July Weather in Princeville, Hawaii - 2025

Princeville, a small town with a dramatic setting, offers you a chance to witness the most staggering beaches, charming botanical gardens, and upscale resorts in all of Kauai County. The tranquil atmosphere of Princeville gives you a unique experience by bringing you close to nature. From waterfalls and caves to the mountains and the sea, Princeville touches every aspect of beauty when it comes to leaving a visitor in awe. The tropical climate of the region makes the town a year-round destination. After all, who wouldn't want to spend a nice holiday at a place like Princeville?

Weather July 2025 in Princeville Hawaii:

Generally, July in Princeville will be quite hot, with an average temperature of around 87°F / 31°C. But due to the very high humidity, it can feel very uncomfortable. You can expect around 17 rainy days, with on average 3.2 inches / 81 mm of rain during the month of July.
Moderately uncomfortable (moderate humidity) with high temperatures
dronepicr - CC BY 2.0

July weather in Princeville Hawaii

To get a good overview of the type of weather you can expect in July in Princeville, we will look at the day and night temperature, minimum and maximum water temperature, and if July is comfortable or humid

Generally, July in Princeville will be quite hot. Historical data shows that you can expect an average temperature of around 87°F / 31°C. But due to the very high humidity, it can feel very uncomfortable. During the night, it will cool down to around 69°F / 21°C. Many will prefer a location with air conditioning due to the high humidity level.

Princeville has its share of rainy days in July. You can expect around 17 rainy days, with on average 3.2 inches / 81 mm of rain during the whole month.

Average temperature
Average Sea temperature
Wintersun Comfort grade and huricane risk

The forecast for July 2025 is based on historical data and are averages. They will give a good indication what you can expect, but the daily temperature and rain will fluctuate during the month.

July weather in Princeville Hawaii in more detail

To get a better feeling for the type of weather, you can expect in July in Princeville, we will look at the temperature, rain, wind, humidity, water temperature, and sun and clouds

- What will the temperature be in Princeville in July

Generally, you can expect in July an average temperature of 87°F / 31°C during the day and an average of 69°F / 21°C during the night. In July, during the warmest part of the afternoon, the temperature can often get as high as 96°F / 36°C, and at the end of the night, it can get as low as 60°F / 16°C.

When looking at the whole year, January is the coldest month, with an average temperature of around 51°F / 11°C. July is the hottest month, with an average temperature of around 87°F / 31°C. When comparing July with the temperature in the month before and after, this is almost equal to June, which sees an average maximum temperature of around 84°F / 29°C. And almost equal to August, which sees an average maximum temperature of around 86°F / 30°C.

Day and night temperature variation for Princeville during the year.
Day and night temperature variation for Princeville during the year.

But average temperatures only tell half of the story. It is also good to check the maximum and minimum temperatures. When looking at the whole year, July is the hottest month, with a temperature of around 96°F / 36°C. January is the coldest month, with a temperature of around 69°F / 21°C. When comparing July with the temperature in the month before and after, this is almost equal to June, which sees an average maximum temperature of around 95°F / 35°C. And almost equal to August, which sees an average maximum temperature of around 95°F / 35°C.

In the following graph, you can see how many cold and hot days you can expect in Princeville each month:

Day and night temperature variation for Princeville during the year.
Day and night temperature variation for Princeville during the year.

- Can you expect rain in July in Princeville?

Generally, you can expect about 17 rain days in July, with on average 3.2 inches / 81 mm of rain.

When looking at the whole year, October is the dryest month, with an average rainfall of around 2.1 inches / 53 mmmm. January is the wettest month, with an average rainfall of around 3.8 inches / 97 mmmm. When comparing July with the month before and after, this is more than June, which sees around 2.9 inches / 73 mm of rain. And slightly more than August, which sees around 3 inches / 77 mm of rain

Rain days for Princeville during the year.
Rain days for Princeville during the year.

