Climate and monthly weather forecastCaptain Cook, HI
Climate and monthly weather forecast
Weather in January
January, like December, is another pleasant winter month in Captain Cook, Hawaii, with an average temperature ranging between min 65.1°F (18.4°C) and max 69.4°F (20.8°C). January's advent presents an average high-temperature of a still pleasant 69.4°F (20.8°C), indicating a slight variation from the conditions of the previous month. Weather in January »Weather in February
February, the last month of the winter in Captain Cook, is also an agreeable month, with an average temperature fluctuating between 64.9°F (18.3°C) and 68.9°F (20.5°C). The coldest period tends to be February, when average temperatures fluctuate between a high of 68.9°F (20.5°C) and a low of 64.9°F (18.3°C). Weather in February »Weather in March
The first month of the spring, March, is also an agreeable month in Captain Cook, Hawaii, with an average temperature fluctuating between 69.3°F (20.7°C) and 64.8°F (18.2°C). Captain Cook experiences an average high-temperature of a still agreeable 69.3°F (20.7°C) with the onset of March, subtly varied from February's 68.9°F (20.5°C). Weather in March »Weather in April
April, like March, is an agreeable spring month in Captain Cook, Hawaii, with an average temperature fluctuating between 69.3°F (20.7°C) and 64.9°F (18.3°C). Captain Cook's April is marked by a high-temperature average of a still pleasant 69.3°F (20.7°C), unchanged from the previous month. Weather in April »Weather in May
The last month of the spring, May, is another pleasant month in Captain Cook, Hawaii, with an average temperature varying between 71.1°F (21.7°C) and 66.7°F (19.3°C). As April turns into May, the average high-temperatures rest at a still agreeable 71.1°F (21.7°C), showing a minor variation from the prior month. Weather in May »Weather in June
The first month of the summer, June, is also an agreeable month in Captain Cook, Hawaii, with an average temperature ranging between max 72.1°F (22.3°C) and min 68.5°F (20.3°C). As Captain Cook welcomes June, the average high-temperature records at a still pleasant 72.1°F (22.3°C), marking an insignificant deviation from the prior month. Weather in June »Weather in July
July, the same as June, in Captain Cook, Hawaii, is another pleasant summer month, with an average temperature varying between 73°F (22.8°C) and 69.1°F (20.6°C). June's transformation into July witnesses an average high-temperature of a still agreeable 73°F (22.8°C), noting a minor change from the preceding month. Weather in July »Weather in August
August, the last month of the summer in Captain Cook, is another pleasant month, with an average temperature fluctuating between 69.1°F (20.6°C) and 73.2°F (22.9°C). During August and October, Captain Cook registers its highest temperatures, averaging a high of 73.2°F (22.9°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Captain Cook, Hawaii, with an average temperature fluctuating between 69.8°F (21°C) and 73°F (22.8°C). Transitioning into September, Captain Cook records an average high-temperature of a still agreeable 73°F (22.8°C), almost identical to August's 73.2°F (22.9°C). Weather in September »Weather in October
October, the same as September, in Captain Cook, Hawaii, is another pleasant autumn month, with an average temperature ranging between min 70°F (21.1°C) and max 73.2°F (22.9°C). The warmest period falls in August and October, when the average high-temperature reaches 73.2°F (22.9°C). Weather in October »Weather in November
November, the last month of the autumn in Captain Cook, is another pleasant month, with temperature in the range of an average high of 71.8°F (22.1°C) and an average low of 68.5°F (20.3°C). The onset of November manifests an average high-temperature of a still agreeable 71.8°F (22.1°C), demonstrating a minor variation from the preceding month. Weather in November »Weather in December
The first month of the winter, December, is still a pleasant month in Captain Cook, Hawaii, with an average temperature fluctuating between 66.6°F (19.2°C) and 70.5°F (21.4°C). Captain Cook records an average high-temperature of a still pleasant 70.5°F (21.4°C) in December, closely mirroring the climate of the previous month. Weather in December »Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The month with the least rainfall is January, when the rain falls for 10.8 days and typically collects 0.75" (19mm) of precipitation.
Throughout the year, there are 216.1 rainfall days, and 16.57" (421mm) of precipitation is accumulated.
January through April, November and December, with an average maximum UV index of 5, are months with the lowest UV index.
February, with an average high of 68.9°F (20.5°C) and a low of 64.9°F (18.3°C), signifies the coldest month of the year.
The least humid month is February, with an average relative humidity of 73%.
May has the most sunshine of the year, with an average of 10.7h of sunshine.
The months with the highest UV index in Captain Cook are May through October, with an average maximum UV index of 6.
June through September, with an average relative humidity of 81%, are most humid months.
