Lanai City Weather in September
September in Lanai City sees daytime temperatures around 28°C (82°F) and lows of 25°C (77°F) at night. The perfect weather makes it a good time to visit.
Rainfall in Lanai City in September
You can expect rain on roughly 8 days based on historical data, averaging 8 mm (0.3 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Lanai City in September
The perfect temperature in Lanai City in September makes it a solid month to visit, with 28°C (82°F) during the day and 25°C (77°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference. On average, this month sees the highest temperatures of the year. Worth packing a few lighter outfits.
Sunshine in Lanai City in September
Expect a lot of sunshine this month, with about 271 hours of sun. These sunny conditions add to the overall experience.If you're planning additional trips, our weather planner can help you find destinations that match your weather preferences.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Lanai City's climate page.
Lanai City Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
28°C (82°F)
Chance of Rain
26%
Precipitation
8 mm (0.3 in)
Rainy days
8 days
Humidity
70% *
Sunshine
271 hours *
Percentage Sunshine
74% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Lanai City typically stay consistent throughout September, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 21°C (70°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 for Lanai City in September
Browse day-by-day weather records for Lanai City spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Lanai City historical weather extremes in September
Based on 49 years of weather observations in Lanai City between 1976 and 2025, these are the recorded extremes.
- The hottest September day on record in Lanai City reached 34°C (93°F) (September 7, 2004).
- On September 27, 2018, Lanai City saw its coldest September day with temperatures maxing out at 24°C (75°F).
- The coldest night in September in Lanai City was on September 25, 2011, with a minimum of 16°C (61°F).
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
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tolerable
unpleasant
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What to Wear in Lanai City 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). Almost no rain is expected, so no need to bring rain gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Lanai City in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Lanai City's climate page.
Temperature Rainfall Sunshine Humidity
See the full Lanai City climate overview or explore weather in the United States of America.
