Loei weather in May
In May, Loei sees average daytime highs of 33°C and overnight lows near 24°C, with 198 mm of rain across 23.6 wet days and about 12.8 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.
Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 10% of the time in May, and the air most often feels oppressive.
Daylight stretches from about 12 h 36 min at the start of May to 13 hours by month's end. Set against the rest of the year, May is Loei's 8th-clearest and 10th-windiest month. For the whole year in context, see Loei's year-round climate.
- Daytime high
- 33°
- 3rd warmest
- Overnight low
- 24°
- 10th coldest
- Rainfall
- 198 mm
- 23.6 wet days
- Daylight
- 12 h 48 min
- 5:45 AM – 6:34 PM
- Cloud cover
- 78%
- 8th clearest
- Wind
- 5 km/h
- 10th windiest
- Solar energy
- 5.24 kWh/m²
- Travel score
- 2.4
- out of 10
Loei is town in Loei province, Thailand.
- Air quality
- Elevated
- PM2.5 25 µg/m³ · 2019
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Day-to-day highs hold fairly steady near 33°C through the month.
A typical May day in Loei reaches about 33°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 36°C. Set against its neighbours, May runs about 1°C cooler than April and on par with June.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 33 | 24 |
| 2 | 33 | 24 |
| 3 | 33 | 24 |
| 4 | 33 | 24 |
| 5 | 33 | 24 |
| 6 | 33 | 24 |
| 7 | 33 | 24 |
| 8 | 33 | 24 |
| 9 | 33 | 24 |
| 10 | 33 | 24 |
| 11 | 33 | 24 |
| 12 | 33 | 24 |
| 13 | 33 | 24 |
| 14 | 33 | 24 |
| 15 | 33 | 24 |
| 16 | 33 | 24 |
| 17 | 32 | 24 |
| 18 | 32 | 24 |
| 19 | 32 | 24 |
| 20 | 32 | 24 |
| 21 | 32 | 24 |
| 22 | 32 | 25 |
| 23 | 32 | 25 |
| 24 | 32 | 25 |
| 25 | 32 | 25 |
| 26 | 32 | 25 |
| 27 | 32 | 25 |
| 28 | 32 | 25 |
| 29 | 32 | 25 |
| 30 | 32 | 25 |
| 31 | 32 | 25 |
How May really feels in Loei
Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Loei weather by month
How May compares with the rest of the year at a glance. May is the 3rd-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 16° | 12 | 1.9 | 11.1 | 7.4 |
| Feb | 31° / 18° | 15 | 2.8 | 11.4 | 5.7 |
| Mar | 33° / 21° | 47 | 7.8 | 11.9 | 3.8 |
| Apr | 34° / 23° | 88 | 14.8 | 12.4 | 2.8 |
| May | 33° / 24° | 198 | 23.6 | 12.8 | 2.4 |
| Jun | 32° / 25° | 168 | 20.8 | 13 | 2.7 |
| Jul | 31° / 25° | 188 | 22.2 | 12.9 | 2.9 |
| Aug | 31° / 24° | 249 | 24.8 | 12.6 | 2.8 |
| Sep | 31° / 24° | 241 | 24.1 | 12.1 | 3.0 |
| Oct | 30° / 22° | 113 | 13.7 | 11.6 | 4.6 |
| Nov | 29° / 19° | 24 | 3.4 | 11.2 | 6.6 |
| Dec | 27° / 17° | 10 | 1.6 | 11 | 8.1 |
Cloud cover in May
The sky is clear or mostly clear about 10% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 78%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 47 | 44 | 43 | 41 | 41 | 39 | 36 | 33 | 32 | 30 | 28 | 26 | 24 | 23 | 21 | 18 | 17 | 15 | 15 | 13 | 12 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 6 | 6 |