If we look at the number of days with rain, October is the month with the least amount of rain days with an average of between 7 and 8 days. July is the month with the most rain days with an average of between 17 and 18 days. When comparing July with the month before and after, this is slightly more than June, which sees an average of between 14 and 15 days of rain. And slightly more than August, which sees around 14 days of rain

- What will the water temperature be in Princeville for July

You can expect in July, the water temperature for Princeville to be between 78°F / 26°C and 77°F / 25°C.

To compare the water temperature we will use the maximum water temperature. You can expect this temperature on a more sunny day, close to the shore, when the wind does not mix the relatively warmer and colder water.

September has the highest water temperature, with an average of between 80°F / 27°C and 82°F / 28°C. March has the lowest water temperature, with an average of between 75°F / 24°C and 77°F / 25°C. When comparing the water temperature from July with the month before and after, July has a water temperature almost equal to June, with a water temperature of an average of between 78°F / 26°C and 80°F / 27°C. And almost equal to the water temperature from August, that is around 80°F / 27°C.

Water temperature for Princeville during the year.
Water temperature for Princeville during the year.

- Can you expect in July a lot of sunny days in Princeville

Generally, you can expect around 10 sunny days in July and around 17 partly sunny days. The remaining days will be cloudy.

When looking at the whole year, October is the month with the highest number of sunny days, with an average of between 13 and 14 sunny days. June is the month with the lowest number of sunny days, with an average of between 8 and 9 sunny days. When comparing July with the number of sunny days in the month before and after, it is almost equal to June, with an average of between 8 and 9 sunny days. And almost equal to August, with around 10 sunny days

The number of sunny, partly sunny, and cloudy days for Princeville
The number of sunny, partly sunny, and cloudy days for Princeville

We have looked at the sunny days in Princeville. Let's also look at the cloudy or overcast days. January is the month with the highest number of cloudy days, with around 10 cloudy days. June is the month with the lowest number of cloudy days, with an average of between 4 and 5 cloudy days. When comparing July with the number of cloudy days in the month before and after, it is almost equal to June, with an average of between 4 and 5 cloudy days. And almost equal to August, with around 5 cloudy days

- Will it be comfortable in July in Princeville?

Generally, July in Princeville will have a very high humidity, and can feel very uncomfortable.

We use the humidity and temperature in Princeville to calculate the Wintersun Expert Comfort level for each month. The lower the Wintersun Expert Comfort level, the more comfortable it will be. Only for certain people, extremely dry air can feel slightly uncomfortable.

When looking at the whole year, January has the lowest humidity, with a Wintersun Expert comfort level of "comfortable" (not very humid). July has the highest humidity, with a Wintersun Expert comfort level of "slightly uncomfortable" (moderately humid). When comparing July with the month before and after, this is almost equal to June, which has a Wintersun Comfort level of "slightly uncomfortable" (moderately humid). And almost equal to August, which has a Wintersun Comfort level of "slightly uncomfortable" (moderately humid)

Wintersun Expert Humidity / Comfort level for Princeville
Wintersun Expert Humidity / Comfort level for Princeville

What to do in Princeville Hawaii in July

Princeville is a great place to explore. Some of the best places to visit include:

  • Pu'u Poa Beach: The longest golden sand beach in the area. The place offers multiple amenities and it is a popular spot for visitors. You can spend a nice relaxing day at the beach and enjoy the beautiful views of the sunset.
  • Botanical Garden: The Botanical gardens of Princeville feature some of the most beautiful specimens in the region. The landscapes are breathtaking and the lush green environment is a complete mood changer. You can learn about the different types of plants and flowers present here.
  • Pali Ke Kua Beach: The hidden gem of Kauai is located at a tranquil location not far from the town. Even though you are required to pass through a rather steep pathway to reach here, the views make it all worthwhile in the end.
  • Hanalei Valley Lookout: One of the most iconic places to visit with a spectacular backdrop of mountains and a lush green valley in front. The beauty of this location is mesmerizing. You can take a walk around to admire the natural beauty and witness the sensational waterfalls of the area.

Is it humid in Princeville Hawaii in July?

