durban?
- September in Durban: warm, a little rain, with muggy air — an excellent time to visit. It ranks #11 of 12 months for Durban on SeasonMap's comfort score (81/100).
- What is the weather like in Durban in September?
- In September, Durban averages a daily high of 24.1°C and a low of 15.9°C, with about 73.6 mm of rain over roughly 10 rainy days.
- What is the air quality in Durban in September?
- Durban has a mean US Air Quality Index of about 57 in September.