| Cloudier (%) | 53 | 56 | 57 | 59 | 59 | 61 | 64 | 67 | 68 | 70 | 72 | 74 | 76 | 77 | 79 | 82 | 83 | 85 | 85 | 87 | 88 | 89 | 90 | 90 | 90 | 91 | 91 | 91 | 92 | 94 | 94 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 47 | 53 |
| 2 | 44 | 56 |
| 3 | 43 | 57 |
| 4 | 41 | 59 |
| 5 | 41 | 59 |
| 6 | 39 | 61 |
| 7 | 36 | 64 |
| 8 | 33 | 67 |
| 9 | 32 | 68 |
| 10 | 30 | 70 |
| 11 | 28 | 72 |
| 12 | 26 | 74 |
| 13 | 24 | 76 |
| 14 | 23 | 77 |
| 15 | 21 | 79 |
| 16 | 18 | 82 |
| 17 | 17 | 83 |
| 18 | 15 | 85 |
| 19 | 15 | 85 |
| 20 | 13 | 87 |
| 21 | 12 | 88 |
| 22 | 11 | 89 |
| 23 | 10 | 90 |
| 24 | 10 | 90 |
| 25 | 10 | 90 |
| 26 | 9 | 91 |
| 27 | 9 | 91 |
| 28 | 9 | 91 |
| 29 | 8 | 92 |
| 30 | 6 | 94 |
| 31 | 6 | 94 |
Chance of precipitation in May
Loei gets around 198 mm of rain over 23.6 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 76% and peaks near 82% on the wettest days. The odds climb toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 66 | 67 | 68 | 68 | 69 | 69 | 70 | 71 | 72 | 73 | 73 | 74 | 75 | 76 | 77 | 78 | 78 | 79 | 79 | 80 | 80 | 81 | 81 | 81 | 81 | 82 | 82 | 82 | 82 | 82 | 82 |
| Rain chance (%) | |
|---|---|
| 1 | 66 |
| 2 | 67 |
| 3 | 68 |
| 4 | 68 |
| 5 | 69 |
| 6 | 69 |
| 7 | 70 |
| 8 | 71 |
| 9 | 72 |
| 10 | 73 |
| 11 | 73 |
| 12 | 74 |
| 13 | 75 |
| 14 | 76 |
| 15 | 77 |
| 16 | 78 |
| 17 | 78 |
| 18 | 79 |
| 19 | 79 |
| 20 | 80 |
| 21 | 80 |
| 22 | 81 |
| 23 | 81 |
| 24 | 81 |
| 25 | 81 |
| 26 | 82 |
| 27 | 82 |
| 28 | 82 |
| 29 | 82 |
| 30 | 82 |
| 31 | 82 |
Humidity in May
Most of May feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the oppressive band about 77% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Muggy (%) | 10 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 |
| Oppressive (%) | 85 | 86 | 86 | 85 | 86 | 85 | 85 | 84 | 83 | 82 | 81 | 81 | 80 | 79 | 78 | 78 | 77 | 76 | 76 | 75 | 74 | 73 | 72 | 71 | 70 | 69 | 68 | 68 | 68 | 67 | 67 |
| Miserable (%) | 4 | 5 | 6 | 7 | 7 | 8 | 9 | 10 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 27 | 28 | 29 | 30 | 31 | 31 | 32 | 33 | 33 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 1 | 10 | 85 | 4 |
| 2 | 0 | 9 | 86 | 5 |
| 3 | 0 | 8 | 86 | 6 |
| 4 | 0 | 8 | 85 | 7 |
| 5 | 0 | 7 | 86 | 7 |
| 6 | 0 | 7 | 85 | 8 |
| 7 | 0 | 6 | 85 | 9 |
| 8 | 0 | 6 | 84 | 10 |
| 9 | 0 | 5 | 83 | 12 |
| 10 | 0 | 5 | 82 | 13 |
| 11 | 0 | 5 | 81 | 14 |
| 12 | 0 | 4 | 81 | 15 |
| 13 | 0 | 4 | 80 | 16 |
| 14 | 0 | 4 | 79 | 17 |
| 15 | 0 | 4 | 78 | 18 |
| 16 | 0 | 3 | 78 | 19 |
| 17 | 0 | 3 | 77 | 20 |
| 18 | 0 | 3 | 76 | 21 |
| 19 | 0 | 2 | 76 | 22 |
| 20 | 0 | 2 | 75 | 23 |
| 21 | 0 | 2 | 74 | 24 |
| 22 | 0 | 2 | 73 | 25 |
| 23 | 0 | 1 | 72 | 27 |
| 24 | 0 | 1 | 71 | 28 |
| 25 | 0 | 1 | 70 | 29 |
| 26 | 0 | 1 | 69 | 30 |
| 27 | 0 | 1 | 68 | 31 |
| 28 | 0 | 1 | 68 | 31 |
| 29 | 0 | 0 | 68 | 32 |
| 30 | 0 | 0 | 67 | 33 |
| 31 | 0 | 0 | 67 | 33 |
Wind in May
Winds average 5 km/h in May.
