Hawaii weather in May: Statewide normals and every place, NOAA 1991-2020
In May, Hawaii's statewide normal high is 74°F and normal low 59°F; normal highs run from 71°F in Kula to 87°F in Kahului (NOAA 1991-2020 normals).
- Statewide normal high
- 74°FMay, 1991-2020
- Statewide normal low
- 59°FMay, 1991-2020
- Statewide normal precipitation
- 4.08 inMay
- Warmest place
- 87°Fnormal high, Kahului
- Coolest place
- 71°Fnormal high, Kula
Where is Hawaii warmest and wettest in May?
Kahului has the warmest May afternoons (87°F) and Kula the coolest (71°F). Hilo gets the most precipitation (6.99 in) and Kailua the least (0.64 in).
Statewide, May averaged 66.5°F in 2021, 66.9°F in 2022, 65.8°F in 2023, 66.5°F in 2024, 66.5°F in 2025, 66.5°F in 2026, against a 1991-2020 normal of 66.2°F.
| Place | High | Low | Precip. | Snow |
|---|---|---|---|---|
| Honolulu | 85°F | 72°F | 0.82 | – |
| Hilo | 81°F | 67°F | 6.99 | – |
| Kaneohe | 81°F | 72°F | 1.32 | 0.0 |
| Kahului | 87°F | 68°F | 0.71 | – |
| Kailua | 84°F | 73°F | 0.64 | – |
| Wahiawa | 79°F | 65°F | 4.33 | 0.0 |
| Ewa Beach | 84°F | 67°F | 1.02 | 0.0 |
| Makaha | 82°F | 68°F | 1.64 | 0.0 |
| Lihue | 82°F | 71°F | 2.18 | 0.0 |
| Kula | 71°F | 56°F | 1.48 | 0.0 |
| Waimanalo | 81°F | 70°F | 2.43 | 0.0 |
| Kilauea | 80°F | 68°F | 4.79 | 0.0 |
| Waimea | 84°F | 67°F | – | – |
| Princeville | 83°F | 67°F | 5.10 | 0.0 |
| Hana | 80°F | 68°F | 5.43 | – |
| Paauilo | 80°F | 61°F | 6.24 | 0.0 |
| Kapalua | 83°F | 69°F | 1.49 | 0.0 |
| Makena | 84°F | 66°F | 1.08 | 0.0 |
| Barking Sands | 84°F | 69°F | 1.19 | 0.0 |
| Ewa Kalaeloa Airport | 85°F | 69°F | 0.97 | – |
| Glenwood #2 55.4 | 75°F | 59°F | 15.04 | 0.0 |
| Haleakala Ranger Station 338 | 63°F | 46°F | 2.44 | 0.0 |
| Hawaii Vol National Park Headquarters 54 | 71°F | 53°F | 6.46 | 0.0 |
| Kahoolawe 499.6 | 75°F | 66°F | 1.43 | 0.0 |
| Kanalohuluhulu 1075 | 69°F | 52°F | 3.25 | 0.0 |
| Kapaka Farm 904.1 | 82°F | 70°F | 3.35 | 0.0 |
| Ke-Ahole Point 68.13 | 83°F | 71°F | – | – |
| Kihalani 132.5 | 78°F | 65°F | 7.79 | 0.0 |
| Kii-Kahuku 911 | 80°F | 70°F | 2.02 | 0.0 |
| Kula Hospital 267 | 71°F | 55°F | 2.79 | 0.0 |
| Lanai Airport 656 | 80°F | 63°F | 0.73 | 0.0 |
| Mahaulepu 941.1 | 86°F | 70°F | – | – |
| Makaweli 965 | 83°F | 69°F | 1.37 | 0.0 |
| Manoa Lyon Arbo 785.2 | 78°F | 67°F | 9.32 | 0.0 |
| Mauna Loa (5 mi NNE) | 56°F | 39°F | 0.60 | – |
| Molokai Airport | 83°F | 69°F | 1.15 | 0.0 |
| Ohe'o 258.6 | 80°F | 70°F | 4.72 | 0.0 |
| Opihihale #2 24.1 | 75°F | 61°F | 3.24 | 0.0 |
| Poamoho Experiment Farm 855.2 | 80°F | 66°F | 1.79 | – |
| Puu Manawahua 725.6 | 79°F | 61°F | – | – |
| Puu-O-Hoku Ranch 542.1 | 80°F | 68°F | – | – |
| Puukohola Heiau 98.1 | 86°F | 72°F | 0.54 | 0.0 |
| Puukolii 457.1 | 81°F | 67°F | 1.22 | 0.0 |
| Sea Mountain 12.15 | 82°F | 68°F | 1.41 | 0.0 |
| South Kona 2 2.32 | 76°F | 58°F | 1.43 | 0.0 |
| Waihee 837.5 | 81°F | 68°F | 4.91 | 0.0 |
| Waikiki 717.2 | 85°F | 71°F | 1.02 | 0.0 |
| Waimea Valley 892.2 | 83°F | 67°F | 3.63 | 0.0 |
Source: NOAA NCEI nClimDiv statewide normals; NOAA NCEI 1991-2020 monthly normals for each station.