Youll find three of the best snorkeling spots on Kauai on the north shore: Napali Coast Tours that leave from Hanalei (summer only), Napali Coast Tours that leave from Port Allen (year-round). From what I have been reading August is the hottest month. However, it has been unusually rainy this year with flash flooding. Monthly: 1981-2010 normals History: 2008-2019 The interior of the island can average 200+ inches of rain in some years! We've collected the weather data for Poipu during all other months of the year too: Weather data for Poipu was collected from the MERRA-2 project from NASA, which used a climate model combined with historical data from weather stations around the world to estimate what the conditions were like for every point on the Earth. Start-up Hub; Incubation centre; Funding your idea; Maker space; Trading Lab. We cover Hawaii travel tips, news, and reviews for planning your perfect Hawaiian vacation. Overcast. Hardly anyone on this beach. Kuhio Shores Condos: Condo #406 - Great buy! Before we dive into the details, bear in mind that weather history is a fairly descent predictor of future weather. Best wishes! - See 2 893 traveller reviews, 1,874 candid photos, and great deals for Ko`a Kea Resort On Poipu Beach at Tripadvisor. The temperature in September averages 25.4 C | 77.7 F. Get inspired for your trip to Poipu with our curated itineraries that are jam-packed with popular attractions everyday! The darker greener areas experience the most rainfall. Save my name, email, and website in this browser for the next time I comment. See more advice on where to stay on Kauai: https://www.govisithawaii.com/kauai-where-to-stay/. Unnacceptable. The most windy month in Poipu Beach is March when the average maximum windspeed is 34kmh and the average wind speed is 22kmh. Depends on what your looking for. Rainfall In July, in Poipu, the rain falls for 20.9 days. Poipu in June Average temperature: 24 (76) Average high temperature: 26 (78) Average low temperature: 23 (74) Average humidity: 77% Average sunny days: 5 days Average rainfall: 43mm (2") over 18 days 5 days of pure sunshine 18 days of showers or rain For comparison, the hottest month in Poipu, September, has days with highs of 81F (27C) and lows of 78F (26C). Why do you prefer December? Lets start with the high and low temperatures. Get inspired for your trip to Poipu with our curated itineraries that are jam-packed with popular attractions everyday! The average day in Poipu during March has 12.0 hours of daylight, with sunrise at 6:45 AM and sunset at 6:46 PM. (Note that some waterfalls dry up or are only a trickle after a dry summer.) When is the sunrise / sunset in August in Poipu? Occasionally, Kona winds from the southwest make the atmosphere feel hot and sticky. In more common terms of how much that is, some would describe it as heavy rain.