June weather forecast
Kapaau, HI

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Weather in June

June, the first month of the summer in Kapaau, is still a comfortable month, with an average temperature fluctuating between 65.8°F (18.8°C) and 57°F (13.9°C).

Temperature

The start of June marks an average high-temperature of a still refreshing 65.8°F (18.8°C), hardly distinguishable from the conditions in May. Kapaau maintains a near steady average temperature of 57°F (13.9°C) during the nights of June, demonstrating little drop from daytime highs.

Humidity

The average relative humidity in June is 81%.

Rainfall

The month with the least rainfall is June, when the rain falls for 23.8 days and typically collects 1.57" (40mm) of precipitation.

Daylight

The month with the longest days is June, with an average of 13h and 18min of daylight.
On the first day of June, sunrise is at 5:42 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 7:07 pm HST.

Sunshine

In June, the average sunshine is 9.7h.

UV index

May through October, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 5 in June translates into this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Frequently asked questions

What are June temperatures?

The high-temperature, in June, in Kapaau, records 65.8°F (18.8°C), while the low-temperature is 57°F (13.9°C).

What is the average humidity in June?

In June, the average relative humidity is 81%.

What is the driest month?

June is the month with the least rainfall. Rain falls for 23.8 days and accumulates 1.57" (40mm) of precipitation.

How many days does it rain in June?

In Kapaau, Hawaii, in June, it is raining for 23.8 days, with typically 1.57" (40mm) of accumulated precipitation.

When are the longest days?

June has the longest days of the year, with an average of 13h and 18min of daylight.

How many hours of daylight does Kapaau have in June?

In June, the average day length is 13h and 20min.

What time are sunrise and sunset in June?

In June, on the first day of the month, sunrise is at 5:42 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 7:07 pm HST.

How long on average sun shines in June?

The average sunshine duration in June is 9.7h.

When is the highest UV index?

The months with the highest UV index are May through October, with an average maximum UV index of 5.

What is the UV index reading in June?

In June, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Kapaau, HI

Average temperature in June - Kapaau, HI
  • Average high temperature in June: 65.8°F

The warmest month (with the highest average high temperature) is August (67.5°F).
The month with the lowest average high temperature is March (61.9°F).

  • Average low temperature in June: 57°F

The month with the highest average low temperature is September (59°F).
The coldest month (with the lowest average low temperature) is February (52°F).

Average pressure in June
Kapaau, HI

Average pressure in June - Kapaau, HI
  • Average pressure in June: 30.02"Hg

The month with the highest atmospheric pressure is April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).

Average wind speed in June
Kapaau, HI

Average wind speed in June - Kapaau, HI
  • Average wind speed in June: 5.3mph

The windiest months (with the highest average wind speed) are July and August (5.5mph).
The calmest months (with the lowest average wind speed) are January, May and October (4.5mph).

Average humidity in June
Kapaau, HI

Average humidity in June - Kapaau, HI
  • Average humidity in June: 81%

The months with the highest relative humidity are September and October (84%).
The month with the lowest relative humidity is February (78%).

Average rainfall in June
Kapaau, HI

Average rainfall in June - Kapaau, HI
  • Average rainfall in June: 1.57"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is June (1.57").

Average rainfall days in June
Kapaau, HI

Average rainfall days in June - Kapaau, HI
  • Average rainfall days in June: 23.8 days

The month with the highest number of rainy days is September (27.3 days).
The month with the least rainy days is January (17.1 days).

Average daylight in June /
Average sunshine in June
Kapaau, HI

Average daylight in June / Average sunshine in June - Kapaau, HI
  • Average daylight in June: 13h and 2min

The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 10h and 54min).

  • Average sunshine in June: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

Average sunshine days in June
Kapaau, HI

Average sunshine days in June - Kapaau, HI
  • Average sunshine days in June: 3.1 days

The month with the most sunshine days is January (9.7 days).
The month with the least sunshine days is September (0.8 days).

Average UV index in June
Kapaau, HI

Average UV index in June - Kapaau, HI
  • Average UV index in June: 5

The months with the highest UV index are May, June, July, August, September and October (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).

Average cloud cover in June
Kapaau, HI

Average cloud cover in June - Kapaau, HI
  • Average cloud cover in June: 40

The months with the most cloud cover are April and September (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 29).

Average visibility in June
Kapaau, HI

Average visibility in June - Kapaau, HI
  • Average visibility in June: 6mi

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).

Kapaau, Hawaii, USA

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