# Loei

Loei (Thai: เลย; pronounced) is a town (thesaban mueang) in northeast Thailand. Loei covers the whole tambon of Mueang Loei district and is the capital of Loei province. In 2017, Loei had a population of 21,013. Loei lies 545 km north-northeast of Bangkok, 150 km west of Udon Thani.

## Geography

Loei is in the fertile valley of the Loei River, which runs from south to north through the eastern part of the town. A range of hills lies to the east, including Phu Bo Bit Forest Park, about 3 kilometres (1.9 mi) from the town centre.

## Climate

Loei has a tropical savanna climate (Köppen climate classification Aw). Winters are quite dry and very warm. Temperatures rise until April, which is hot with the average daily maximum at 36.0 °C (96.8 °F). The monsoon season is from late April to October, with heavy rain and somewhat cooler temperatures during the day, although nights remain warm.
Climate data for Loei (1991–2020, extremes 1954-present) :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 36.9 (98.4) | 40.5 (104.9) | 41.3 (106.3) | 43.5 (110.3) | 43.8 (110.8) | 40.2 (104.4) | 39.0 (102.2) | 36.5 (97.7) | 36.2 (97.2) | 37.4 (99.3) | 36.4 (97.5) | 35.0 (95.0) | 43.8 (110.8) |
| Mean daily maximum °C (°F) | 30.2 (86.4) | 32.9 (91.2) | 35.2 (95.4) | 36.0 (96.8) | 34.3 (93.7) | 33.4 (92.1) | 32.6 (90.7) | 32.0 (89.6) | 31.7 (89.1) | 31.4 (88.5) | 30.9 (87.6) | 29.3 (84.7) | 32.5 (90.5) |
| Daily mean °C (°F) | 22.2 (72.0) | 24.3 (75.7) | 27.1 (80.8) | 28.5 (83.3) | 28.0 (82.4) | 28.1 (82.6) | 27.7 (81.9) | 27.2 (81.0) | 26.7 (80.1) | 26.0 (78.8) | 24.2 (75.6) | 21.9 (71.4) | 26.0 (78.8) |
| Mean daily minimum °C (°F) | 15.6 (60.1) | 17.1 (62.8) | 20.3 (68.5) | 22.8 (73.0) | 23.9 (75.0) | 24.4 (75.9) | 24.2 (75.6) | 24.0 (75.2) | 23.4 (74.1) | 22.0 (71.6) | 18.9 (66.0) | 16.0 (60.8) | 21.1 (69.9) |
| Record low °C (°F) | 0.1 (32.2) | 6.6 (43.9) | 9.3 (48.7) | 14.7 (58.5) | 19.5 (67.1) | 21.4 (70.5) | 20.5 (68.9) | 20.0 (68.0) | 18.6 (65.5) | 12.6 (54.7) | 5.7 (42.3) | 2.2 (36.0) | 0.1 (32.2) |
| Average precipitation mm (inches) | 7.6 (0.30) | 13.9 (0.55) | 40.4 (1.59) | 94.2 (3.71) | 188.5 (7.42) | 164.0 (6.46) | 160.5 (6.32) | 204.9 (8.07) | 239.8 (9.44) | 109.5 (4.31) | 21.3 (0.84) | 11.4 (0.45) | 1,256 (49.4) |
| Average precipitation days (≥ 1.0 mm) | 1.1 | 1.7 | 3.9 | 7.3 | 13.1 | 12.7 | 13.1 | 15.1 | 15.7 | 7.8 | 2.1 | 0.7 | 94.3 |
| Average relative humidity (%) | 68.6 | 63.1 | 61.6 | 66.7 | 76.1 | 77.1 | 77.8 | 80.0 | 83.3 | 79.6 | 74.4 | 71.0 | 73.3 |
| Average dew point °C (°F) | 15.3 (59.5) | 15.7 (60.3) | 17.9 (64.2) | 20.8 (69.4) | 22.9 (73.2) | 23.3 (73.9) | 23.1 (73.6) | 23.2 (73.8) | 23.4 (74.1) | 21.8 (71.2) | 18.8 (65.8) | 15.8 (60.4) | 20.2 (68.4) |
| Mean monthly sunshine hours | 245.6 | 240.9 | 241.3 | 227.7 | 194.4 | 158.1 | 130.2 | 128.5 | 148.8 | 196.6 | 221.9 | 233.8 | 2,367.8 |
| Source 1: World Meteorological Organization ||||||||||||||
| Source 2: Thai Meteorological Department (extremes) ||||||||||||||

## Transportation

Route 201 leads from Chiang Khan in the north on the border with Laos, through Loei, to Non Sa-at near Chum Phae. Route 203 leads west to the vicinity of Phu Ruea, and then turns south to Lom Sak.
Loei is served by Loei Airport.