Avarua weather in December
In December, Avarua sees average daytime highs of 26°C and overnight lows near 25°C, with 189 mm of rain across 14.5 wet days and about 13.3 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.
Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 23% of the time in December, and the air most often feels oppressive.
Daylight stretches from about 13 h 12 min at the start of December to 13 h 18 min by month's end. Set against the rest of the year, December is Avarua's 10th-clearest and 6th-windiest month. For the whole year in context, see Avarua's year-round climate.
- Daytime high
- 26°
- 5th warmest
- Overnight low
- 25°
- 8th coldest
- Rainfall
- 189 mm
- 14.5 wet days
- Daylight
- 13 h 18 min
- 5:57 AM – 7:14 PM
- Cloud cover
- 67%
- 10th clearest
- Wind
- 24 km/h
- 6th windiest
- Solar energy
- 6.56 kWh/m²
- Travel score
- 5.9
- out of 10
Avarua is capital city of the Cook Islands.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Day-to-day highs hold fairly steady near 26°C through the month.
A typical December day in Avarua reaches about 26°C in the afternoon and slips back to 25°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 27°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 25 | 24 |
| 2 | 25 | 24 |
| 3 | 25 | 24 |
| 4 | 25 | 24 |
| 5 | 25 | 24 |
| 6 | 25 | 24 |
| 7 | 25 | 24 |
| 8 | 26 | 24 |
| 9 | 26 | 24 |
| 10 | 26 | 24 |
| 11 | 26 | 24 |
| 12 | 26 | 24 |
| 13 | 26 | 24 |
| 14 | 26 | 25 |
| 15 | 26 | 25 |
| 16 | 26 | 25 |
| 17 | 26 | 25 |
| 18 | 26 | 25 |
| 19 | 26 | 25 |
| 20 | 26 | 25 |
| 21 | 26 | 25 |
| 22 | 26 | 25 |
| 23 | 26 | 25 |
| 24 | 26 | 25 |
| 25 | 26 | 25 |
| 26 | 26 | 25 |
| 27 | 26 | 25 |
| 28 | 26 | 25 |
| 29 | 26 | 25 |
| 30 | 26 | 25 |
| 31 | 26 | 25 |
Avarua weather by month
How December compares with the rest of the year at a glance. December is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 25° | 213 | 18.1 | 13.1 | 5.3 |
| Feb | 27° / 25° | 178 | 17 | 12.7 | 5.1 |
| Mar | 27° / 25° | 186 | 18.6 | 12.1 | 5.3 |
| Apr | 26° / 25° | 153 | 15 | 11.5 | 5.8 |
| May | 25° / 24° | 125 | 12.7 | 11 | 6.3 |
| Jun | 24° / 23° | 64 | 8.2 | 10.7 | 7.1 |
| Jul | 23° / 22° | 98 | 9.2 | 10.8 | 7.1 |
| Aug | 23° / 22° | 72 | 8.3 | 11.3 | 7.1 |
| Sep | 23° / 22° | 73 | 8.4 | 11.9 | 7.1 |
| Oct | 24° / 23° | 87 | 8.8 | 12.5 | 7.0 |
| Nov | 25° / 24° | 108 | 10.7 | 13 | 6.6 |
| Dec | 26° / 25° | 189 | 14.5 | 13.3 | 5.9 |
Cloud cover in December
The sky is clear or mostly clear about 23% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 61%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 39 | 39 | 39 | 39 | 39 | 38 | 37 | 38 | 38 | 39 | 39 | 39 | 39 | 40 | 41 | 42 | 42 | 43 | 43 | 43 | 43 | 42 | 42 | 40 | 40 | 39 | 38 | 37 | 35 | 35 | 35 |
| Cloudier (%) | 61 | 61 | 61 | 61 | 61 | 62 | 63 | 62 | 62 | 61 | 61 | 61 | 61 | 60 | 59 | 58 | 58 | 57 | 57 | 57 | 57 | 58 | 58 | 60 | 60 | 61 | 62 | 63 | 65 | 65 | 65 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 39 | 61 |
