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Indicator · TLI ind_heat_days_35c

Annual Count of Days With Maximum Temperature ≥ 35°C

จำนวนวันต่อปีที่อุณหภูมิสูงสุด ≥ 35°C

AS OF 31 DEC 2024 days/yr ≥35°C (≥95°F) Weight 1

Source

NASA POWER (Thailand Meteorological Department reserved as ground-validation)

NASA satellite-and-reanalysis climate dataset; daily maximum-temperature grid covering all 77 Thai provinces. Refresh: monthly upstream (NASA POWER finalizes a rolling 60-day window); TLI re-pulls annually for the heat-days metric.

Goalposts

The 0-to-100 score for this indicator is normalized against fixed methodology goalposts. The values below define the band; click through to the methodology page for the framework that anchors them.

Score 100
60 days/yr ≥35°C (≥95°F)
Score 0
250 days/yr ≥35°C (≥95°F)
Direction
Lower is better
Anchor
Fitted to the Thai provincial distribution

Goalposts of 60 days and 250 days are fitted to the observed NASA POWER distribution for 2024. Highland northern provinces such as Mae Hong Son and Chiang Rai record 60 to 100 days at or above 35°C; the hottest central plain and northeast provinces (Nakhon Pathom 150, Suphan Buri 146) approach 200 to 250 in extreme years. Heat index is conceptually preferred but is not available consistently across the source grid.

Live distribution: 25 of 77 provinces clip at the score-100 ceiling .

Which Thai province leads on Annual Count of Days With Maximum Temperature ≥ 35°C?

25 Thai provinces share the maximum TLI score of 100/100 on Annual Count of Days With Maximum Temperature ≥ 35°C; the strongest by raw value are Phuket , Rayong , and Trat (raw values from 0 to 0 days/yr ≥35°C (≥95°F)). The bottom of the distribution is Nakhon Pathom (150.6 days/yr ≥35°C (≥95°F), score 52.3/100).

Coverage

77 of 77 Thai provinces. Median score: 84.9. Each province's score is normalized 0–100 against fixed goalposts; a higher score is more favorable.

Reading the columns. Raw value the actual measurement in days/yr ≥35°C (≥95°F). Score normalized 0–100 against fixed methodology goalposts (not a percentile). Lower is better. Why ties? 25 provinces share the score-100 ceiling because their raw values meet or exceed the upper goalpost. Provinces beyond the goalposts aren't separated further — that's the trade-off for fixed, year-over-year comparable scoring instead of percentiles.

Top scorers

Rank Province Raw value (days/yr ≥35°C (≥95°F)) Score
1 Phuket 0 100
2 Rayong 0 100
3 Trat 0 100
4 Songkhla 0 100
5 Chanthaburi 0 100

Lowest scorers

Rank Province Raw value (days/yr ≥35°C (≥95°F)) Score
77 Nakhon Pathom 150.6 52.3
76 Suphan Buri 146.6 54.4
75 Chai Nat 138.6 58.6
74 Nakhon Sawan 132.6 61.8
73 Uthai Thani 132.6 61.8
Show all 77 provinces ranked Sorted highest to lowest score
Rank Province Raw value (days/yr ≥35°C (≥95°F)) Score
1 Phuket 0 100
2 Rayong 0 100
3 Trat 0 100
4 Songkhla 0 100
5 Chanthaburi 0 100
6 Pattani 0 100
7 Nakhon Si Thammarat 3 100
8 Krabi 4 100
9 Narathiwat 6 100
10 Prachuap Khiri Khan 9 100
11 Satun 9 100
12 Yala 12 100
13 Chumphon 17 100
14 Phatthalung 18 100
15 Trang 20.9 100
16 Surat Thani 34.9 100
17 Ranong 38.9 100
18 Phangnga 44.9 100
19 Bueng Kan 45.9 100
20 Nakhon Phanom 47.9 100
21 Mae Hong Son 48.9 100
22 Chiang Mai 52.9 100
23 Phetchaburi 52.9 100
24 Phetchabun 55.8 100
25 Nan 59.8 100
26 Lamphun 66.8 96.4
27 Phayao 66.8 96.4
28 Phrae 69.8 94.8
29 Lampang 70.8 94.3
30 Samut Prakan 72.8 93.3
31 Chaiyaphum 72.8 93.3
32 Loei 74.8 92.2
33 Sakon Nakhon 74.8 92.2
34 Chiang Rai 77.8 90.6
35 Nong Khai 84.8 87
36 Udon Thani 86.8 85.9
37 Nong Bua Lam Phu 86.8 85.9
38 Kanchanaburi 88.8 84.9
39 Nakhon Ratchasima 88.8 84.9
40 Mukdahan 89.8 84.3
41 Yasothon 89.8 84.3
42 Amnat Charoen 89.8 84.3
43 Uttaradit 90.8 83.8
44 Sa Kaeo 90.8 83.8
45 Kalasin 91.7 83.3
46 Khon Kaen 93.7 82.2
47 Maha Sarakham 96.7 80.7
48 Chon Buri 97.7 80.1
49 Chachoengsao 97.7 80.1
50 Phichit 98.7 79.6
51 Roi Et 98.7 79.6
52 Kamphaeng Phet 99.7 79.1
53 Tak 99.7 79.1
54 Ubon Ratchathani 100.7 78.6
55 Nakhon Nayok 102.7 77.5
56 Prachin Buri 102.7 77.5
57 Si Sa Ket 102.7 77.5
58 Surin 102.7 77.5
59 Phitsanulok 105.7 75.9
60 Sukhothai 105.7 75.9
61 Buri Ram 111.7 72.8
62 Phra Nakhon Si Ayutthaya 124.7 66
63 Samut Songkhram 124.7 66
64 Saraburi 124.7 66
65 Samut Sakhon 124.7 66
66 Ratchaburi 124.7 66
67 Ang Thong 124.7 66
68 Bangkok 129.6 63.3
69 Nonthaburi 129.6 63.3
70 Pathum Thani 129.6 63.3
71 Sing Buri 129.6 63.3
72 Lopburi 129.6 63.3
73 Uthai Thani 132.6 61.8
74 Nakhon Sawan 132.6 61.8
75 Chai Nat 138.6 58.6
76 Suphan Buri 146.6 54.4
77 Nakhon Pathom 150.6 52.3

Methodology

See the methodology page for the full TLI scoring approach, including how this indicator's category Environment & Climate combines with the other six categories via geometric mean.

Cite as: "Annual Count of Days With Maximum Temperature ≥ 35°C." Thailand Livability Index, 2026. CC BY-NC 4.0.

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