June
Other strong months: August and September
76/100 weather score
Cook Islands · 1991–2020
Best time to visit
Nikao
For Nikao, June has the most comfortable weather in our climate comparison. Typical daytime highs are 26.6°C, nights average 20°C, and rainfall totals about 53 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Best all-round monthJune
Typical daytime high26.6°C
Typical night-time low20°C
June rainfall53 mm
June
Other strong months: October and November
82/100 weather score
June
Other strong months: August and September
54/100 weather score
Make the answer personal
Choose the weather
that suits you.
Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.
6 months fit your choices for Nikao
January has the lowest comfort score at 36 out of 100, compared with June at 76. The main reason is that 200 mm of rain falls, and days average 29.4°C, 5° above the 24°C the score treats as ideal.
Quick answers
Planning a trip to Nikao?
These answers come from the same measured monthly climate record shown on this page.
When is the best time to visit Nikao?
June is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 26.6°C and 53 mm of rain.
What is the hottest month in Nikao?
February is hottest in this record, with a typical daytime high of 29.9°C and a night-time low of 23.5°C.
Which month has the least rain?
June has the lowest monthly rainfall total at 53 mm.
Is this a weather forecast?
No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.
Month by month
See how the weather
changes through the year.
The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.
| Month | Day | Night | Rain | Wet days | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 29.4°C | 23.3°C | 200 mm | 12.7 | 27.1°C | 13 h 17 | 36 | Good coverage |
| February | 29.9°C | 23.5°C | 170 mm | 12.6 | 27.5°C | 12 h 50 | 38 | Good coverage |
| March | 29.8°C | 23.5°C | 160 mm | 13.7 | 27.6°C | 12 h 16 | 39 | Good coverage |
| April | 29°C | 22.7°C | 154 mm | 11.3 | 27.3°C | 11 h 38 | 46 | Good coverage |
| May | 27.5°C | 21°C | 130 mm | 10 | 26.3°C | 11 h 07 | 58 | Good coverage |
| June | 26.6°C | 20°C | 53 mm | 7.3 | 25.4°C | 10 h 51 | 76 | Good coverage |
| July | 25.8°C | 19.1°C | 97 mm | 8.1 | 24.7°C | 10 h 57 | 73 | Good coverage |
| August | 25.5°C | 19°C | 90 mm | 8 | 24.4°C | 11 h 23 | 76 | Good coverage |
| September | 26.1°C | 19.5°C | 81 mm | 7.3 | 24.4°C | 12 h | 74 | Good coverage |
| October | 26.8°C | 20.2°C | 63 mm | 7.4 | 24.8°C | 12 h 37 | 73 | Good coverage |
| November | 28.1°C | 21.6°C | 99 mm | 7.6 | 25.6°C | 13 h 09 | 62 | Good coverage |
| December | 28.7°C | 22.5°C | 186 mm | 10.9 | 26.5°C | 13 h 25 | 43 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 32.8°C9 Jan 2017 | 18.0°C1 Jan 1981 | 159 mm18 Jan 1987 | 453 mm2008 · driest 7 mm in 2002 | 44 |
| February | 36.0°C13 Feb 1980 | 18.2°C26 Feb 2012 | 159 mm25 Feb 1986 | 379 mm1991 · driest 7 mm in 2010 | 44 |
| March | 34.2°C20 Mar 2001 | 17.0°C29 Mar 2016 | 151 mm13 Mar 2024 | 322 mm2023 · driest 7 mm in 1981 | 45 |
| April | 33.2°C18 Apr 1999 | 14.8°C2 Apr 2012 | 197 mm21 Apr 1985 | 447 mm1995 · driest 23 mm in 2007 | 44 |
| May | 36.0°C4 May 1979 | 14.8°C11 May 1998 | 383 mm30 May 2003 | 442 mm2003 · driest 0 mm in 1979 | 45 |
| June | 32.0°C16 Jun 2012 | 12.4°C19 Jun 2025 | 157 mm11 Jun 2004 | 245 mm1988 · driest 2 mm in 1981 | 45 |
| July | 31.1°C14 Jul 2023 | 12.8°C12 Jul 1987 | 134 mm8 Jul 1993 | 223 mm1993 · driest 6 mm in 2015 | 43 |
| August | 31.8°C12 Aug 2023 | 11.2°C30 Aug 2003 | 167 mm25 Aug 2010 | 206 mm2010 · driest 1 mm in 2011 | 44 |
| September | 31.5°C12 Sep 2003 | 10.5°C3 Sep 2012 | 92 mm18 Sep 2014 | 221 mm1996 · driest 1 mm in 1999 | 45 |
| October | 31.4°C16 Oct 2015 | 10.6°C14 Oct 2011 | 127 mm29 Oct 2007 | 207 mm1983 · driest 7 mm in 2006 | 43 |
| November | 32.9°C24 Nov 2010 | 11.0°C6 Nov 1981 | 140 mm27 Nov 1989 | 379 mm1988 · driest 4 mm in 1979 | 41 |
| December | 36.0°C4 Dec 1980 | 15.0°C4 Dec 1980 | 175 mm8 Dec 2003 | 395 mm2003 · driest 14 mm in 2004 | 44 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 22 | 7 | 3 |
| February | 22 | 10 | 3 |
| March | 22 | 10 | 3 |
| April | 21 | 5 | 3 |
| May | 20 | 1 | 2 |
| June | 18 | <1 | 1 |
| July | 15 | <1 | 2 |
| August | 13 | 0 | 1 |
| September | 15 | <1 | 1 |
| October | 19 | <1 | 1 |
| November | 21 | 2 | 2 |
| December | 21 | 3 | 3 |
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | 60% | 42% | 16% | 49% | 28.6–30.0°C |
| February | 57% | 43% | 18% | 46% | 29.1–30.8°C |
| March | 59% | 41% | 14% | 49% | 28.8–30.7°C |
| April | 59% | 41% | 15% | 57% | 28.0–30.1°C |
| May | 65% | 35% | 11% | 46% | 26.5–28.5°C |
| June | 75% | 27% | 7% | 34% | 25.4–27.3°C |
| July | 74% | 27% | 9% | 29% | 24.6–26.9°C |
| August | 74% | 26% | 7% | 25% | 24.2–26.4°C |
| September | 74% | 25% | 7% | 28% | 24.7–27.2°C |
| October | 74% | 25% | 7% | 23% | 26.1–27.6°C |
| November | 74% | 28% | 10% | 29% | 26.9–29.0°C |
| December | 64% | 37% | 13% | 43% | 27.6–29.5°C |
A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.
The evidence behind this page
Where these figures
come from.
- Place identity
- GeoNames 4036495
- NOAA station
- CWM00091843 · RAROTONGA INTL
- Station distance
- 0.5 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 20 usable years
- Daylight
- Calculated from latitude -21.21°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Sea temperature
- NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 11 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Nikao is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
How travel partnerships will work