Wedding weather data · USA
Wedding weather in Kauai
In Kauai, the driest months for a wedding are January and February, when rain falls on about 30% of days. The wettest is October, with rain on about 48% 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 ✦ | 30% | 4% | 9.4 | 70°F (21°C) | 62°F (17°C) | 9.6 h/day |
| February ✦ | 35% | 4% | 9.8 | 70°F (21°C) | 61°F (16°C) | 10.1 h/day |
| March | 40% | 5% | 12.5 | 70°F (21°C) | 61°F (16°C) | 11 h/day |
| April | 45% | 1% | 13.4 | 71°F (22°C) | 63°F (17°C) | 12 h/day |
| May | 42% | 3% | 13.1 | 74°F (23°C) | 64°F (18°C) | 12.7 h/day |
| June | 45% | 1% | 13.5 | 75°F (24°C) | 66°F (19°C) | 12.9 h/day |
| July | 48% | 1% | 14.7 | 77°F (25°C) | 67°F (20°C) | 12.9 h/day |
| August | 44% | 2% | 13.6 | 77°F (25°C) | 68°F (20°C) | 12.1 h/day |
| September | 47% | 1% | 14 | 77°F (25°C) | 68°F (20°C) | 11.2 h/day |
| October | 48% | 3% | 14.9 | 76°F (24°C) | 68°F (20°C) | 10.7 h/day |
| November | 44% | 4% | 13.3 | 73°F (23°C) | 66°F (19°C) | 10.5 h/day |
| December | 39% | 5% | 12.2 | 71°F (22°C) | 64°F (18°C) | 10 h/day |
Source: ERA5 reanalysis (Copernicus/ECMWF) via Open-Meteo open data, CC BY 4.0, daily data 1991–2020 for 22.10, -159.53. Rainy day ≥ 1 mm, heavy rain ≥ 10 mm. Climatology, not a forecast.
Best months for a wedding in Kauai
Weighing low rain odds with comfortable temperatures (roughly 18–29 °C / 65–84 °F highs), the best months for an outdoor wedding in Kauai are January and February.
When to be careful
October is the wettest month in Kauai: rain falls on about 48% of days, and 3% 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.
Kauai weather month by month
What a wedding day in Kauai usually looks like in each month, from 30 years of daily weather records.
Kauai weather in January
In January, it rains (1 mm or more) on 30% of days in Kauai, about 9.4 days in the month, and 4% of days bring heavy rain. Typical highs are 70°F (21°C), lows 62°F (17°C), with around 9.6 hours of sunshine a day. One of the driest months here: a good bet for an outdoor ceremony.
Kauai weather in February
In February, it rains (1 mm or more) on 35% of days in Kauai, about 9.8 days in the month, and 4% of days bring heavy rain. Typical highs are 70°F (21°C), lows 61°F (16°C), with around 10.1 hours of sunshine a day. One of the driest months here: a good bet for an outdoor ceremony.
Kauai weather in March
In March, it rains (1 mm or more) on 40% of days in Kauai, about 12.5 days in the month, and 5% of days bring heavy rain. Typical highs are 70°F (21°C), lows 61°F (16°C), with around 11 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Kauai weather in April
In April, it rains (1 mm or more) on 45% of days in Kauai, about 13.4 days in the month, and 1% of days bring heavy rain. Typical highs are 71°F (22°C), lows 63°F (17°C), with around 12 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Kauai weather in May
In May, it rains (1 mm or more) on 42% of days in Kauai, about 13.1 days in the month, and 3% of days bring heavy rain. Typical highs are 74°F (23°C), lows 64°F (18°C), with around 12.7 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Kauai weather in June
In June, it rains (1 mm or more) on 45% of days in Kauai, about 13.5 days in the month, and 1% of days bring heavy rain. Typical highs are 75°F (24°C), lows 66°F (19°C), with around 12.9 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Kauai weather in July
In July, it rains (1 mm or more) on 48% of days in Kauai, about 14.7 days in the month, and 1% of days bring heavy rain. Typical highs are 77°F (25°C), lows 67°F (20°C), with around 12.9 hours of sunshine a day. One of the wettest months here: plan a covered ceremony or a tent from the start.
Kauai weather in August
In August, it rains (1 mm or more) on 44% of days in Kauai, about 13.6 days in the month, and 2% of days bring heavy rain. Typical highs are 77°F (25°C), lows 68°F (20°C), with around 12.1 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Kauai weather in September
In September, it rains (1 mm or more) on 47% of days in Kauai, about 14 days in the month, and 1% of days bring heavy rain. Typical highs are 77°F (25°C), lows 68°F (20°C), with around 11.2 hours of sunshine a day. One of the wettest months here: plan a covered ceremony or a tent from the start.
Kauai weather in October
In October, it rains (1 mm or more) on 48% of days in Kauai, about 14.9 days in the month, and 3% of days bring heavy rain. Typical highs are 76°F (24°C), lows 68°F (20°C), with around 10.7 hours of sunshine a day. One of the wettest months here: plan a covered ceremony or a tent from the start.
Kauai weather in November
In November, it rains (1 mm or more) on 44% of days in Kauai, about 13.3 days in the month, and 4% of days bring heavy rain. Typical highs are 73°F (23°C), lows 66°F (19°C), with around 10.5 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Kauai weather in December
In December, it rains (1 mm or more) on 39% of days in Kauai, about 12.2 days in the month, and 5% of days bring heavy rain. Typical highs are 71°F (22°C), lows 64°F (18°C), with around 10 hours of sunshine a day. One of the driest months here: a good bet for an outdoor ceremony.
Frequently asked questions
What is the best month to get married in Kauai?
Based on 10 years of weather data, January is the driest month in Kauai, with rain on about 30% of days and average highs around 70°F (21°C). Overall, the best months for an outdoor wedding there are January and February.
What is the rainiest month in Kauai?
October is the rainiest month in Kauai: on average 14.9 days of the month see at least 1 mm of rain, and about 3% of days bring heavy rain.
Will it rain on my wedding day in Kauai?
Nobody can forecast your wedding day months ahead. What history shows is the chance of rain: in January it rains on about 30% of days in Kauai. Check your exact date with our free rain odds tool, then watch the real forecast from about 7 days out.