Koloa Weather in January

January is one of the perfect months to visit Koloa, with daytime temperatures of 25°C (77°F) and lows of 21°C (70°F) at night. Do note that quite a bit of rainfall is typical, averaging around 61 mm (2.4 in).

Rainfall in Koloa in January

Rain is expected on roughly 15 days, totalling around 61 mm (2.4 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Koloa in January

Koloa in January is worth a visit. The temperature is perfect, with 25°C (77°F) during the day and 21°C (70°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 21°C (70°F) overnight, nights are warm enough to sit outside comfortably in light clothing.

Sunshine in Koloa in January

The area experiences a moderate amount of sunshine, with approximately 178 hours of sunlight expected. This means a decent mix of sun and overcast.

Wind Speed in Koloa 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

At 24°C (75°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.

If you're planning additional trips, our weather planner can help you find destinations that match your weather preferences.

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 the United States of America, check out our Koloa's climate page.

Koloa Temperature in January

Min Temperature 21°C (70°F)  

Max Temperature 25°C (77°F)  

Water Temperature 24°C (75°F) *  

Chance of Rain 50%  

Precipitation 61 mm (2.4 in)  

Rainy days 15 days  

Humidity 76% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 178 hours *  

Percentage Sunshine 51% *  

* Data from: Lihue, the United States of America (16 KM, 10 Miles).

Daily Historical Temperatures

51-year average (1976-2026)

Based on our historical records, temperatures in Koloa typically stay consistent throughout January, with daily highs averaging around 25°C (77°F). Nights are pleasant, with lows around 19°C (66°F).

Average temperatures in January

‹ Select year to compare to 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ›

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Daily Historical Precipitation

51-year average (1976-2026)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in January

‹ Select year to compare to 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ›

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Historical weather for Koloa in January

Browse day-by-day weather records for Koloa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

‹ 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 ›

‹ January February March April May June July August September October November December ›

Koloa historical weather extremes in January

Our historical data for Koloa spans 1976 to 2025, revealing these weather extremes.

• The hottest January day on record in Koloa reached 29°C (84°F) (January 3, 2006).
• The coldest January day was on January 16, 1997, with a maximum of 20°C (68°F).
• The lowest overnight temperature recorded in January was 13°C (55°F) (January 16, 2003).

What to Wear in Koloa in January

Comfortable temperatures call for an easy wardrobe in January. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Koloa in January

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

Swimming

7/10

Cycling

10/10

Walking

10/10

Camping

8/10

Outdoor sports

10/10

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 the United States of America, check out our Koloa's climate page.

More climate data for Koloa

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Koloa climate overview or explore weather in the United States of America.