A lot of people ask interested in the humidity or relative humidity for Princeville Hawaii in July. But the real question they want to ask is not about humidity but the amount of moisture in the air. Or better, about comfort. Will it be comfortable in July in Princeville, or will high humidity make it uncomfortable.

To answer this question, we have to look at the dew point. Relative humidity can change a lot in Princeville during the day and night, as it changes when the amount of moisture changes and, but also when the temperature changes. It is a lot less reliable for comfort. Where the dew point only varies with the amount of moisture in the air.

Looking at the dew point, we can see that for the month of July, you can expect that Princeville will have a very high humidity, and can feel very uncomfortable.

January is the month with the most comfort. It will not be very humid, and will feel comfortable. July is the most uncomfortable month. It will have a very high humidity, and can feel very uncomfortable. In the graph, you can see that there is not a lot of difference between the most comfortable and most uncomfortable months.

Humidity level for Princeville
Humidity level for Princeville

Is July a good time to go to Princeville Hawaii?

Trying to answer the question of whether July is a good time to go to Princeville is not as easy as it first seems. Some people like colder weather, and others prefer a warmer climate. Some are fine with some humidity, and others are not. If your location has air conditioning, the night temperature is less important.

These are some examples. I will try to answer the question with a more generic person in mind. The more detailed information in this article should be enough to check further if this applies to you as well.

If we look at the average temperature for Princeville in July, we can see that it will be too hot for a lot of visitors. In July, you can expect it to be quite hot, with an average temperature of around 87°F / 31°C. But due to the very high humidity, it can feel very uncomfortable. During the night, it will be around 69°F / 21°C.

The number of overcast days is more than 5, but you can still the sun with around 10 sunny days and 17 partly sunny days.

The last aspect we will look at is rain. You can expect around 17 rainy days, with on average 3.2 inches / 81 mm of rain during July. More then 5 days rain per month makes the chance higher you will see some rain during a shorter stay. But a day with rain does not mean a day you can not enjoy.

We have looked at the average day temperature, the night temperature, humidity, the number of overcast days, and the rain. We think that July in Princeville Hawaii is not the most optimal destination. But that doesn't mean it is not a good time for you to go. As said before, each visitor has their own preferences when it comes to the weather.

Does it rain all day in Princeville Hawaii in July?

In Princeville, it does not rain all day in July. You can expect around 17 rainy days, with on average 3.2 inches / 81 mm of rain during the month.

Another way of looking at the rain is the number of sunny days. For Princeville Hawaii, there are, on average 10 sunny days and 17 partly sunny days in July. That clearly shows that it is not raining all the time.

Is July the rainiest month in Princeville Hawaii?

July is the month with the most rainy days, and not the month with the most rain.

To answer what the rainiest month is in Princeville, we will both look at the month with the most rain, and the month with the highest number of rainy days.

July is the month with the the highest number of rainiest days. On average, you can expect 17 days with rain. October is the month with the lowest number of rainy days, with aproximately 8 days.

July is the month with the most rain. This is not equal as the one with the most rainy days. On average, you can expect 3.8 inches / 97 mm of rain. October is the month with the least amount of rain. This is not the same month as the one with the lowest number of rainy days. You can expect approximately 2.1 inches / 53 mm of rain.

Is July the most sunniest month in Princeville Hawaii?

July is not the month with the most sunny days, not the month with the most partly sunny days, and it is not the month with the lowest number of overcast days.

To answer what the sunniest month is in Princeville, we will of course look at the month with the most sunniest days, but also look at the month with the biggest number of days that are sunny or partly sunny.

October is the month with the highest number of sunny days. On average, you can expect 10 sunny days, and 17 partly suny days. June is the month with the lowest number of sunny days.

July and August are months with the highest number of sunny days and partly sunny days combined. While February is the month with the lowest number of sunny days and partly sunny days combined.

The last thing we will look at is the number of overcast days. June is the month with the lowest number of overcast days. While January is the month with the highest number of overcast days.

More information about Princeville Hawaii

Weather in Princeville Hawaii in other months

What to do in Princeville Hawaii for each month

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