Cook Islands · Month comparison
October vs May
May ranks #1 overall vs October at #6. Dry season opens — the crowd-to-value sweet spot before New Zealand winter school holidays.
October
#6 of 12 months
Best match
Late dry season with warming temperatures — excellent value before the wet season returns.
- ↑Temperatures warming back to 24°C as the Southern Hemisphere spring builds
- ↑Crowds significantly below the July–August peak — Aitutaki far more accessible
May
#1 of 12 months
Best match
Dry season opens — the crowd-to-value sweet spot before New Zealand winter school holidays.
- ↑85mm of rain is genuinely manageable — most days are dry and clear
- ↑Prices still below the June–August premium before school holidays hit
| Factor | October | May |
|---|---|---|
| Weather score | 8 | 8 |
| Value score | 6 | 7 |
| Crowd score | 6 | 7 |
| Events score | 5 | 5 |
| Atmosphere | 8 | 8 |
| Avg high temp | 24°C | 24°C |
| Monthly rain | 85mm | 85mm |
| Daily sunshine | 7.5hrs | 7hrs |
October trade-offs
- ↓Rain beginning to tick up toward wet season levels by late October
- ↓A handful of operators reduce schedules before the November transition
- ↓Not as reliably dry as August–September
May trade-offs
- ↓Evenings noticeably cooler than summer — pack a layer for open-air dinners
- ↓Some activities (lagoon cruises, sailing) operate reduced schedules before the main season
- ↓Less vibrant green in the interior as dry season bites
Scores compare months within Cook Islands. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →