Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Kahului features a tropical savanna climate (As).Temperatures typically range between 23 °C (73 °F) and 27 °C (80 °F) through the year, but rarely can drop to 16 °C (61 °F) or can rise to as high as 32 °C (89 °F).The average annual precipitation amounts to about 430 mm (16.9 inches) and receives 80 rainy days on the 1 mm (0.04 inches) threshold annually.Kahului enjoys an average of 3591 hours of sunshine throughout the year, and daylight varies from 10 hours 52 minutes to 13 hours 22 minutes per day.
The warmest months in Kahului are July, August and September, with daily mean temperatures ranging from 26 to 27 °C (80 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 23 to 23 °C (73 - 74 °F) throughout the day. On average each year, Kahului experiences 294 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 28°C (83°F) | 28°C (83°F) | 29°C (84°F) | 29°C (84°F) | 31°C (88°F) | 31°C (88°F) | 31°C (88°F) | 31°C (89°F) | 32°C (89°F) | 31°C (88°F) | 31°C (87°F) | 29°C (85°F) |
Mean maximum | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) | 28°C (83°F) | 29°C (85°F) | 30°C (86°F) | 30°C (87°F) | 30°C (87°F) | 31°C (88°F) | 30°C (87°F) | 30°C (86°F) | 28°C (83°F) |
Average high | 26°C (79°F) | 25°C (78°F) | 26°C (79°F) | 27°C (80°F) | 28°C (82°F) | 29°C (84°F) | 29°C (85°F) | 29°C (85°F) | 30°C (85°F) | 29°C (84°F) | 28°C (82°F) | 26°C (80°F) |
Daily mean | 23°C (74°F) | 23°C (73°F) | 23°C (74°F) | 24°C (75°F) | 25°C (77°F) | 26°C (79°F) | 26°C (80°F) | 27°C (80°F) | 27°C (80°F) | 26°C (79°F) | 25°C (77°F) | 24°C (75°F) |
Average low | 21°C (70°F) | 20°C (69°F) | 21°C (70°F) | 22°C (72°F) | 23°C (73°F) | 24°C (75°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (75°F) | 23°C (73°F) | 22°C (71°F) |
Mean minimum | 20°C (67°F) | 18°C (64°F) | 19°C (67°F) | 20°C (69°F) | 20°C (69°F) | 23°C (73°F) | 23°C (74°F) | 23°C (74°F) | 23°C (74°F) | 22°C (72°F) | 21°C (70°F) | 20°C (68°F) |
Minimum | 19°C (66°F) | 16°C (61°F) | 18°C (64°F) | 19°C (66°F) | 19°C (66°F) | 22°C (72°F) | 22°C (73°F) | 22°C (72°F) | 23°C (73°F) | 21°C (70°F) | 19°C (67°F) | 18°C (65°F) |
Compare temperature, precipitation, sunshine, UV index in Kahului, Hawaii, United States with other places around the world.
Kahului usually has the most precipitation in February, March and April, with an average of 9 rainy days and 59 mm (2.3 inches) of precipitation per month.The driest months in Kahului are June, July and September. On average, 17 mm (0.7 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 32 (1.3) | 75 (2.9) | 52 (2.0) | 49 (1.9) | 36 (1.4) | 11 (0.4) | 23 (0.9) | 25 (1.0) | 17 (0.7) | 40 (1.6) | 25 (1.0) | 45 (1.8) |
Average precipitation days (≥ 1 mm) | 5 | 10 | 10 | 9 | 6 | 2 | 4 | 5 | 4 | 7 | 7 | 11 |
The sunniest months in Kahului are June, July and August, when the sun shines an average of 11 hours 9 minutes a day.Least sunny months in Kahului: January, February and December receive an average of 8 hours 8 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 221 | 254 | 289 | 310 | 334 | 342 | 348 | 335 | 316 | 300 | 271 | 263 |
Mean daily daylight hours | 11h 0m | 11h 27m | 12h 2m | 12h 38m | 13h 7m | 13h 22m | 13h 14m | 12h 47m | 12h 13m | 11h 37m | 11h 7m | 10h 52m |
Kahului experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 13 - 13, which corresponds to the Extreme category of sun exposure.January, November and December are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 8. For more detailed information, check out our hourly Kahului UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 7 | 10 | 11 | 12 | 12 | 13 | 13 | 13 | 12 | 11 | 8 | 8 |