| 2 | 39 | 61 |
| 3 | 39 | 61 |
| 4 | 39 | 61 |
| 5 | 39 | 61 |
| 6 | 38 | 62 |
| 7 | 37 | 63 |
| 8 | 38 | 62 |
| 9 | 38 | 62 |
| 10 | 39 | 61 |
| 11 | 39 | 61 |
| 12 | 39 | 61 |
| 13 | 39 | 61 |
| 14 | 40 | 60 |
| 15 | 41 | 59 |
| 16 | 42 | 58 |
| 17 | 42 | 58 |
| 18 | 43 | 57 |
| 19 | 43 | 57 |
| 20 | 43 | 57 |
| 21 | 43 | 57 |
| 22 | 42 | 58 |
| 23 | 42 | 58 |
| 24 | 40 | 60 |
| 25 | 40 | 60 |
| 26 | 39 | 61 |
| 27 | 38 | 62 |
| 28 | 37 | 63 |
| 29 | 35 | 65 |
| 30 | 35 | 65 |
| 31 | 35 | 65 |
Chance of precipitation in December
Avarua gets around 189 mm of rain over 14.5 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 47% and peaks near 58% on the wettest days. The odds climb toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 44 | 44 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 44 | 44 | 45 | 46 | 47 | 48 | 49 | 51 | 52 | 54 | 55 | 56 | 57 | 58 |
| Rain chance (%) | |
|---|---|
| 1 | 45 |
| 2 | 45 |
| 3 | 45 |
| 4 | 45 |
| 5 | 45 |
| 6 | 45 |
| 7 | 45 |
| 8 | 45 |
| 9 | 44 |
| 10 | 44 |
| 11 | 43 |
| 12 | 43 |
| 13 | 43 |
| 14 | 43 |
| 15 | 43 |
| 16 | 43 |
| 17 | 43 |
| 18 | 44 |
| 19 | 44 |
| 20 | 45 |
| 21 | 46 |
| 22 | 47 |
| 23 | 48 |
| 24 | 49 |
| 25 | 51 |
| 26 | 52 |
| 27 | 54 |
| 28 | 55 |
| 29 | 56 |
| 30 | 57 |
| 31 | 58 |
Humidity in December
Most of December feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the oppressive band about 63% of days. Sticky, muggy-or-worse air turns up on roughly 92% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 |
| Humid (%) | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 4 | 4 |
| Muggy (%) | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 27 | 27 | 26 | 25 | 25 | 24 | 24 |
| Oppressive (%) | 62 | 62 | 62 | 63 | 63 | 62 | 62 | 62 | 61 | 62 | 62 | 63 | 62 | 62 | 62 | 62 | 62 | 62 | 61 | 62 | 62 | 62 | 64 | 64 | 65 | 64 | 65 | 66 | 67 | 69 | 68 |
| Miserable (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 4 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|
| 1 | 2 | 10 | 25 | 62 | 1 |
| 2 | 2 | 10 | 25 | 62 | 1 |
| 3 | 2 | 10 | 25 | 62 | 1 |
| 4 | 2 | 9 | 25 | 63 | 1 |
| 5 | 2 | 9 | 25 | 63 | 1 |
| 6 | 2 | 9 | 26 | 62 | 1 |
| 7 | 2 | 9 | 26 | 62 | 1 |
| 8 | 2 | 8 | 26 | 62 | 2 |
| 9 | 2 | 8 | 27 | 61 | 2 |
| 10 | 1 | 8 | 27 | 62 | 2 |
| 11 | 1 | 8 | 27 | 62 | 2 |
| 12 | 1 | 7 | 27 | 63 | 2 |
| 13 | 1 | 7 | 28 | 62 | 2 |
| 14 | 1 | 7 | 28 | 62 | 2 |
| 15 | 1 | 7 | 28 | 62 | 2 |
| 16 | 1 | 7 | 28 | 62 | 2 |
| 17 | 1 | 7 | 28 | 62 | 2 |
| 18 | 1 | 7 | 28 | 62 | 2 |
| 19 | 1 | 7 | 29 | 61 | 2 |
| 20 | 0 | 7 | 29 | 62 | 2 |
| 21 | 0 | 7 | 29 | 62 | 2 |
| 22 | 0 | 7 | 29 | 62 | 2 |
| 23 | 0 | 6 | 28 | 64 | 2 |
| 24 | 0 | 6 | 28 | 64 | 2 |
| 25 | 0 | 6 | 27 | 65 | 2 |
| 26 | 0 | 6 | 27 | 64 | 3 |
| 27 | 1 | 5 | 26 | 65 | 3 |
| 28 | 1 | 5 | 25 | 66 | 3 |
| 29 | 0 | 5 | 25 | 67 | 3 |
| 30 | 0 | 4 | 24 | 69 | 3 |
| 31 | 0 | 4 | 24 | 68 | 4 |
Wind in December
Winds average 24 km/h in December.
