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Sun-overhead phenomenon to occur across 77 Thai provinces

Sun-overhead phenomenon to occur across 77 Thai provinces

Provided by Nation.

The astronomical phenomenon known as the “sun overhead” will take place in 77 provinces across Thailand this year, beginning in Yala’s Betong district on Friday.

According to the National Astronomical Research Institute of Thailand (NARIT), the sun will pass directly overhead, making outdoor objects appear shadowless.

While direct sunlight may raise temperatures, other factors such as monsoons, rainfall and accumulated heat also influence the overall climate.

In Thailand, the first occurrence of the phenomenon begins today in Betong district of Yala province at 12.19pm and will conclude in Mae Sai, Chiang Rai, at 12.17pm on May 22.

Thanks to its tropical location between 5-20 degrees north latitude, Thailand experiences this event twice a year.

Here are some provinces where the sun-overhead phenomenon can be observed:

First phenomenon (April-May)


Princess Sirindhorn AstroPark, Chiang Mai: May 15, 12.21pm
Lampang: May 12, 12.18pm
Nakhon Sawan: May 3, 12.16pm
Lopburi: April 30, 12.15pm
Bangkok: April 27, 12.15pm
Chonburi: April 25, 12.14pm
Chalermprakhiat Astronomical Observatory, Chachoengsao: April 26, 12.13pm
Chalermprakhiat Astronomical Observatory, Nakhon Ratchasima: April 30, 12.09pm
Ubon Ratchathani: May 1, 11.58am
Chalermprakhiat Astronomical Observatory, Khon Kaen: May 7, 12.09pm.
Sakon Nakhon: May 8, 12.00pm
Udon Thani: May 9, 12.05pm
Mae Sai district, Chiang Rai: May 9, 12.17pm




Second phenomenon (July-September)


Princess Sirindhorn AstroPark, Chiang Mai: July 28, 12.31pm
Lampang: July 31, 12.29pm
Mae Sai district, Chiang Rai: July 21, 12.27pm
Udon Thani: August 3, 12.15pm
Sakon Nakhon: August 4, 12.10pm
Chalermprakhiat Astronomical Observatory, Khon Kaen: August 6, 12.15pm
Nakhon Sawan: August 9, 12.25pm
Lopburi: August 12, 12.23pm
Bangkok: August 16, 12.22pm
Ubon Ratchathani: August 11, 12.06pm
Chalermprakhiat Astronomical Observatory, Nakhon Ratchasima: August 12, 12.17pm
Chalermprakhiat Astronomical Observatory, Chachoengsao: August 16, 12.19pm
Chonburi: August 17, 12.20pm
Phuket: September 2, 12.26pm
Chalermprakhiat Astronomical Observatory, Songkhla: September 4, 12.17pm
Betong district, Yala: September 7, 12.14pm


For more information on the sun overhead phenomenon in Thailand, please visit https://www.narit.or.th/Sun-Overhead-TH-2568

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