Hawaii weather in August: Statewide normals and every place, NOAA 1991-2020
In August, Hawaii's statewide normal high is 77°F and normal low 62°F; normal highs run from 76°F in Kula to 90°F in Kahului (NOAA 1991-2020 normals).
- Statewide normal high
- 77°FAugust, 1991-2020
- Statewide normal low
- 62°FAugust, 1991-2020
- Statewide normal precipitation
- 5.17 inAugust
- Warmest place
- 90°Fnormal high, Kahului
- Coolest place
- 76°Fnormal high, Kula
Where is Hawaii warmest and wettest in August?
Kahului has the warmest August afternoons (90°F) and Kula the coolest (76°F). Hilo gets the most precipitation (11.30 in) and Kahului the least (0.53 in).
Statewide, August averaged 68.9°F in 2021, 69.3°F in 2022, 69.6°F in 2023, 69.9°F in 2024, 70.0°F in 2025, 70.8°F in 2026, against a 1991-2020 normal of 69.5°F.
| Place | High | Low | Precip. | Snow |
|---|---|---|---|---|
| Honolulu | 89°F | 76°F | 0.84 | – |
| Hilo | 83°F | 70°F | 11.30 | – |
| Kaneohe | 84°F | 75°F | 1.42 | 0.0 |
| Kahului | 90°F | 72°F | 0.53 | – |
| Kailua | 87°F | 76°F | 0.54 | – |
| Wahiawa | 83°F | 68°F | 3.96 | 0.0 |
| Ewa Beach | 87°F | 71°F | 0.84 | 0.0 |
| Makaha | 86°F | 70°F | 0.74 | 0.0 |
| Lihue | 85°F | 75°F | 2.33 | 0.0 |
| Kula | 76°F | 59°F | 1.45 | 0.0 |
| Waimanalo | 85°F | 74°F | 1.97 | 0.0 |
| Kilauea | 83°F | 72°F | 4.51 | 0.0 |
| Waimea | 87°F | 70°F | – | – |
| Princeville | 86°F | 70°F | 6.29 | 0.0 |
| Hana | 83°F | 72°F | 5.99 | – |
| Paauilo | 83°F | 65°F | 6.73 | 0.0 |
| Kapalua | 86°F | 72°F | 1.37 | 0.0 |
| Makena | 87°F | 69°F | 1.21 | 0.0 |
| Barking Sands | 88°F | 73°F | 0.27 | 0.0 |
| Ewa Kalaeloa Airport | 89°F | 73°F | 0.62 | – |
| Glenwood #2 55.4 | 77°F | 62°F | 23.51 | 0.0 |
| Haleakala Ranger Station 338 | 66°F | 49°F | 2.17 | 0.0 |
| Hawaii Vol National Park Headquarters 54 | 74°F | 56°F | 5.91 | 0.0 |
| Kahoolawe 499.6 | 78°F | 69°F | 0.83 | 0.0 |
| Kanalohuluhulu 1075 | 73°F | 57°F | 2.26 | 0.0 |
| Kapaka Farm 904.1 | 85°F | 75°F | 3.25 | 0.0 |
| Ke-Ahole Point 68.13 | 86°F | 74°F | – | – |
| Kihalani 132.5 | 81°F | 67°F | 16.85 | 0.0 |
| Kii-Kahuku 911 | 83°F | 75°F | 2.00 | 0.0 |
| Kula Hospital 267 | 75°F | 58°F | 1.98 | 0.0 |
| Lanai Airport 656 | 83°F | 67°F | 0.37 | 0.0 |
| Mahaulepu 941.1 | 89°F | 73°F | – | – |
| Makaweli 965 | 87°F | 72°F | 0.72 | 0.0 |
| Manoa Lyon Arbo 785.2 | 80°F | 70°F | 12.66 | 0.0 |
| Mauna Loa (5 mi NNE) | 57°F | 41°F | 2.38 | – |
| Molokai Airport | 87°F | 73°F | 0.84 | 0.0 |
| Ohe'o 258.6 | 83°F | 73°F | 6.46 | 0.0 |
| Opihihale #2 24.1 | 78°F | 64°F | 3.40 | 0.0 |
| Poamoho Experiment Farm 855.2 | 86°F | 70°F | 1.48 | – |
| Puu Manawahua 725.6 | 83°F | 65°F | – | – |
| Puu-O-Hoku Ranch 542.1 | 84°F | 71°F | – | – |
| Puukohola Heiau 98.1 | 89°F | 75°F | 0.80 | 0.0 |
| Puukolii 457.1 | 85°F | 71°F | 0.90 | 0.0 |
| Sea Mountain 12.15 | 85°F | 71°F | 2.89 | 0.0 |
| South Kona 2 2.32 | 79°F | 60°F | 1.61 | 0.0 |
| Waihee 837.5 | 84°F | 72°F | 5.43 | 0.0 |
| Waikiki 717.2 | 88°F | 75°F | 0.73 | 0.0 |
| Waimea Valley 892.2 | 86°F | 70°F | 3.24 | 0.0 |
Source: NOAA NCEI nClimDiv statewide normals; NOAA NCEI 1991-2020 monthly normals for each station.