Across December, daily wind ranges from about 23 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 24 | breezy |
| 2 | 24 | breezy |
| 3 | 24 | breezy |
| 4 | 24 | breezy |
| 5 | 24 | breezy |
| 6 | 24 | breezy |
| 7 | 24 | breezy |
| 8 | 24 | breezy |
| 9 | 24 | breezy |
| 10 | 24 | breezy |
| 11 | 24 | breezy |
| 12 | 24 | breezy |
| 13 | 24 | breezy |
| 14 | 24 | breezy |
| 15 | 24 | breezy |
| 16 | 24 | breezy |
| 17 | 24 | breezy |
| 18 | 24 | breezy |
| 19 | 24 | breezy |
| 20 | 24 | breezy |
| 21 | 24 | breezy |
| 22 | 24 | breezy |
| 23 | 23 | breezy |
| 24 | 23 | breezy |
| 25 | 23 | breezy |
| 26 | 23 | breezy |
| 27 | 23 | breezy |
| 28 | 23 | breezy |
| 29 | 23 | breezy |
| 30 | 23 | breezy |
| 31 | 23 | breezy |
Sunrise & sunset in December
Daylight runs from about 13 h 12 min at the start of December to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 6 minutes over December. Sunrise moves from 5:53 AM to 6:04 AM, and sunset from 7:05 PM to 7:20 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 |
| Sunrise (AM) | 5:53 | 5:53 | 5:53 | 5:53 | 5:54 | 5:54 | 5:54 | 5:54 | 5:54 | 5:55 | 5:55 | 5:55 | 5:56 | 5:56 | 5:56 | 5:57 | 5:57 | 5:58 | 5:58 | 5:58 | 5:59 | 5:59 | 6:00 | 6:00 | 6:01 | 6:01 | 6:02 | 6:02 | 6:03 | 6:03 | 6:04 |
| Sunset (PM) | 7:05 | 7:05 | 7:06 | 7:07 | 7:07 | 7:08 | 7:09 | 7:09 | 7:10 | 7:10 | 7:11 | 7:12 | 7:12 | 7:13 | 7:13 | 7:14 | 7:14 | 7:15 | 7:15 | 7:16 | 7:16 | 7:17 | 7:17 | 7:18 | 7:18 | 7:19 | 7:19 | 7:19 | 7:20 | 7:20 | 7:20 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.2 | 5:53 | 7:05 |
| 2 | 13.2 | 5:53 | 7:05 |
| 3 | 13.2 | 5:53 | 7:06 |
| 4 | 13.2 | 5:53 | 7:07 |
| 5 | 13.2 | 5:54 | 7:07 |
| 6 | 13.2 | 5:54 | 7:08 |
| 7 | 13.2 | 5:54 | 7:09 |
| 8 | 13.2 | 5:54 | 7:09 |
| 9 | 13.3 | 5:54 | 7:10 |
| 10 | 13.3 | 5:55 | 7:10 |
| 11 | 13.3 | 5:55 | 7:11 |
| 12 | 13.3 | 5:55 | 7:12 |
| 13 | 13.3 | 5:56 | 7:12 |
| 14 | 13.3 | 5:56 | 7:13 |
| 15 | 13.3 | 5:56 | 7:13 |
| 16 | 13.3 | 5:57 | 7:14 |
| 17 | 13.3 | 5:57 | 7:14 |
| 18 | 13.3 | 5:58 | 7:15 |
| 19 | 13.3 | 5:58 | 7:15 |
| 20 | 13.3 | 5:58 | 7:16 |
| 21 | 13.3 | 5:59 | 7:16 |
| 22 | 13.3 | 5:59 | 7:17 |
| 23 | 13.3 | 6:00 | 7:17 |
| 24 | 13.3 | 6:00 | 7:18 |
| 25 | 13.3 | 6:01 | 7:18 |
| 26 | 13.3 | 6:01 | 7:19 |
| 27 | 13.3 | 6:02 | 7:19 |
| 28 | 13.3 | 6:02 | 7:19 |
| 29 | 13.3 | 6:03 | 7:20 |
| 30 | 13.3 | 6:03 | 7:20 |
| 31 | 13.3 | 6:04 | 7:20 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 6.56 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 3.44 kWh/m² to a high of 6.56 kWh/m² in December across the year — December's 6.56 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.3 | 6.3 | 6.3 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.5 | 6.5 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.3 | Intense |
| 2 | 6.3 | Intense |
| 3 | 6.3 | Intense |
| 4 | 6.4 | Intense |
| 5 | 6.4 | Intense |
| 6 | 6.4 | Intense |
| 7 | 6.4 | Intense |
| 8 | 6.4 | Intense |
| 9 | 6.4 | Intense |
| 10 | 6.4 | Intense |
