Annual Rainfall for Poipu Beach The wettest month in Poipu Beach is March with 22cm of rain and June has the most days of rain with 24.7 days with some rain, a very wet time to visit the beach. The month with the least sunshine days is August (2.9 days). We did not smooth the data, so for example, our daily temperature line will have some randomness due to the fact that weather is random in the first place. The month with the highest atmospheric pressure is April (30.07"Hg). However, it has been unusually rainy this year with flash flooding. I could go on and on as we truly love kauai. Humidity June through August, October and December, with an average relative humidity of 77%, are the most humid months in Poipu. We are visiting Kauai over Christmas this year and would like to take a boat tour of the Napali Coast. google_ad_height = 60; From 1994 to 2006, the course played host to the annual PGA Grand Slam of Golf, one of the most prestigious tournaments in the golf world. That is true of any destination, not just Kauai. In February, the average temperature is 21.8 C | 71.3 F. When is the sunrise / sunset in August in Poipu? Weather patterns can be an important part of deciding when to plan your Kauai vacation. It should be noted an improvement from the previous month since in march it receives an average of 5.9in of rainfall over 7 days. Your email address will not be published. You can swim year round in Hawaii. In all those visits, weve only experienced one rainy day that ruined our plans. I hope and expect youll see more sun that what the forecast is showing. Some areas are drier than others. The average temperature in Poipu in December for a typical day ranges from a high of 77F (25C) to a low of 74F (23C). The data shown is the historic average rainfall and maximum temperatures for each month. This fantastic shot at the Kalalau Valley was captured by reader Peter Lazenby of Nanaimo, British Columbia. The average annual temperature in Poipu is 23.7 C | 74.6 F. The month with the lowest relative humidity is January (75%). In Poipu in June, there's a 4% chance of rain on an average day. Unfortunately, your guess is as good as ours. Ive been too both. At night you would most likely require a fan. Anecdotally, we went to Kauai in September. The weather has always been consistently sunny with occasional rain. Your email address will not be published. Ps. Between 2014 and 2021, monthly rainfall peaked in December 2015 at approximately 217 millimeters. The annual average precipitation at Poipu is 9.99 Inches. Do you plan Hawaii vacation activities before your trip or just book them when you get there? Some of our partners may process your data as a part of their legitimate business interest without asking for consent. //-->,