Monthly climate guide
Lihue weather in September
September in Lihue is typically hot, with average daytime highs around 27°C (81°F) and night-time lows near 26°C (78°F). The month usually brings about 59 mm of rain (some rain) and is a mix of sun and cloud. Daytime highs are about the same as August and about the same as October.
What stands out in September
- There's little difference between day and night (around 2°C).
- Humidity near 77% makes 27°C feel stickier than it sounds.
- Just 510 km apart, but Lihue runs about 2°C warmer than Hilo this month.
- Skies are at their clearest this time of year.
September is typically Lihue's warmest month.
Avg high
27°C
81°F
Avg low
26°C
78°F
Rainfall
59 mm
some rain
Humidity
77%
relative
Sky
40%
cloud · a mix of sun and cloud
Lihue weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 24°C / 75°F | 22°C / 72°F | 61 mm | 76% | 41% |
| February | 24°C / 74°F | 22°C / 71°F | 100 mm | 76% | 50% |
| March | 24°C / 74°F | 22°C / 71°F | 121 mm | 76% | 53% |
| April | 25°C / 76°F | 23°C / 73°F | 60 mm | 78% | 49% |
| May | 25°C / 78°F | 24°C / 74°F | 57 mm | 77% | 44% |
| June | 26°C / 79°F | 24°C / 76°F | 46 mm | 78% | 44% |
| July | 27°C / 80°F | 25°C / 77°F | 45 mm | 78% | 41% |
| August | 27°C / 81°F | 26°C / 78°F | 56 mm | 77% | 39% |
| September | 27°C / 81°F | 26°C / 78°F | 59 mm | 77% | 40% |
| October | 27°C / 80°F | 25°C / 77°F | 79 mm | 77% | 48% |
| November | 26°C / 78°F | 24°C / 76°F | 85 mm | 76% | 54% |
| December | 25°C / 76°F | 23°C / 74°F | 90 mm | 77% | 46% |
What to pack for September
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- A small travel umbrella, just in case
- Quick-dry fabrics — it feels stickier than the temperature suggests
Is September a good time to visit Lihue?
Compare the months in the chart above to find your ideal window.
Best time to visit Lihue →Other United States cities in September
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Lihue weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/lihue/september
<a href="https://weathercompare.eu/weather/usa/lihue/september">Lihue weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/usa/lihue" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Lihue weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/usa/lihue/september">Lihue weather in September</a> – WeatherCompare</p>
Lihue in September: quick answers
Is September a good time to visit Lihue?
September is a reasonable time for Lihue: highs around 27°C and about 59 mm of rain, though not one of the three best months.
How warm is Lihue in September?
Average highs are about 27°C (81°F) and average lows about 26°C (78°F), based on 10 years of daily data.
Does it rain a lot in Lihue in September?
Lihue typically gets around 59 mm of rain in September — some rain.
Figures are long-term averages for the area around Lihue (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.