The best times to visit Honolulu Watershed Forest Preserve for ideal weather are

January 1st to May 20th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.


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Other Honolulu Watershed Forest Preserve Travel Info

Weather in Honolulu Watershed Forest Preserve

Temperature

Average temperatures in Honolulu Watershed Forest Preserve vary very little. Considering humidity, temperatures feel hot for about half of the year and otherwise nice with a low chance of precipitation most of the year. The area is somewhat temperate — in the 48th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Honolulu Watershed Forest Preserve, the hottest months are September, August, and then October. See average monthly temperatures below. The warmest time of year is generally late August to early September where highs are regularly around 85.7°F (29.8°C) with temperatures rarely dropping below 74.8°F (23.8°C) at night.

Honolulu Watershed Forest Preserve Temperatures (Fahrenheit)

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High
Average
Low

Honolulu Watershed Forest Preserve Temperatures (Celsius)

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High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Honolulu Watershed Forest Preserve Perceived Temperature (F)

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Average
Low

Honolulu Watershed Forest Preserve Perceived Temperature (C)

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High
Average
Low

 

Average Honolulu Watershed Forest Preserve Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

MonthAvg. High (°F)Avg. Mean (°F)Avg. Low (°F)
Jan79.173.368.4
Feb7973.368.5
Mar7973.469.2
Apr80.274.770.5
May81.976.372
Jun82.677.573.4
Jul8478.474
Aug85.179.174.6
Sep85.579.274.7
Oct84.278.574.3
Nov81.776.772.8
Dec8074.970.8

Show Celsius

MonthAvg. High (°C)Avg. Mean (°C)Avg. Low (°C)
Jan26.222.920.2
Feb26.122.920.3
Mar26.12320.7
Apr26.823.721.4
May27.724.622.2
Jun28.125.323
Jul28.925.823.3
Aug29.526.223.7
Sep29.726.223.7
Oct2925.823.5
Nov27.624.822.7
Dec26.723.821.6


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Honolulu Watershed Forest Preserve are September, August, and then June. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid June. For example, on the week of June 11th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early March with an average of 2 days of significant precipitation the week of March 5th.

When can you find snow in Honolulu Watershed Forest Preserve? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Honolulu Watershed Forest Preserve.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Honolulu Watershed Forest Preserve (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

MonthDaily Chance of RainAverage Snow Depth (in)Total Precipitation (in)
Jan16%02.6
Feb12%01.7
Mar19%03.5
Apr10%01.4
May8%01.2
Jun8%01.2
Jul8%01.5
Aug8%01
Sep7%00.7
Oct14%02.2
Nov17%03.3
Dec20%04.5

Show Centimeters

MonthDaily Chance of RainAverage Snow Depth (cm)Total Precipitation (cm)
Jan1606.6
Feb1204.3
Mar1908.9
Apr1003.6
May803
Jun803
Jul803.8
Aug802.5
Sep701.8
Oct1405.6
Nov1708.4
Dec20011.4

 

Humidity and Wind

Honolulu Watershed Forest Preserve has some humid months, and above average humidity throughout the year. The least humid month is April (65.9% relative humidity), and the most humid month is December (69.6%).

Wind in Honolulu Watershed Forest Preserve is usually moderate. The windiest month is June, followed by April and March. June’s average wind speed of around 7.8 knots (9 MPH or 14.5 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early January where average top sustained speeds reach 13.5 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Honolulu Watershed Forest Preserve.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

MonthAvg. WindAvg. Wind FeelSustained High WindHigh Wind Feel
Jan6.3Light breeze12.3Significant breeze
Feb6.8Light breeze12Significant breeze
Mar7.7Gentle breeze12.8Significant breeze
Apr7.8Gentle breeze12.4Significant breeze
May7Gentle breeze11.4Significant breeze
Jun7.8Gentle breeze11.9Significant breeze
Jul7.5Gentle breeze11.6Significant breeze
Aug7.5Gentle breeze11.4Significant breeze
Sep6.7Light breeze10.9Significant breeze
Oct6.5Light breeze10.9Gentle breeze
Nov7.2Gentle breeze12Significant breeze
Dec6.7Light breeze11.9Significant breeze

Show Relative Humidity by Month

MonthAvg. Relative Humidity
Jan66.8%
Feb66.2%
Mar66.2%
Apr65.9%
May66.4%
Jun66.3%
Jul68.6%
Aug67.7%
Sep67.1%
Oct68.3%
Nov67.3%
Dec69.6%

 

Is it Safe to Travel to Honolulu Watershed Forest Preserve?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Honolulu Watershed Forest Preserve, the United States is July, followed by March and February. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Honolulu Watershed Forest Preserve in June. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is very reliable. Displayed data is calculated relative to the peak, so a score of 75.7 in June means 75.7% of the tourists vs. July.


Overall Honolulu Watershed Forest Preserve Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 82.2°F (27.9°C) and 78.5°F (25.8°C) with warmer temperatures in the later months. Rain is somewhat common with 3 to 6 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see the least precipitation with about 2 days of precipitation per month. June – August is fairly slow season for tourism in Honolulu Watershed Forest Preserve, so lodging and other accommodations may cost slightly less.

Fall (September through November)

Fall daily highs range from 85.7°F (29.8°C) and 80.6°F (27°C), which will feel very nice given the humidity and wind. It rains or snows a normal amount: 2 to 5 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is perfect this time of year in Honolulu Watershed Forest Preserve to be enjoyable for warm weather travelers. The average high during this season is between 80.7°F (27.1°C) and 78.7°F (25.9°C). On average, it rains or snows a fair amount: 3 to 6 times per month. These times of year are the busiest with tourists.

 

Best Times to Travelthe United States › Honolulu Watershed Forest Preserve, the United States


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