| 11 | 6.4 | Intense |
| 12 | 6.4 | Intense |
| 13 | 6.5 | Intense |
| 14 | 6.5 | Intense |
| 15 | 6.5 | Intense |
| 16 | 6.5 | Intense |
| 17 | 6.5 | Intense |
| 18 | 6.5 | Intense |
| 19 | 6.5 | Intense |
| 20 | 6.5 | Intense |
| 21 | 6.5 | Intense |
| 22 | 6.6 | Intense |
| 23 | 6.6 | Intense |
| 24 | 6.6 | Intense |
| 25 | 6.6 | Intense |
| 26 | 6.6 | Intense |
| 27 | 6.6 | Intense |
| 28 | 6.6 | Intense |
| 29 | 6.6 | Intense |
| 30 | 6.5 | Intense |
| 31 | 6.5 | Intense |
Is December a good time to visit Avarua?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a reasonable time to visit Avarua for sightseeing.
What to pack for Avarua in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Avarua sees daytime highs around 26°C and nights near 25°C. Pack rain gear and sun protection. Worth having: light clothes and a windbreaker. About 15 days see rain.
Sea temperature near Avarua in December
The nearest coast averages about 27°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 14 km away) is warmest in March at about 28°C and coldest in August near 24°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 28 | 28 | 27 | 26 | 25 | 25 | 24 | 24 | 25 | 26 | 27 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 28 | Warm |
| Mar | 28 | Warm |
| Apr | 27 | Warm |
| May | 26 | Warm |
| Jun | 25 | Warm |
| Jul | 25 | Warm |
| Aug | 24 | Warm |
| Sep | 24 | Warm |
| Oct | 25 | Warm |
| Nov | 26 | Warm |
| Dec | 27 | Warm |
UV index in Avarua in December
Clear-sky midday UV in December peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Avarua peaks around February 13 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 6 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 15 | 17 | 13 | 9 | 7 | 6 | 6 | 8 | 10 | 12 | 13 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | Very high | High | High | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 17 | Extreme |
| Mar | 13 | Extreme |
| Apr | 9 | Very high |
| May | 7 | Very high |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 8 | Very high |
| Sep | 10 | Extreme |
| Oct | 12 | Extreme |
| Nov | 13 | Extreme |
| Dec | 13 | Extreme |
Where is Avarua?
Avarua sits at 21.2°S, 159.8°W, 7 m above sea level, in Cook Islands. The nearest listed city is Bora Bora, 994 km away.
Topography around Avarua
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Avarua.
Within 3 km, the terrain around Avarua has significant variations in elevation — a maximum elevation change of 440 m around an average of 65 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 495 m; within 80 km, significant variations in elevation — a maximum elevation change of 478 m.
The land around Avarua is covered by trees (49%) and water (41%) within 3 km, water (92%) within 16 km, and water (98%) within 80 km.
Cook Islands travel facts
- Power plugs
- Type I
- 240 V · 50 Hz
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Avarua (-21.2075°, -159.7755°, elevation 7 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).