With an average of 13h and 18min of daylight, June has the longest days of the year.
August and October are the warmest months, with an average high-temperature of 73.2°F (22.9°C).
The month with the most rainfall is September, when the rain falls for 21.5 days and typically aggregates up to 1.81" (46mm) of precipitation.
The months with the least sunshine are November and December, with an average of 7.3h of sunshine.
With an average of 11h and 0min of daylight, December has the shortest days of the year.
Captain Cook does not observe Daylight Saving Time (DST). HST timezone is used throughout the entire year.
Average temperature
Captain Cook, HI
The warmest months (with the highest average high temperature) are August and October (73.2°F).
The month with the lowest average high temperature is February (68.9°F).
The month with the highest average low temperature is October (70°F).
The coldest month (with the lowest average low temperature) is March (64.8°F).
Average pressure
Captain Cook, HI
- Average pressure in January:
29.99"Hg - Average pressure in February:
30"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
30.01"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
29.96"Hg - Average pressure in November:
29.98"Hg - Average pressure in December:
29.98"Hg
The month with the highest atmospheric pressure is April (30.04"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).
Average wind speed
Captain Cook, HI
- Average wind speed in January:
5.5mph - Average wind speed in February:
5.5mph - Average wind speed in March:
5.7mph - Average wind speed in April:
6.1mph - Average wind speed in May:
6.3mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
6.1mph - Average wind speed in September:
6.2mph - Average wind speed in October:
6mph - Average wind speed in November:
5.7mph - Average wind speed in December:
5.3mph
The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).
Average humidity
Captain Cook, HI
The months with the highest relative humidity are June, July, August and September (81%).
The month with the lowest relative humidity is February (73%).
Average rainfall
Captain Cook, HI
- Average rainfall in January:
0.75" - Average rainfall in February:
1.38" - Average rainfall in March:
1.57" - Average rainfall in April:
1.42" - Average rainfall in May:
1.42" - Average rainfall in June:
0.94"
- Average rainfall in July:
1.38" - Average rainfall in August:
1.73" - Average rainfall in September:
1.81" - Average rainfall in October:
1.54" - Average rainfall in November:
1.34" - Average rainfall in December:
1.3"
The wettest month (with the highest rainfall) is September (1.81").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days
Captain Cook, HI
- Average rainfall days in January:
10.8 days - Average rainfall days in February:
12.1 days - Average rainfall days in March:
16.2 days - Average rainfall days in April:
19.3 days - Average rainfall days in May:
21.1 days - Average rainfall days in June:
19.9 days
- Average rainfall days in July:
21.2 days - Average rainfall days in August:
21.8 days - Average rainfall days in September:
21.5 days - Average rainfall days in October:
20.4 days - Average rainfall days in November:
16.2 days - Average rainfall days in December:
15.6 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is January (10.8 days).
Average daylight / Average sunshine
Captain Cook, HI
- Average daylight in January:
11h and 6min - Average daylight in February:
11h and 30min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 36min - Average daylight in May:
13h and 6min - Average daylight in June:
13h and 18min
- Average daylight in July:
13h and 12min - Average daylight in August:
12h and 48min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 42min - Average daylight in November:
11h and 12min - Average daylight in December:
11h and 0min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in January:
9h and 0min - Average sunshine in February:
9h and 30min - Average sunshine in March:
9h and 6min - Average sunshine in April:
9h and 6min - Average sunshine in May:
10h and 42min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
8h and 42min - Average sunshine in September:
8h and 42min - Average sunshine in October:
7h and 48min - Average sunshine in November:
7h and 18min - Average sunshine in December:
7h and 18min
The month with the most sunshine is May (Average sunshine: 10h and 42min).
The months with the least sunshine are November and December (Average sunshine: 7h and 18min).
Average sunshine days
Captain Cook, HI
- Average sunshine days in January:
12.7 days - Average sunshine days in February:
10 days - Average sunshine days in March:
7.3 days - Average sunshine days in April:
3.5 days - Average sunshine days in May:
3.2 days - Average sunshine days in June:
4.3 days
- Average sunshine days in July:
4.5 days - Average sunshine days in August:
4 days - Average sunshine days in September:
3.5 days - Average sunshine days in October:
3.7 days - Average sunshine days in November:
6.3 days - Average sunshine days in December:
8.3 days
The month with the most sunshine days is January (12.7 days).
The month with the least sunshine days is May (3.2 days).
Average UV index
Captain Cook, HI
The months with the highest UV index are May, June, July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 5).
Average cloud cover
Captain Cook, HI
The month with the most cloud cover is June (Cloud cover 31).
The month with the least cloud cover is January (Cloud cover 15).
Average visibility
Captain Cook, HI
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
