Climate Rakahanga Atoll 2020-2024

Climate and trends: average temperature, flight conditions, precipitation, wind speed and direction.

Calculated from historical METAR data of Tongareva Airport (NCPY) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	7.4	56	0	0	0	0
February	9.0	61	0	0	0	0
March	7.9	67	0	0	0	0
April	0.0		0	0	0	0
May	0.0		0	0	0	0
June	0.0		0	0	0	0
July	0.0		0	0	0	0
August	0.0		0	0	0	0
September	0.0		0	0	0	0
October	0.0		0	0	0	0
November	2.1		14	0	0	0
December	3.5		22	0	0	0
Average	8.0	61.3	3.3

2nd best VFR conditions of Cook Islands

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met: visibility of 8 km or more and a ceiling of 3,000 ft or more. Only observations between sunrise and sunset are taken into account.

Marginal VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	8.3	64	0	0	0	0
February	10.2	69	0	0	0	0
March	8.8	74	0	0	0	0
April	0.0		0	0	0	0
May	0.0		0	0	0	0
June	0.0		0	0	0	0
July	0.0		0	0	0	0
August	0.0		0	0	0	0
September	0.0		0	0	0	0
October	0.0		0	0	0	0
November	3.3		21	0	0	0
December	4.5		29	0	0	0
Average	9.1	68.6	4.7

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met: visibility of 5 km or more and a ceiling of 1,000 ft or more. Only observations between sunrise and sunset are taken into account.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	30.5	32	30	30	30	30
February	30.5	31	30	30	30	30
March	31.3	31	31	30	31	33
April	31.1		31	30	30	31
May	30.8		31	30	30	31
June	30.2		31	29	30	30
July	29.6		30	29	29	30
August	29.9		30	29	29	30
September	30.0		31	29	30	30
October	30.0		31	29	30	29
November	30.3		31	30	30	29
December	30.5		31	29	30	30
Average	30.5	31.4	30.5	29.3	29.8	30.3

2nd highest temperature of Cook Islands

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	26.0	28	25	26	27	27
February	26.7	28	27	26	27	27
March	26.1	28	26	27	27	25
April	26.9		28	27	27	28
May	26.9		28	27	27	27
June	26.4		28	26	26	27
July	26.2		28	27	27	26
August	25.5		27	26	25	24
September	26.0		28	25	27	27
October	26.1		27	26	26	26
November	26.2		27	25	27	27
December	26.4		27	27	27	27
Average	26.4	28.0	26.8	26.2	26.5	26.3

10th lowest temperature of Cook Islands

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	0.6	5	0	0	0	0
February	0.8	5	0	0	0	0
March	0.4	4	0	0	0	0
April	0.0		0	0	0	0
May	0.0		0	0	0	0
June	0.0		0	0	0	0
July	0.0		0	0	0	0
August	0.0		0	0	0	0
September	0.0		0	0	0	0
October	0.0		0	0	0	0
November	0.6		4	0	0	0
December	0.0		0	0	0	0
Average	0.6	4.7	0.3

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (knots)

Month	Average	2024	2023	2022	2021	2020
January	9.9	10	13	10	12	11
February	10.0	8	12	12	11	11
March	8.0	8	9	11	8	10
April	7.8		8	11	9	8
May	8.9		8	11	10	10
June	8.9		9	11	9	8
July	10.1		11	12	13	10
August	10.6		10	12	10	13
September	10.4		9	12	12	13
October	10.2		9	13	10	12
November	8.8		7	10	11	9
December	9.8		8	13	12	10
Average	9.3	8.5	9.5	11.4	10.6	10.5

2nd highest wind speed of Cook Islands

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	049°	047°	037°	053°	045°
February	027°	060°	048°	054°	047°
March	070°	058°	060°	065°	063°
April		068°	070°	068°	061°
May		075°	062°	068°	066°
June		068°	070°	071°	051°
July		075°	081°	079°	060°
August		084°	070°	070°	076°
September		061°	076°	079°	063°
October		064°	066°	049°	049°
November		059°	040°	050°	040°
December		045°	045°	051°	045°

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.