Wedding weather data · USA
Wedding weather in Oahu
In Oahu, the driest months for a wedding are June, July, and August, when rain falls on about 3% of days. The wettest is November, with rain on about 17% of days. Here is the full picture, month by month, from 10 years of daily weather records.
Rain odds and temperatures by month
| Month | Chance of a rainy day | Heavy rain | Rainy days | Avg high | Avg low | Sunshine |
|---|---|---|---|---|---|---|
| January | 16% | 2% | 4.9 | 76°F (24°C) | 70°F (21°C) | 10.6 h/day |
| February | 16% | 3% | 4.5 | 76°F (24°C) | 70°F (21°C) | 10.4 h/day |
| March | 14% | 3% | 4.4 | 76°F (24°C) | 70°F (21°C) | 10.5 h/day |
| April | 8% | 0% | 2.4 | 77°F (25°C) | 72°F (22°C) | 12.3 h/day |
| May | 7% | 1% | 2.3 | 79°F (26°C) | 73°F (23°C) | 12.8 h/day |
| June ✦ | 3% | 0% | 1 | 80°F (27°C) | 75°F (24°C) | 12.9 h/day |
| July ✦ | 3% | 0% | 1.1 | 81°F (27°C) | 76°F (24°C) | 12.9 h/day |
| August ✦ | 6% | 0% | 1.8 | 82°F (28°C) | 76°F (25°C) | 12.8 h/day |
| September | 7% | 1% | 2.2 | 82°F (28°C) | 76°F (25°C) | 11 h/day |
| October | 9% | 1% | 2.9 | 81°F (27°C) | 76°F (24°C) | 10.8 h/day |
| November | 17% | 2% | 5 | 79°F (26°C) | 74°F (23°C) | 10.5 h/day |
| December | 16% | 4% | 4.8 | 77°F (25°C) | 72°F (22°C) | 10.5 h/day |
Source: ERA5 reanalysis (Copernicus/ECMWF) via Open-Meteo open data, CC BY 4.0, daily data 1991–2020 for 21.28, -157.83. Rainy day ≥ 1 mm, heavy rain ≥ 10 mm. Climatology, not a forecast.
Best months for a wedding in Oahu
Weighing low rain odds with comfortable temperatures (roughly 18–29 °C / 65–84 °F highs), the best months for an outdoor wedding in Oahu are June, July, and August.
When to be careful
November is the wettest month in Oahu: rain falls on about 17% of days, and 2% of days bring heavy rain (10 mm or more). Book a solid backup if you marry then.
How to read these numbers
A "rainy day" is a day with at least 1 mm (0.04 in) of rain. A 30% chance means about 3 in 10 days in that month saw at least a little rain, often a short shower. For your exact date and venue, use our free rain odds tool.
Oahu weather month by month
What a wedding day in Oahu usually looks like in each month, from 30 years of daily weather records.
Oahu weather in January
In January, it rains (1 mm or more) on 16% of days in Oahu, about 4.9 days in the month, and 2% of days bring heavy rain. Typical highs are 76°F (24°C), lows 70°F (21°C), with around 10.6 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Oahu weather in February
In February, it rains (1 mm or more) on 16% of days in Oahu, about 4.5 days in the month, and 3% of days bring heavy rain. Typical highs are 76°F (24°C), lows 70°F (21°C), with around 10.4 hours of sunshine a day. One of the wettest months here: plan a covered ceremony or a tent from the start.
Oahu weather in March
In March, it rains (1 mm or more) on 14% of days in Oahu, about 4.4 days in the month, and 3% of days bring heavy rain. Typical highs are 76°F (24°C), lows 70°F (21°C), with around 10.5 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Oahu weather in April
In April, it rains (1 mm or more) on 8% of days in Oahu, about 2.4 days in the month, and 0% of days bring heavy rain. Typical highs are 77°F (25°C), lows 72°F (22°C), with around 12.3 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Oahu weather in May
In May, it rains (1 mm or more) on 7% of days in Oahu, about 2.3 days in the month, and 1% of days bring heavy rain. Typical highs are 79°F (26°C), lows 73°F (23°C), with around 12.8 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Oahu weather in June
In June, it rains (1 mm or more) on 3% of days in Oahu, about 1 days in the month, and 0% of days bring heavy rain. Typical highs are 80°F (27°C), lows 75°F (24°C), with around 12.9 hours of sunshine a day. One of the driest months here: a good bet for an outdoor ceremony.
Oahu weather in July
In July, it rains (1 mm or more) on 3% of days in Oahu, about 1.1 days in the month, and 0% of days bring heavy rain. Typical highs are 81°F (27°C), lows 76°F (24°C), with around 12.9 hours of sunshine a day. One of the driest months here: a good bet for an outdoor ceremony.
Oahu weather in August
In August, it rains (1 mm or more) on 6% of days in Oahu, about 1.8 days in the month, and 0% of days bring heavy rain. Typical highs are 82°F (28°C), lows 76°F (25°C), with around 12.8 hours of sunshine a day. One of the driest months here: a good bet for an outdoor ceremony.
Oahu weather in September
In September, it rains (1 mm or more) on 7% of days in Oahu, about 2.2 days in the month, and 1% of days bring heavy rain. Typical highs are 82°F (28°C), lows 76°F (25°C), with around 11 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Oahu weather in October
In October, it rains (1 mm or more) on 9% of days in Oahu, about 2.9 days in the month, and 1% of days bring heavy rain. Typical highs are 81°F (27°C), lows 76°F (24°C), with around 10.8 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Oahu weather in November
In November, it rains (1 mm or more) on 17% of days in Oahu, about 5 days in the month, and 2% of days bring heavy rain. Typical highs are 79°F (26°C), lows 74°F (23°C), with around 10.5 hours of sunshine a day. One of the wettest months here: plan a covered ceremony or a tent from the start.
Oahu weather in December
In December, it rains (1 mm or more) on 16% of days in Oahu, about 4.8 days in the month, and 4% of days bring heavy rain. Typical highs are 77°F (25°C), lows 72°F (22°C), with around 10.5 hours of sunshine a day. One of the wettest months here: plan a covered ceremony or a tent from the start.
Frequently asked questions
What is the best month to get married in Oahu?
Based on 10 years of weather data, June is the driest month in Oahu, with rain on about 3% of days and average highs around 80°F (27°C). Overall, the best months for an outdoor wedding there are June, July, and August.
What is the rainiest month in Oahu?
November is the rainiest month in Oahu: on average 5 days of the month see at least 1 mm of rain, and about 2% of days bring heavy rain.
Will it rain on my wedding day in Oahu?
Nobody can forecast your wedding day months ahead. What history shows is the chance of rain: in June it rains on about 3% of days in Oahu. Check your exact date with our free rain odds tool, then watch the real forecast from about 7 days out.