Kahului Climate by Month
Kahului, Hawaii, United States
Warm all year, with rain spread through the year.
Warm all year, with rain spread through the year: that's Kahului's climate in short. Expect highs of 87°F (31°C) in September and 80°F (27°C) in January, with the coldest nights (February) near 64°F (18°C). About 62 in (1576 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 87°F(31°C)
- Average high, September
- Coldest nights
- 64°F(18°C)
- Average low, February
- Rain per year
- 62 in(1576 mm)
- No clear rainy season
- Humidity
- 70%
- Sunniest: June
Best and worst months in Kahului
Best for weatherThe most comfortable weather comes in January and February, with highs around 80°F (27°C) and about 3.8 in (97 mm) of rain a month.
Least pleasantAugust is the least pleasant month: it's the wettest, with 8.0 in (204 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in February.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Kahului weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuaryBest | 80°F(27°C) | 65°F(18°C) | 4.0 in(102 mm) | 70% | 4.0 |
| FebFebruaryBest | 80°F(27°C) | 64°F(18°C) | 3.6 in(92 mm) | 70% | 4.6 |
| MarMarch | 81°F(27°C) | 66°F(19°C) | 7.5 in(190 mm) | 71% | 5.0 |
| AprApril | 82°F(28°C) | 68°F(20°C) | 6.7 in(170 mm) | 68% | 5.8 |
| MayMay | 84°F(29°C) | 69°F(20°C) | 5.1 in(130 mm) | 68% | 6.0 |
| JunJune | 85°F(30°C) | 71°F(21°C) | 2.6 in(65 mm) | 68% | 6.2 |
| JulJuly | 86°F(30°C) | 72°F(22°C) | 5.0 in(126 mm) | 68% | 6.1 |
| AugAugust | 87°F(30°C) | 72°F(22°C) | 8.0 in(204 mm) | 70% | 5.9 |
| SepSeptember | 87°F(31°C) | 72°F(22°C) | 3.7 in(93 mm) | 70% | 5.5 |
| OctOctober | 86°F(30°C) | 71°F(22°C) | 6.3 in(160 mm) | 70% | 4.8 |
| NovNovember | 83°F(29°C) | 69°F(21°C) | 4.6 in(117 mm) | 71% | 4.0 |
| DecDecember | 81°F(27°C) | 67°F(19°C) | 5.0 in(127 mm) | 70% | 3.7 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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