January in Tiwai Island — the year's strongest window
Best window · 8.5/10January averages 25°C (77°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rain is a non-issue at 2 mm for the month, with about 23 sunny days and 11.6 hours of daylight to work with.
On our climate-comfort scale this is the top-ranked month of the year for Tiwai Island at 8.5/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, swimwear and real sun protection.
February in Tiwai Island — reliably good (3rd best month)
Good · 8/10February averages 26°C (79°F) with humidity around 82%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rain is a non-issue at 15 mm for the month, with about 21 sunny days and 11.8 hours of daylight to work with.
It scores 8/10 here, 3rd of 12 months, against 8.5/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
March in Tiwai Island — reliably good (4th best month)
Good · 7.4/10March averages 27°C (80°F) with humidity around 84%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 38 mm of rain — occasional showers rather than washed-out days — alongside about 24 sunny days and 12 daylight hours.
It scores 7.4/10 here, 4th of 12 months, against 8.5/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
April in Tiwai Island — workable with trade-offs
Trade-offs · 5.2/10April averages 27°C (80°F) with humidity around 86%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 107 mm this is a genuinely wet month: about 23 sunny days in total, and outdoor plans need an indoor fallback.
It scores 5.2/10 here, 6th of 12 months, against 8.5/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, January is materially better in Tiwai Island — 3.3 points higher on the same scale.
May in Tiwai Island — the hardest end of the year
Hardest · 3.7/10May averages 27°C (80°F) with humidity around 89%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 182 mm this is a genuinely wet month: about 18 sunny days in total, and outdoor plans need an indoor fallback.
It scores 3.7/10 here, 7th of 12 months, against 8.5/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, January is materially better in Tiwai Island — 4.8 points higher on the same scale.
June in Tiwai Island — the hardest end of the year
Hardest · 3.2/10June averages 26°C (78°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
302 mm of rain puts this in monsoon territory — about 14 sunny days across the whole month, and multi-day washouts are normal.
It scores 3.2/10 here, 10th of 12 months, against 8.5/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
If your dates are flexible, January is materially better in Tiwai Island — 5.3 points higher on the same scale.
July in Tiwai Island — the hardest end of the year
Hardest · 3.4/10July averages 25°C (76°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
236 mm of rain puts this in monsoon territory — about 10 sunny days across the whole month, and multi-day washouts are normal.
It scores 3.4/10 here, 8th of 12 months, against 8.5/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
If your dates are flexible, January is materially better in Tiwai Island — 5.1 points higher on the same scale.
August in Tiwai Island — the hardest end of the year
Hardest · 3.4/10August averages 25°C (76°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
438 mm of rain puts this in monsoon territory — about 11 sunny days across the whole month, and multi-day washouts are normal.
It scores 3.4/10 here, 9th of 12 months, against 8.5/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
If your dates are flexible, January is materially better in Tiwai Island — 5.1 points higher on the same scale.
September in Tiwai Island — the hardest end of the year
Hardest · 3.2/10September averages 25°C (77°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
425 mm of rain puts this in monsoon territory — about 12 sunny days across the whole month, and multi-day washouts are normal.
It scores 3.2/10 here, 11th of 12 months, against 8.5/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
If your dates are flexible, January is materially better in Tiwai Island — 5.3 points higher on the same scale.
October in Tiwai Island — the hardest end of the year
Hardest · 3.2/10October averages 26°C (78°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
264 mm of rain puts this in monsoon territory — about 16 sunny days across the whole month, and multi-day washouts are normal.
It scores 3.2/10 here, 12th of 12 months, against 8.5/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
If your dates are flexible, January is materially better in Tiwai Island — 5.3 points higher on the same scale.
November in Tiwai Island — workable with trade-offs
Trade-offs · 6.3/10November averages 26°C (79°F) with humidity around 85%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 72 mm, so plan one flexible day in three; you still get about 19 sunny days and 11.7 hours of daylight.
It scores 6.3/10 here, 5th of 12 months, against 8.5/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
If your dates are flexible, January is materially better in Tiwai Island — 2.2 points higher on the same scale.
December in Tiwai Island — the year's strongest window
Best window · 8.5/10December averages 25°C (77°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Expect 16 mm of rain — occasional showers rather than washed-out days — alongside about 21 sunny days and 11.6 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Tiwai Island at 8.5/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, swimwear and real sun protection.
