Thailand rainfall · measured and forecast

Rainfall in Thailand today — 24-hour totals and 7-day forecast

In the past 24 hours 4,553 rain gauges across Thailand reported readings. The highest total was ~151.0 mm at rain gauge Amnat Charoen (อำนาจเจริญ Province), and 249 gauges recorded heavy rain or above ·

3-day rain forecast: up to ~251 mm at Ban Khlong Wai 7 (Surat Thani Province) · area average ~24 mm ·

Statistics and analysis on this page are for reference only and are not an official warning.

Page views 8 · today 5

Map of 24-hour rainfall and forecast rain across Thailand

Solid dot = rain measured in the past 24 hours · choose Today / 3 days / 7 days to see forecast rain · tap a point for details

Map © OpenStreetMap

Overbank High Normal Low Critically Low Red label = how far the water has overflowed the channel · coloured dot = not overflowing (colour shows how full the channel is) · tap for details

20 rain gauges with the most rain in 24 hours

Sorted from most to least rain · only gauges with a recent reading
No. Rain gauge Province Rain 24 h (mm) Rain class Measured
1 Amnat Charoen อำนาจเจริญ 151.0 Extreme
2 Nong Loeng Bueng Kan 141.4 Very heavy
3 ลำเซบาย/ลำเซบก อำนาจเจริญ 132.5 Very heavy
4 บ้านใหม่พัฒนา Loei 109.0 Very heavy
5 บ้านห้วยส้มป่อย Chiang Mai 102.5 Very heavy
6 Ban Khan Maenam Bon Bridge Sukhothai 102.2 Very heavy
7 National Park Protection Unit at SorKor. 2 (Phu Langka) Phayao 95.6 Very heavy
8 Non Nam Thaeng School อำนาจเจริญ 94.4 Very heavy
9 บ้านห้วยไผ่ Phetchaburi 93.5 Very heavy
10 บ้านแม่เชียงรายบน Lampang 92.0 Very heavy
11 สะพานพระแม่ย่า Sukhothai 90.0 Heavy
12 Nam Ing Bridge (I.17) Phayao 89.2 Heavy
13 Tanot Sukhothai 87.4 Heavy
14 Watershed Management and Community Development Unit in the Mae Saluam Conservation Forest Area Chiang Mai 87.2 Heavy
15 Huai Tun Reservoir Phayao 86.4 Heavy
16 Huai Muang Reservoir (Huai Hae) Phayao 84.4 Heavy
17 บ้านห้วยม่วง Loei 84.0 Heavy
18 Yom 12 Sukhothai 83.6 Heavy
19 ศาลาหมู่บ้าน บ้านห้วยไผ่ หมู่ 6 Phetchaburi 81.0 Heavy
20 Wildlife Sanctuary of Chao Ram Sukhothai 80.8 Heavy

Rainfall by region

Sorted from most to least measured rain
Region Highest measured rain, 24 h (mm) Rain class Heavy rain or above / gauges reporting 3-day forecast, highest (mm)
Northeast Region 151.0 Extreme 57 / 703 98
Northern Region 102.5 Very heavy 142 / 2,016 109
Central Region 93.5 Very heavy 26 / 797 106
Southern Region 68.0 Heavy 23 / 1,020 251
Bangkok Metropolitan 59.4 Heavy 1 / 14 20
Myanmar 10.2 Moderate 0 / 3 18

