Haiku Weather in January

January in Haiku averages 25°C (77°F) during the day and 20°C (68°F) at night. Quite a bit of rainfall is typical this month, with around 80 mm (3.1 in) on average. An umbrella is a good idea.

Rainfall in Haiku in January

You can typically expect 12 days of rain this month, averaging around 80 mm (3.1 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Haiku in January

Haiku in January is worth a visit. The temperature is perfect, with 25°C (77°F) during the day and 20°C (68°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 20°C (68°F), evenings stay pleasantly warm.

Sunshine in Haiku in January

Expect sunny days throughout the month, with an estimated 216 hours of sunshine. This makes it a pleasant time to visit Haiku.

Wind Speed in Haiku in January

January sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Average water temperature in January

With water at 24°C (75°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.

If your ideal day consists of dry skies and pleasant temperatures, January, February, April, May, June, July, August, September, October, November and December typically offer the best circumstances for Haiku.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Hawaii, check out our Haiku's climate page.

Haiku Temperature in January

Min Temperature 20°C (68°F)  

Max Temperature 25°C (77°F)  

Water Temperature 24°C (75°F) *  

Chance of Rain 40%  

Precipitation 80 mm (3.1 in)  

Rainy days 12 days  

Humidity 78% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 216 hours *  

Percentage Sunshine 64% *  

* Data from: Kahului, the United States of America (11 KM, 7 Miles).

What to Wear in Haiku in January

For Haiku in January, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. The water temperature sits at about 24°C (75°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Haiku in January

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Hawaii, check out our Haiku's climate page.

More climate data for Haiku

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Haiku climate overview or explore weather in Hawaii.