May weather and diving conditions from Thailand Liveaboards. Similans and Phuket liveaboard scuba diving with your personal Thailand liveaboard diving adviser.
Welcome to May weather and diving conditions from Thailand Liveaboards (thailand-scuba.com), liveaboard scuba diving Similans Thailand

May Weather and Diving

May 2019 - 2018 - 2017 - 2016 - 2015 - 2014 - 2013 - 2012 - 2011 - 2010 - 2009

After an excellent May 2018 also May 2019 was very nice: 8 completely sunny days, about average, and 21 partly sunny days, way more than average and only 2 overcast days. So all in all it was a very nice May: many sunny days, and not many days with some rain during the day, and that rain fell mostly early morning, a few days with rain in the evening and especially at night and just 1 rainy day.
The wind was about average this May, with 25 really calm days and only 6 days with a moderate wind.
Also the temperature was about average for this time of year, with an average temperature of 33.0 degrees Centigrade.

In 2011 we were on two days not able to dive in the Shark Point area, in 2012 we could not safely reach Racha Noi on one day and on one day we were limited in our dive destinations to Racha Yai, in 2013 on one day we could not reach Racha Noi. In 2014 and 2015 all destinations were possible every day of the month and in 2016 on two days we cancelled all diving, on four days we were limited to Racha Yai and on one day we could not dive in the Shark Point area, all at the end of the month. In 2017 we had one day where we could only dive at Racha Yai, one where we could not go to Racha Noi and one where Racha Noi and the King Cruiser/Shark Point area were not safe. In 2018 we could dive everywhere on all days, we even managed to get a few nice dives in at Kata Beach, this year we had just 2 days where we could not dive at the King Cruiser wreck or Shark Point area, and again we managed to get a few days diving at Kata Beach in.
The Similans and Richelieu Rock national parks are closed, to re-open again on 15 October 2019. Diving at our housereef in Kata will resume again in November.

 Sun  2019  2018  2017  2016  2015  2014  2013  2012  2011  2010  2009
 Sunny days, dry  6  6  5  8  8  9  8  1  8  9  7
 Sunny days, rain in the evening  2  7  2  2  3  1  2  2  6  2  1
 Partially sunny/cloudy, dry  10  3  4  8  6  7  7  3  5  7  3
 Partially sunny/cloudy, rain in the evening  5  5  3  2  4  4  4  2  0  2  2
 Partially sunny/cloudy, some rain during the day  6  6  9  1  9  5  6  13  10  6  9
 Overcast days, dry  0  0  0  0  0  2  0  0  1  2  1
 Overcast days with rain in the evening  0  2  1  0  0  0  0  0  0  1  0
 Overcast days with some rain during the day  1  1  5  1  1  2  0  7  1  2  4
 Overcast, wet days  1  1  2  8  0  1  4  3  0  0  4
 Wind  2019  2018  2017  2016  2015  2014  2013  2012  2011  2010  2009
 Days without wind or with a slight breeze  25  30  22  23  29  28  29  11  18  30  29
 Days with a moderate or strong wind  6  1  9  8  2  3  2  20  13  1  2
 Temperature  2019  2018  2017  2016  2015  2014  2013  2012  2011  2010  2009
 Outside temperature (centigrade)  28-36  27-35  28-34  29-36  29-34  31-35  28-35  28-34  31-36  32-38  29-37
 Average temperature (centigrade)  33.0  33.0  31.7  32.8  32.4  33.7  32.7  31.7  33.4  36.8  32.8

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