Temperature
Cool by day, cold at night.
55°Ftypical September high
Typical range
September climate
September in Nelson
New Zealand · Oceania
Cool days and plenty of sun.
Good overall
Daytime high
55°F
Lows around 46°F
Rain
Several rainy days
Sun
9.5 h/day
Air feel
Very dry
Sea temp
54°F
Too cold for swimming
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days, including some longer spells. About 13 wet days, more than in most months.
43%wet-day frequency
AmountWet-day chance
Sunshine
A mix of sunshine and cloud.
9.5 hSeptember sunshine
Heat & humidity by month
Humidity is rarely noticeable in the cool air.
Very drySeptember Heat feel
Easy airHumid air
Hourly temperature pattern
In September, afternoons feel about 48° and nights feel near 42°.
Very coldColdCoolNight hours
Clear sky
Partly cloudy skies this month.
44%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
6 mphSeptember Light breeze
Sea temperature
54°FSeptember sea temp
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 54°F, easing to about 51°F in early evening.
Avg temp Typical range
Morning50°F
Rain23%
Cloud55%
Humid airLow
Sun intensityLow
Midday54°F
Rain25%
Cloud58%
Humid airLow
Sun intensityModerate
Late afternoon54°F
Rain25%
Cloud54%
Humid airLow
Sun intensityModerate
Early evening51°F
Rain19%
Cloud52%
Humid airLow
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 67 | 58 | 3.8 | 10 | 12.5 | 76 | 62 |
| Feb | 68 | 58 | 3.2 | 8 | 11.5 | 77 | 64 |
| Mar | 65 | 55 | 3.7 | 9 | 10.4 | 78 | 63 |
| Apr | 61 | 52 | 4.6 | 11 | 9.0 | 80 | 61 |
| May | 57 | 48 | 5.1 | 11 | 7.8 | 81 | 58 |
| Jun | 53 | 44 | 5.4 | 11 | 7.1 | 82 | 56 |
| Jul | 51 | 43 | 4.8 | 10 | 7.3 | 82 | 55 |
| Aug | 52 | 43 | 4.6 | 13 | 8.3 | 81 | 54 |
| Sep | 55 | 46 | 4.2 | 13 | 9.5 | 79 | 54 |
| Oct | 58 | 49 | 5.3 | 14 | 10.7 | 77 | 55 |
| Nov | 62 | 52 | 4.2 | 12 | 11.9 | 75 | 57 |
| Dec | 65 | 55 | 4.8 | 13 | 12.3 | 76 | 60 |
Similar climates
Similar
Similar travel styleDunedinNew ZealandSimilar travel styleMargaret RiverAustraliaSimilar travel styleChiloeChileSimilar travel styleGarden RouteSouth Africa
Want a side-by-side climate view? Compare Nelson with Dunedin.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology