Lihue
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Lihue Weather in September

September in Lihue averages 28°C (82°F) during the day and 24°C (75°F) at night. With just 64 mm (2.5 in) of rainfall on average, it doesn't get much drier than this.

Rainfall in Lihue in September

The month is known for having the least rain of the year. Make the most of the sunshine and clear skies. Past climate data indicates that roughly 16 days will see rain, totalling around 64 mm (2.5 in) for the month. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.

Temperature in Lihue in September

The temperature in Lihue in September is excellent. Daytime highs reach 28°C (82°F), with nights dropping to 24°C (75°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 24°C (75°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably. On average, this month sees the highest temperatures of the year. Worth packing a few lighter outfits.

Sunshine in Lihue in September

With approximately 242 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

Wind Speed in Lihue in September

Wind speeds average 4 m/s (8 knots) during September. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

Average water temperature in September

At 27°C (81°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.

Lihue Temperature in September

Min Temperature
24°C (75°F)
Max Temperature
28°C (82°F)
Water Temperature
27°C (81°F)
Chance of Rain
52%
Precipitation
64 mm (2.5 in)
Rainy days
16 days
Humidity
74%
Windspeed
4 m/s (8 knots)
Sunshine
242 hours
Percentage Sunshine
66%

Lihue Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Lihue - and find the best time to visit.

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Lihue typically stay consistent throughout September, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 24°C (75°F).

Average temperatures in September

Daily Historical Precipitation

50-year average (1976-2025)

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

Average precipitation in September

Historical weather records for Lihue in September

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

Lihue historical weather extremes in September

Based on weather observations in Lihue between 1976 and 2026, these are the recorded extremes during September.

  • The hottest September day on record in Lihue reached 33°C (91°F) (September 4, 2019).
  • The coldest September day was on September 7, 1996, with a maximum of 26°C (79°F).
  • The lowest overnight temperature recorded in September was 18°C (64°F) (September 17, 1981).

Best Places in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Lihue in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket. With water temperatures around 27°C (81°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Lihue in September

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

  • Swimming
    9/10
  • Cycling
    8/10
  • Walking
    8/10
  • Camping
    8/10
  • Outdoor sports
    8/10

Lihue 3-Day Forecast

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.