December weather forecast and climate
Hana, HI

Average temperature in December - Hana, HI
  • Average high temperature in December: 26.1°C

Warmest months (with the highest average high temperature) are August and September (28.3°C).
Months with the lowest average high temperature are January, February and March (25.6°C).

  • Average low temperature in December: 19.4°C

The month with the highest average low temperature is August (22.2°C).
The coldest month (with the lowest average low temperature) is February (17.8°C).

Average rainfall in December - Hana, HI
  • Average rainfall in December: 178.1mm

The wettest month (with the highest rainfall) is March (241.8mm).
The driest month (with the lowest rainfall) is June (103.6mm).

Average rainfall days in December - Hana, HI
  • Average rainfall days in December: 13 days

Months with the highest number of rainy days are April, July and August (16 days).
Months with the lowest number of rainy days are January and February (12 days).

Average sea temperature in December - Hana, HI
  • Average sea temperature in December: 24.9°C

The best month for swimming (with the highest average sea temperature) is September (26.7°C).
The coldest month (with the lowest average sea temperature) is March (24.3°C).

Average daylight in December / Average sunshine in December - Hana, HI
  • Average daylight in December: 10.9h

The month with the longest days is June (Average daylight: 13.4h).
The month with shortest days is December (Average daylight: 10.9h).

  • Average sunshine in December: 6h

Months with most sunshine are June, July, August and September (Average sunshine: 8h).
Months with least sunshine are November and December (Average sunshine: 6).

Average UV index in December - Hana, HI
  • Average UV index in December: 6

Months with the highest UV index are June, July and August (UV index 12).
The month with the lowest UV index is December (UV index 6).

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