June weather forecast
Halawa, HI

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Weather in June

As the middle of the year approaches, June brings further escalation of temperatures in Halawa, Hawaii. Drier conditions become more evident with the lowest rainfall of the year, at just 1.9" (48mm). The daylight duration peaks, complemented by an equal hike in sunshine hours. The sea temperature experiences a marginal rise, promising pleasurable aquatic activities. As the UV index hits its stride, a keen focus on sun safety is paramount.

Temperature

As June commences, the average high-temperature remains steady at a still warm 80.6°F (27°C), consistent with the climate of the preceding month. In Halawa, June nights witness a steady temperature drop to a comfortable 66.2°F (19°C).

Rainfall

The month with the least rainfall is June, when the rain falls for 7 days and typically collects 1.85" (47mm) of precipitation.

Ocean temperature

In Halawa, in June, the average water temperature is 77°F (25°C).
Note: Water activities in surface temperatures between 77°F (25°C) and 84.2°F (29°C) are seen as exceptional and extremely agreeable for lengthened time spans.

Daylight

The month with the longest days is June, with an average of 13h and 24min of daylight.
On the first day of the month, sunrise is at 5:44 am and sunset at 7:05 pm. On the last day of June, sunrise is at 5:48 am and sunset at 7:12 pm HST.

Sunshine

May through September, with an average of 9h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 12 during June leads to these instructions:
Take every vital safeguard, as unprotected skin and eyes may suffer burns rapidly. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. After a swim or outdoor exercise, one should liberally reapply broad-spectrum sunscreen with a sun protection factor of 30 or higher. Caution! The Sun's UV rays become stronger due to reflections from water and sand.

Frequently asked questions

What are the temperatures in Halawa in June?

In June, the average high-temperature and low-temperature are 80.6°F (27°C) and 66.2°F (19°C) respectively.

What is the driest month?

June is the month with the least rainfall. Rain falls for 7 days and accumulates 1.85" (47mm) of precipitation.

How many days does it rain in June in Halawa?

In Halawa, in June, during 7 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

What is the water temperature in June?

In Halawa, Hawaii, the average seawater temperature in June is 77°F (25°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

When are the longest days?

With an average of 13h and 24min of daylight, June has the longest days of the year.

How many hours of daylight does Halawa have in June?

The average day length in June is 13h and 24min.

When is the sunrise / sunset in June?

On the first day of June in Halawa, sunrise is at 5:44 am and sunset at 7:05 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 7:12 pm HST.

What is the month with the most sunshine?

The months with the most sunshine are May through September, with an average of 9h of sunshine.

How long on average sun shines in June?

In Halawa, the average sunshine duration in June is 9h.

What is the month with the highest UV index?

June through August, with an average maximum UV index of 12, are months with the highest UV index.

What is the UV index intensity in June?

The average daily maximum UV index in June is 12. A UV Index of 11, and more, symbolizes an extreme health vulnerability from exposure to Sun's UV rays.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in June
Halawa, HI

Average temperature in June - Halawa, HI
  • Average high temperature in June: 81°F

The warmest months (with the highest average high temperature) are July, August, September and October (82°F).
The months with the lowest average high temperature are January, February and March (77°F).

  • Average low temperature in June: 66°F

The month with the highest average low temperature is August (68°F).
The coldest months (with the lowest average low temperature) are January, February and March (61°F).

Average rainfall in June
Halawa, HI

Average rainfall in June - Halawa, HI
  • Average rainfall in June: 1.9"

The wettest month (with the highest rainfall) is January (7.4").
The driest month (with the least rainfall) is June (1.9").

Average rainfall days in June
Halawa, HI

Average rainfall days in June - Halawa, HI
  • Average rainfall days in June: 7 days

The months with the highest number of rainy days are January, March, April and December (12 days).
The months with the least rainy days are June and September (7 days).

Average sea temperature in June
Halawa, HI

Average sea temperature in June - Halawa, HI
  • Average sea temperature in June: 77°F

The best month for swimming (with the highest average sea temperature) is September (81°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (75°F).

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

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

The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).

  • Average sunshine in June: 9h

The months with the most sunshine are May, June, July, August and September (Average sunshine: 9h).
The months with the least sunshine are January, February, November and December (Average sunshine: 7h).

Average UV index in June
Halawa, HI

Average UV index in June - Halawa, HI
  • Average UV index in June: 12

The 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).

Halawa, Hawaii, USA

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