Rainfall in 77 provinces

Sorted from most to least measured rain · tap a province to see its water levels
Province Highest measured rain, 24 h (mm) Rain class Heavy rain or above / gauges reporting 3-day forecast, highest (mm)
อำนาจเจริญ 151.0 Extreme 5 / 10 –
Bueng Kan 141.4 Very heavy 8 / 13 13
Loei 109.0 Very heavy 11 / 113 27
Chiang Mai 102.5 Very heavy 21 / 343 109
Sukhothai 102.2 Very heavy 16 / 71 40
Phayao 95.6 Very heavy 30 / 125 40
Phetchaburi 93.5 Very heavy 5 / 50 54
Lampang 92.0 Very heavy 21 / 191 85
Phitsanulok 78.0 Heavy 7 / 85 47
Yasothon 77.5 Heavy 1 / 16 14
Nan 75.4 Heavy 13 / 218 63
Sakon Nakhon 72.0 Heavy 6 / 40 14
Buriram 70.8 Heavy 2 / 24 15
Chiang Rai 68.5 Heavy 9 / 244 75
Narathiwat 68.0 Heavy 9 / 70 235
Ubon Ratchathani 67.0 Heavy 5 / 52 27
Uttaradit 66.0 Heavy 8 / 84 20
Tak 65.6 Heavy 4 / 106 22
Kanchanaburi 65.0 Heavy 3 / 103 79
Nakhon Phanom 64.6 Heavy 7 / 31 17
Mae Hong Son 62.5 Heavy 4 / 112 13
Satun 60.5 Heavy 3 / 39 63
Phrae 59.4 Heavy 3 / 100 16
Bangkok 59.4 Heavy 1 / 14 20
Chumphon 58.7 Heavy 1 / 86 140
Ratchaburi 56.5 Heavy 3 / 36 48
Phetchabun 56.4 Heavy 2 / 87 45
Nong Bua Lamphu 56.0 Heavy 4 / 30 60
Surat Thani 56.0 Heavy 3 / 140 251
Udon Thani 53.2 Heavy 4 / 41 28
Sisaket 52.6 Heavy 1 / 24 14
Nakhon Si Thammarat 52.5 Heavy 3 / 152 188
Prachuap Khiri Khan 52.0 Heavy 3 / 82 106
Saraburi 49.0 Heavy 2 / 25 34
Lopburi 49.0 Heavy 1 / 33 28
Ayutthaya 48.4 Heavy 3 / 32 5.2
Sing Buri 47.8 Heavy 1 / 10 6.5
Kalasin 46.0 Heavy 1 / 27 82
Lamphun 43.0 Heavy 2 / 76 67
Nakhon Ratchasima 43.0 Heavy 2 / 110 56
Chachoengsao 42.2 Heavy 2 / 19 28
Pathum Thani 42.2 Heavy 1 / 12 10
Trat 40.6 Heavy 1 / 47 28
Uthai Thani 39.5 Heavy 1 / 51 53
Songkhla 39.0 Heavy 4 / 101 106
Suphan Buri 38.5 Heavy 1 / 38 49
Kamphaeng Phet 38.2 Heavy 1 / 51 61
Phang Nga 35.0 Moderate 0 / 57 16
Nakhon Nayok 34.2 Moderate 0 / 25 23
Khon Kaen 32.6 Moderate 0 / 29 98
Chanthaburi 32.5 Moderate 0 / 67 31
Chai Nat 31.4 Moderate 0 / 30 9.2
Nakhon Sawan 30.8 Moderate 0 / 55 32
Phichit 30.4 Moderate 0 / 17 38
Phatthalung 30.0 Moderate 0 / 58 116
Nong Khai 29.5 Moderate 0 / 12 39
Roi Et 29.2 Moderate 0 / 16 4.5
Ang Thong 29.0 Moderate 0 / 6 4.6
Krabi 25.0 Moderate 0 / 59 23
Trang 23.0 Moderate 0 / 61 104
Sa Kaeo 19.5 Moderate 0 / 43 49
Chonburi 19.0 Moderate 0 / 34 20
Surin 17.7 Moderate 0 / 18 48
Ranong 17.5 Moderate 0 / 53 99
Yala 17.0 Moderate 0 / 86 161
Samut Prakan 16.8 Moderate 0 / 10 16
Chaiyaphum 16.0 Moderate 0 / 62 69
Mukdahan 14.5 Moderate 0 / 15 4.2
Maha Sarakham 11.4 Moderate 0 / 20 44
Prachinburi 10.2 Moderate 0 / 33 29
Rayong 5.8 Light 0 / 32 23
Nakhon Pathom 5.6 Light 0 / 12 62
Nonthaburi 0.6 Light 0 / 4 15
Pattani 0.5 Light 0 / 34 55
Phuket 0.5 Light 0 / 24 18
Samut Sakhon 0 No rain 0 / 8 69
Samut Songkhram 0 No rain 0 / 6 11

How to read the rainfall figures on this page

24-hour rain classes (same colours as the map)

“Heavy rain or above” on this page counts gauges whose 24-hour rain is in the “Heavy” class or higher, that is, from 35.1 mm.

“Rain 24 h” is the 24-hour accumulated rainfall actually measured and reported by each rain gauge, in millimetres (mm). Every value carries the time it was measured. Gauges that have not sent a new reading for a long time are left out of the counts and rankings, so the number of gauges reporting can change from one update to the next.

The “3-day forecast” column is something different from measured rain: it is the rainfall the weather forecast expects over three days starting today, in the area of each water level station. The table shows the highest value among the stations in that province or region, so it is an estimate of what may come, not rain that has fallen, and it can differ from what actually falls.

Read the two together: 24-hour rain shows where a lot of rain has already fallen, while the forecast shows where more may come in the days ahead. For a province where both are high, check the water level against the river bank on the province page by tapping its name in the table.

On the map, solid dots are measured rain, darker for higher rain classes in the colour key above. When zoomed out the map hides gauges with little or no rain; zoom in to see every gauge. The Today / 3 days / 7 days buttons switch to forecast rain, drawn as rings around water level stations, with a different set of class ranges from 24-hour rain because they are multi-day totals.

FAQ

Where did it rain the most in Thailand today?

Based on the latest rain gauge readings (latest reading 15:00), the highest 24-hour total is ~151.0 mm at rain gauge Amnat Charoen (อำนาจเจริญ Province). The next highest are listed in the table of 20 gauges on this page, sorted from most to least rain.

What is the difference between 24-hour rain and forecast rain?

24-hour rain is rain that has already fallen and was measured at a rain gauge. Forecast rain is the amount expected in the days ahead in the area of a water level station, so it is an estimate and can differ from what actually falls. On the map, a solid dot is rain that has fallen and a ring around a point is rain that is expected.

How many millimetres count as heavy rain?

This page sorts 24-hour rain into 6 classes: No rain (0 mm) · Light (0.1–10 mm) · Moderate (10.1–35 mm) · Heavy (35.1–90 mm) · Very heavy (90.1–150 mm) · Extreme (>150 mm). “Heavy rain or above” on this page counts gauges whose 24-hour rain is in the “Heavy” class or higher, that is, from 35.1 mm.

Does heavy rain mean it will flood?

Not always. Rainfall tells you how much water came down, but whether a river overflows depends on the water level in rivers and canals at that time. Check each station's water level against the bank on the province page, linked from the table. Information on this site supports your own decisions only and is not an official warning.