January weather forecast
Ewa Gentry, HI

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Weather in January

January presents a pleasant weather profile for Ewa Gentry, Hawaii, with mild temperatures coupled with an average rainfall of 0.98" (25mm) spread over 12.3 days. The weather patterns transition slightly from those observed in December, indicating a minimal shift in climate conditions. Clear skies prevail for the majority of the month, creating balmy days and cool evenings. Sunshine lasts for approximately 11 hours per day, ensuring that outdoor ventures remain enjoyable. Predictable air pressure readings also contribute to an overall stable atmosphere.

Temperature

The arrival of January in Ewa Gentry denotes a barely perceptible change in the average high-temperatures to a still warm 75.9°F (24.4°C) from December's 76.6°F (24.8°C). With a barely noticeable fluctuation in temperature, Ewa Gentry reaches an average low of 70.5°F (21.4°C) during the January nights.

Humidity

The months with the lowest humidity are January, April through June, August through November, with an average relative humidity of 74%.

Rainfall

In January, the rain falls for 12.3 days. Throughout January, 0.98" (25mm) of precipitation is accumulated. In Ewa Gentry, during the entire year, the rain falls for 172.2 days and collects up to 12.72" (323mm) of precipitation.

Daylight

In January, the average length of the day is 11h and 1min.
On the first day of the month, sunrise is at 7:09 am and sunset at 6:01 pm. On the last day of January, sunrise is at 7:09 am and sunset at 6:21 pm HST.

Sunshine

In January, the average sunshine is 8.7h.

UV index

January through May, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In January, the maximum UV index of 6 suggests this advice:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are January temperatures?

The high-temperature during January is 75.9°F (24.4°C) and the low-temperature is 70.5°F (21.4°C).

What is the least humid month?

January, April through June, August through November, with an average relative humidity of 74%, are the least humid months.

What is the average humidity in January?

The average relative humidity in January is 74%.

How much does it rain in January?

In Ewa Gentry, during January, the rain falls for 12.3 days and regularly aggregates up to 0.98" (25mm) of precipitation.

What is the average length of the day in January?

In January, the average day length in Ewa Gentry is 11h and 1min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:09 am and sunset at 6:01 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:21 pm HST.

How many hours of sunshine does Ewa Gentry have in January?

In January, the average sunshine duration is 8.7h.

What is the month with the lowest UV index?

January through May, October through December, with an average maximum UV index of 6, are months with the lowest UV index.

How high is the UV index in January?

In Ewa Gentry, the average daily maximum UV index in January is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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 January
Ewa Gentry, HI

Average temperature in January - Ewa Gentry, HI
  • Average high temperature in January: 75.9°F

The warmest months (with the highest average high temperature) are August and September (81.5°F).
The month with the lowest average high temperature is February (74.8°F).

  • Average low temperature in January: 70.5°F

The months with the highest average low temperature are August and September (76.3°F).
The coldest month (with the lowest average low temperature) is February (69.4°F).

Average pressure in January
Ewa Gentry, HI

Average pressure in January - Ewa Gentry, HI
  • Average pressure in January: 30"Hg

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

Average wind speed in January
Ewa Gentry, HI

Average wind speed in January - Ewa Gentry, HI
  • Average wind speed in January: 9.1mph

The windiest month (with the highest average wind speed) is July (11.9mph).
The calmest months (with the lowest average wind speed) are January and October (9.1mph).

Average humidity in January
Ewa Gentry, HI

Average humidity in January - Ewa Gentry, HI
  • Average humidity in January: 74%

The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are January, April, May, June, August, September, October and November (74%).

Average rainfall in January
Ewa Gentry, HI

Average rainfall in January - Ewa Gentry, HI
  • Average rainfall in January: 0.98"

The wettest month (with the highest rainfall) is March (1.77").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in January
Ewa Gentry, HI

Average rainfall days in January - Ewa Gentry, HI
  • Average rainfall days in January: 12.3 days

The month with the highest number of rainy days is March (18.1 days).
The month with the least rainy days is July (11.3 days).

Average daylight in January /
Average sunshine in January
Ewa Gentry, HI

Average daylight in January / Average sunshine in January - Ewa Gentry, HI
  • Average daylight in January: 11h and 0min

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 January: 8h and 4min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).

Average sunshine days in January
Ewa Gentry, HI

Average sunshine days in January - Ewa Gentry, HI
  • Average sunshine days in January: 13.9 days

The months with the most sunshine days are July and August (15.3 days).
The month with the least sunshine days is March (6.8 days).

Average UV index in January
Ewa Gentry, HI

Average UV index in January - Ewa Gentry, HI
  • Average UV index in January: 6

The months with the highest UV index are June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, October, November and December (UV index 6).

Average cloud cover in January
Ewa Gentry, HI

Average cloud cover in January - Ewa Gentry, HI
  • Average cloud cover in January: 31

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is September (Cloud cover 30).

Average visibility in January
Ewa Gentry, HI

Average visibility in January - Ewa Gentry, HI
  • Average visibility in January: 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).

Ewa Gentry, Hawaii, USA

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