Kapaa Weather Forecast 15 Days, Weather in Kapaa Today
Current weather conditions and 15 day weather forecast for Kapaa, Hawaii, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Kapaa
| 17 September 2026 Thursday 25.7 ° C / 78.3°F  Patchy rain nearby |
Feels Like : 26.3 ° C / 79.3°F Humidity : % 86 Pressure : 1016 mb Wind Speed : 27.7 kmph / 17.2 miles from NE  Visibility : 9 km Precipitation (rainfall) : 0.44 mm Cloud (%) : 71 |
15 day weather forecast for Kapaa, HI, USA
Weather Forecast for next 15 Days for Kapaa including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Kapaa, Hawaii state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 17 September 2026 Thursday | Patchy rain nearby |
25.6 ° C (78.2°F) |
26 ° C (78.7°F) |
25.8 ° C (78.4°F) |
% 86 | 87% | 9.3 | Sunrise:06:24 AM Sunset: 06:39 PM |
Moonrise:12:52 PM Moonset: 11:34 PM Moon Phase ( First Quarter ) |
|
| 18 September 2026 Friday | Patchy rain nearby |
25.2 ° C (77.3°F) |
26.1 ° C (79.1°F) |
25.7 ° C (78.3°F) |
% 82 | 86% | 10.1 | Sunrise:06:25 AM Sunset: 06:38 PM |
Moonrise:01:45 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 19 September 2026 Saturday | Patchy rain nearby |
25.2 ° C (77.4°F) |
26.4 ° C (79.5°F) |
25.9 ° C (78.6°F) |
% 80 | 73% | 10 | Sunrise:06:25 AM Sunset: 06:37 PM |
Moonrise:02:33 PM Moonset: 12:28 AM Moon Phase ( First Quarter ) |
|
| 20 September 2026 Sunday | Patchy rain nearby |
25 ° C (77°F) |
26.2 ° C (79.2°F) |
25.8 ° C (78.4°F) |
% 80 | 73% | 10.4 | Sunrise:06:25 AM Sunset: 06:36 PM |
Moonrise:03:16 PM Moonset: 01:23 AM Moon Phase ( Waxing Gibbous ) |
|
| 21 September 2026 Monday | Patchy rain nearby |
25.4 ° C (77.7°F) |
26.1 ° C (78.9°F) |
25.8 ° C (78.5°F) |
% 80 | 66% | 7 | Sunrise:06:25 AM Sunset: 06:35 PM |
Moonrise:03:55 PM Moonset: 02:17 AM Moon Phase ( Waxing Gibbous ) |
|
| 22 September 2026 Tuesday | Patchy rain nearby |
25.4 ° C (77.7°F) |
26.2 ° C (79.1°F) |
25.7 ° C (78.3°F) |
% 86 | 87% | 6 | Sunrise:06:26 AM Sunset: 06:34 PM |
Moonrise:04:29 PM Moonset: 03:10 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 September 2026 Wednesday |  Light rain shower |
25.4 ° C (77.7°F) |
25.9 ° C (78.5°F) |
25.6 ° C (78°F) |
% 88 | 90% | 6 | Sunrise:06:26 AM Sunset: 06:33 PM |
Moonrise:05:02 PM Moonset: 04:01 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 September 2026 Thursday |  Moderate or heavy rain shower |
24.8 ° C (76.6°F) |
25.4 ° C (77.7°F) |
25.1 ° C (77.2°F) |
% 94 | 94% | 6 | Sunrise:06:26 AM Sunset: 06:32 PM |
Moonrise:05:33 PM Moonset: 04:52 AM Moon Phase ( Full Moon ) |
|
| 25 September 2026 Friday | Moderate or heavy rain shower |
24.5 ° C (76.1°F) |
25.3 ° C (77.6°F) |
24.9 ° C (76.9°F) |
% 95 | 94% | 6 | Sunrise:06:27 AM Sunset: 06:31 PM |
Moonrise:06:04 PM Moonset: 05:42 AM Moon Phase ( Full Moon ) |
|
| 26 September 2026 Saturday | Light rain shower |
25.6 ° C (78.1°F) |
26.7 ° C (80.1°F) |
26.4 ° C (79.5°F) |
% 87 | 89% | 6 | Sunrise:06:27 AM Sunset: 06:30 PM |
Moonrise:06:35 PM Moonset: 06:33 AM Moon Phase ( Full Moon ) |
|
| 27 September 2026 Sunday | Patchy rain nearby |
25.8 ° C (78.4°F) |
26.3 ° C (79.3°F) |
26.1 ° C (78.9°F) |
% 86 | 88% | 6 | Sunrise:06:27 AM Sunset: 06:29 PM |
Moonrise:07:09 PM Moonset: 07:25 AM Moon Phase ( Waning Gibbous ) |
|
| 28 September 2026 Monday | Patchy rain nearby |
25.5 ° C (77.9°F) |
25.9 ° C (78.6°F) |
25.7 ° C (78.3°F) |
% 81 | 81% | 6 | Sunrise:06:27 AM Sunset: 06:28 PM |
Moonrise:07:46 PM Moonset: 08:20 AM Moon Phase ( Waning Gibbous ) |
|
| 29 September 2026 Tuesday | Patchy rain nearby |
25.2 ° C (77.3°F) |
25.7 ° C (78.2°F) |
25.3 ° C (77.6°F) |
% 79 | 72% | 6 | Sunrise:06:28 AM Sunset: 06:27 PM |
Moonrise:08:27 PM Moonset: 09:18 AM Moon Phase ( Waning Gibbous ) |
|
| 30 September 2026 Wednesday | Patchy rain nearby |
25 ° C (76.9°F) |
25.6 ° C (78.1°F) |
25.3 ° C (77.5°F) |
% 76 | 74% | 7 | Sunrise:06:28 AM Sunset: 06:26 PM |
Moonrise:09:15 PM Moonset: 10:18 AM Moon Phase ( Waning Gibbous ) |
|
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