Honolulu Weather in March
United States · Tropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
March in Honolulu sees average temperatures ranging from a low of 20.3°C (68.5°F) to a high of 25.2°C (77.4°F), with a mean of 22.4°C (72.3°F). Compared to the annual average of 24.1°C (75.4°F), this month is 1.7°C cooler than the yearly norm. Precipitation averages 66.5mm, making it approximately 28.0mm wetter than the monthly average of 39.0mm. This is the wettest month of the year, with 66.5mm of precipitation and around 23.8 rainy days. The city receives an average of 10.4 hours of sunshine per day during March, with relative humidity averaging 75.1%. Wind speeds reach an average maximum of 23.1 km/h. For travelers, this month offers a temperature experience in Honolulu, with wetter-than-average conditions compared to the rest of the year.
Honolulu sounds like a year-round summer, but the rain patterns matter. I packed for beaches in November and got three wet days — the windward side gets 4x the rain of Waikiki. The sweet spot is April-May: 26°C, low rain, fewer tourists. December-March brings the big surf and whale season, plus occasional showers. Pack reef-safe sunscreen (mandatory by law), rash guard for snorkeling, and a light rain shell for windward trips. Summer (June-August) is hotter and more humid but trade winds keep it manageable. Skip spring break crowds in March — Waikiki gets packed.
March vs Adjacent Months
| Metric | February | March | April |
|---|---|---|---|
| Mean Temp | 22.2°C (72.0°F) | 22.4°C (72.3°F) | 23.1°C (73.6°F) |
| Rainfall | 41.5mm | 66.5mm | 49.7mm |
| Sunshine | 10.4 hrs | 10.4 hrs | 11.5 hrs |
| Humidity | 72.2% | 75.1% | 73.2% |
| Wind | 24.2 km/h | 23.1 km/h | 23.1 km/h |
| Rainy Days | 17.2 | 23.8 | 23.2 |
Seasonal Context
March falls in Spring in the Northern Hemisphere. Spring is a transitional season with temperatures rising from winter lows. For travelers visiting Honolulu in March, the data indicates favorable conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Honolulu in March?
The average temperature in Honolulu during March ranges from 20.3°C (68.5°F) to 25.2°C (77.4°F), with a mean of 22.4°C (72.3°F).
How much does it rain in Honolulu in March?
Honolulu receives an average of 66.5mm of precipitation in March, spread across approximately 23.8 rainy days. This is the wettest month of the year.
What should I pack for Honolulu in March?
Based on March weather data, pack layers including light jackets and t-shirts, plus an umbrella.
Is March a good time to visit Honolulu?
March is a good time to visit Honolulu, with comfortable temperatures and manageable rainfall. However, it is the wettest month — plan indoor activities and pack rain gear.
Other Months for Honolulu
Cities with Similar March Climate (Tropical)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 21.31°, -157.86°. Timezone: Pacific/Honolulu. Last updated: 2026-07-30.