Winter
Dec → Feb26°
nights 19 to 20°
- 9 rainy days · 94 mm
When is the best time to visit Kauai?
- Jan26°not recommended
- Feb26°not recommended
- Mar26°fair
- Apr27°recommended
- May28°recommended
- Jun29°recommended
- Jul29°fair
- Aug30°fair
- Sep30°recommended
- Oct29°recommended
- Nov27°fair
- Dec26°not recommended
RecommendedFairNot recommended· afternoon temperature
The weather in Kauai, month by month
The table of averages, month by month
| Month | High | Low | Rainfall | Rainy days | Best |
|---|---|---|---|---|---|
| January | 26° | 19° | 71 mm | 7 d | |
| February | 26° | 19° | 92 mm | 8 d | |
| March | 26° | 20° | 143 mm | 10 d | |
| April | 27° | 21° | 52 mm | 9 d | ✓ |
| May | 28° | 22° | 55 mm | 8 d | ✓ |
| June | 29° | 23° | 46 mm | 10 d | ✓ |
| July | 29° | 24° | 44 mm | 11 d | |
| August | 30° | 24° | 59 mm | 10 d | |
| September | 30° | 24° | 55 mm | 10 d | ✓ |
| October | 29° | 23° | 83 mm | 10 d | ✓ |
| November | 27° | 22° | 102 mm | 11 d | |
| December | 26° | 20° | 118 mm | 11 d |
The four seasons in Kauai, in figures
What the 2015-2024 averages (Lihue (Kauai)) show, season by season, to compare at a glance instead of reading twelve rows of a table.
Spring
Mar → May26 to 28°
nights 20 to 22°
- 9 rainy days · 83 mm
Summer
Jun → Aug29 to 30°
nights 23 to 24°
- 10 rainy days · 50 mm
Autumn
Sep → Nov27 to 30°
nights 22 to 24°
- 10 rainy days · 80 mm
Book early for April to June and September to October
The timing is right, so it is right for everyone: in these months the best places to stay and the small-group tours go first. Here is where to start.
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What to do in Kauai, month by month
| Activity | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hiking |
favourablewith compromisesunfavourable
Towns & culture: good conditions all twelve months.
- Hiking: January, February, April, May
Grid derived from the climate averages (temperature, rainfall), not from an opinion.
Travelling off-peak
Month by month, in detail
January
Not recommended26°19° at night
- 71 mm · 7 d
Low season, lower prices
February
Not recommended26°19° at night
- 92 mm · 8 d
Low season, lower prices
March
Fair26°20° at night
- 143 mm · 10 d
Low season, lower prices
April
Recommended27°21° at night
- 52 mm · 9 d
Busy, without the crush
May
Recommended28°22° at night
- 55 mm · 8 d
Busy, without the crush
June
Recommended29°23° at night
- 46 mm · 10 d
Busy, without the crush
July
Fair29°24° at night
- 44 mm · 11 d
Busy, without the crush
August
Fair30°24° at night
- 59 mm · 10 d
Busy, without the crush
September
Recommended30°24° at night
- 55 mm · 10 d
Busy, without the crush
October
Recommended29°23° at night
- 83 mm · 10 d
Busy, without the crush
November
Fair27°22° at night
- 102 mm · 11 d
Low season, lower prices
December
Not recommended26°20° at night
- 118 mm · 11 d
Quiet, then the holidays
Read the twelve months in detail
January. 26 °C in the afternoon and 19 °C at night. Rain stays light: 71 mm over 7 days. Low season: fewer people, lower prices.
February. 26 °C in the afternoon and 19 °C at night. Expect 8 days of rain in the month (92 mm). Low season: fewer people, lower prices.
March. 26 °C in the afternoon and 20 °C at night. Expect 10 days of rain in the month (143 mm). Low season: fewer people, lower prices.
April. 27 °C in the afternoon and 21 °C at night. Expect 9 days of rain in the month (52 mm). Busy season, without the crush.
May. 28 °C in the afternoon and 22 °C at night. Expect 8 days of rain in the month (55 mm). Busy season, without the crush.
June. 29 °C in the afternoon and 23 °C at night. Expect 10 days of rain in the month (46 mm). Busy season, without the crush.
July. 29 °C in the afternoon and 24 °C at night. Expect 11 days of rain in the month (44 mm). Busy season, without the crush.
August. 30 °C in the afternoon and 24 °C at night. Expect 10 days of rain in the month (59 mm). Busy season, without the crush.
September. 30 °C in the afternoon and 24 °C at night. Expect 10 days of rain in the month (55 mm). Busy season, without the crush.
October. 29 °C in the afternoon and 23 °C at night. Expect 10 days of rain in the month (83 mm). Busy season, without the crush.
November. 27 °C in the afternoon and 22 °C at night. Expect 11 days of rain in the month (102 mm). Low season: fewer people, lower prices.
December. 26 °C in the afternoon and 20 °C at night. Expect 11 days of rain in the month (118 mm). Quiet at the start of the month, then busier as the holidays approach.
Same season, other ideas
Their best time overlaps with this one: worth comparing before you book.
Frequently asked questions
When is the best time to visit Kauai?
April to June and September to October: over these months, average highs range from 27 to 30 °C, with 9 days of rain a month on average (2015-2024 averages, Lihue (Kauai)).
Which month should you avoid in Kauai?
December: it is the wettest of the months to avoid, with 118 mm over 11 days of rain on average over 2015-2024 at the reference point (Lihue (Kauai)).
What is the hottest month in Kauai?
August, with 30 °C on average in the afternoon and 24 °C at night. 2015-2024 averages (Lihue (Kauai)).
What is the coldest month in Kauai?
January, with 26 °C at best during the day and 19 °C at night. 2015-2024 averages (Lihue (Kauai)).
What is the driest month in Kauai?
July: 44 mm over 11 days of rain, against 143 mm in March, the wettest month.
When is the best time to hike in Kauai?
January, February, April, May: highs between 12 and 29 °C and no more than 9 days of rain a month on 2015-2024 averages (Lihue (Kauai)), the safest windows for walking.
Plan this trip
📒 The free printable Kauai guide: itinerary, map, where to sleep→
🧭 When to visit the American West: the country overview→
🗓️ Best time to visit: all our destinations→
Compare with other destinations
Photos: Christoph Strässler / CC BY-SA 2.0 (Wikimedia Commons) · Chait Goli / Pexels · Renan Bomtempo / Pexels · Jawed Karim / CC BY-SA 3.0 (Wikimedia Commons) · Robert Linsdell from St. Andrews, Canada / CC BY 2.0 (Wikimedia Commons) · Daderot. / CC BY-SA 3.0 (Wikimedia Commons)