Cook Islands · Month comparison

February vs May

May ranks #1 overall vs February at #11. Dry season opens — the crowd-to-value sweet spot before New Zealand winter school holidays.

Cook Islands February — lush mountainous interior of Rarotonga in peak cyclone-season rainfall

February

#11 of 12 months

Worth considering

The wettest month of the year at 200mm — and the peak of cyclone season.

  • Accommodation prices well below the dry-season peak
  • Rarotonga's waterfalls run at full volume after sustained rainfall
Cook Islands May — palm-fringed Rarotonga beach under clear dry-season skies

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
FactorFebruaryMay
Weather score
3
8
Value score
6
7
Crowd score
6
7
Events score
5
5
Atmosphere
6
8
Avg high temp28°C24°C
Monthly rain200mm85mm
Daily sunshine6hrs7hrs

February trade-offs

  • 200mm rainfall is the annual peak — persistent heavy showers disrupt outdoor plans daily
  • Cyclone risk highest of any month: travel insurance essential
  • Aitutaki lagoon cruises frequently cancelled or modified due to weather conditions

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 →