Kailua Kona Temperatures: Averages by Month
The numbers here tell you how hot and cold the weather usually is in Kailua Kona, Hawaii during each month of the year.
The average high and low temperatures are listed below monthly and annually for this popular destination on the Big Island of Hawaii, in both degrees Fahrenheit and Celsius.
Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above a given temperature.
To find out how often it rises over 70, 80 or 90 °F each month in Kailua Kona, scroll down farther.
The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.
| High °F | Low °F | High °C | Low °C | |
|---|---|---|---|---|
| 82 | 68 | January | 28 | 20 |
| 82 | 69 | February | 28 | 20 |
| 82 | 70 | March | 28 | 21 |
| 84 | 71 | April | 29 | 22 |
| 84 | 73 | May | 29 | 23 |
| 85 | 74 | June | 30 | 23 |
| 86 | 75 | July | 30 | 24 |
| 87 | 76 | August | 31 | 24 |
| 87 | 75 | September | 31 | 24 |
| 86 | 74 | October | 30 | 24 |
| 85 | 72 | November | 29 | 22 |
| 82 | 70 | December | 28 | 21 |
| 85 | 72 | Year | 29 | 22 |
| High °F | Low °F | High °C | Low °C | |
|---|---|---|---|---|
| 81 | 69 | January | 27 | 20 |
| 82 | 68 | February | 28 | 20 |
| 82 | 70 | March | 28 | 21 |
| 83 | 71 | April | 28 | 22 |
| 84 | 73 | May | 29 | 23 |
| 85 | 74 | June | 30 | 23 |
| 86 | 75 | July | 30 | 24 |
| 87 | 76 | August | 31 | 24 |
| 87 | 75 | September | 31 | 24 |
| 86 | 75 | October | 30 | 24 |
| 84 | 72 | November | 29 | 22 |
| 82 | 70 | December | 28 | 21 |
| 84 | 72 | Year | 29 | 22 |
Days of Hot Weather in Kailua Kona
With its excellent weather, Kona basks in 80-degree temperatures year round. Normally all but five days annually have highs in the 80s Fahrenheit. Another seven days a year on average reach 90 degrees. Temperatures as high as 100 °F (38 °C) are not expected here.
Most nights from December to early March cool down to the 60s (below 21 °C). Later in the year, nights remain warmer. From June to October it's uncommon for the thermometer to drop below 70 °F.
| 70 °F 21 °C |
80 °F 27 °C |
90 °F 32 °C | |
|---|---|---|---|
| January | 31 | 28 | 0 |
| February | 28 | 24 | 0 |
| March | 31 | 29 | 0 |
| April | 30 | 29 | 0 |
| May | 31 | 31 | 0 |
| June | 30 | 30 | 0 |
| July | 31 | 31 | 1 |
| August | 31 | 31 | 2 |
| September | 30 | 30 | 2 |
| October | 31 | 31 | 1 |
| November | 30 | 30 | 0 |
| December | 31 | 30 | 0 |
| Year | 365 | 353 | 7 |
References
Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.
NOAA National Centers for Environmental Information (NCEI). Climate Normals.