Across May, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 5 | calm |
| 2 | 5 | calm |
| 3 | 5 | calm |
| 4 | 5 | calm |
| 5 | 5 | calm |
| 6 | 5 | calm |
| 7 | 5 | calm |
| 8 | 5 | calm |
| 9 | 5 | calm |
| 10 | 5 | calm |
| 11 | 5 | calm |
| 12 | 5 | calm |
| 13 | 5 | calm |
| 14 | 5 | calm |
| 15 | 5 | calm |
| 16 | 5 | calm |
| 17 | 5 | calm |
| 18 | 5 | calm |
| 19 | 5 | calm |
| 20 | 5 | calm |
| 21 | 5 | calm |
| 22 | 5 | calm |
| 23 | 5 | calm |
| 24 | 5 | calm |
| 25 | 5 | calm |
| 26 | 5 | calm |
| 27 | 5 | calm |
| 28 | 5 | calm |
| 29 | 5 | calm |
| 30 | 5 | calm |
| 31 | 5 | calm |
Sunrise & sunset in May
Daylight runs from about 12 h 36 min at the start of May to 13 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 24 minutes over May. Sunrise moves from 5:52 AM to 5:42 AM, and sunset from 6:29 PM to 6:39 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.6 | 12.6 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.8 | 12.8 | 12.8 | 12.8 | 12.8 | 12.8 | 12.8 | 12.8 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 13.0 | 13.0 |
| Sunrise (AM) | 5:52 | 5:51 | 5:50 | 5:50 | 5:49 | 5:49 | 5:48 | 5:48 | 5:48 | 5:47 | 5:47 | 5:46 | 5:46 | 5:46 | 5:45 | 5:45 | 5:44 | 5:44 | 5:44 | 5:44 | 5:43 | 5:43 | 5:43 | 5:43 | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 |
| Sunset (PM) | 6:29 | 6:29 | 6:30 | 6:30 | 6:30 | 6:31 | 6:31 | 6:31 | 6:31 | 6:32 | 6:32 | 6:32 | 6:33 | 6:33 | 6:34 | 6:34 | 6:34 | 6:35 | 6:35 | 6:35 | 6:36 | 6:36 | 6:36 | 6:37 | 6:37 | 6:37 | 6:38 | 6:38 | 6:39 | 6:39 | 6:39 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.6 | 5:52 | 6:29 |
| 2 | 12.6 | 5:51 | 6:29 |
| 3 | 12.7 | 5:50 | 6:30 |
| 4 | 12.7 | 5:50 | 6:30 |
| 5 | 12.7 | 5:49 | 6:30 |
| 6 | 12.7 | 5:49 | 6:31 |
| 7 | 12.7 | 5:48 | 6:31 |
| 8 | 12.7 | 5:48 | 6:31 |
| 9 | 12.7 | 5:48 | 6:31 |
| 10 | 12.7 | 5:47 | 6:32 |
| 11 | 12.8 | 5:47 | 6:32 |
| 12 | 12.8 | 5:46 | 6:32 |
| 13 | 12.8 | 5:46 | 6:33 |
| 14 | 12.8 | 5:46 | 6:33 |
| 15 | 12.8 | 5:45 | 6:34 |
| 16 | 12.8 | 5:45 | 6:34 |
| 17 | 12.8 | 5:44 | 6:34 |
| 18 | 12.8 | 5:44 | 6:35 |
| 19 | 12.9 | 5:44 | 6:35 |
| 20 | 12.9 | 5:44 | 6:35 |
| 21 | 12.9 | 5:43 | 6:36 |
| 22 | 12.9 | 5:43 | 6:36 |
| 23 | 12.9 | 5:43 | 6:36 |
| 24 | 12.9 | 5:43 | 6:37 |
| 25 | 12.9 | 5:42 | 6:37 |
| 26 | 12.9 | 5:42 | 6:37 |
| 27 | 12.9 | 5:42 | 6:38 |
| 28 | 12.9 | 5:42 | 6:38 |
| 29 | 12.9 | 5:42 | 6:39 |
| 30 | 13.0 | 5:42 | 6:39 |
| 31 | 13.0 | 5:42 | 6:39 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 5.24 kWh/m².
For context, solar energy here swings from a low near 4.13 kWh/m² to a high of 5.97 kWh/m² in April across the year — May's 5.24 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.7 | 5.7 | 5.7 | 5.6 | 5.6 | 5.6 | 5.5 | 5.5 | 5.4 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.7 | Bright |
| 2 | 5.7 | Bright |
| 3 | 5.7 | Bright |
| 4 | 5.6 | Bright |
| 5 | 5.6 | Bright |
| 6 | 5.6 | Bright |
| 7 | 5.5 | Bright |
| 8 | 5.5 | Bright |
| 9 | 5.4 | Bright |
| 10 | 5.4 | Bright |
| 11 | 5.4 | Bright |
| 12 | 5.3 | Bright |
| 13 | 5.3 | Bright |
| 14 | 5.3 | Bright |
| 15 | 5.2 | Bright |
| 16 | 5.2 | Bright |
| 17 | 5.2 | Bright |
| 18 | 5.1 | Bright |
| 19 | 5.1 | Bright |
| 20 | 5.1 | Bright |
| 21 | 5.1 | Bright |
| 22 | 5.1 | Bright |
| 23 | 5.0 | Bright |
| 24 | 5.0 | Bright |
| 25 | 5.0 | Bright |
| 26 | 5.0 | Bright |
| 27 | 5.0 | Bright |
| 28 | 5.0 | Bright |
| 29 | 4.9 | Bright |
| 30 | 4.9 | Bright |
| 31 | 4.9 | Bright |
Hazard calendar for Loei
In May, Loei sits inside its monsoon season. The full year is below, with each hazard's peak months called out.
Loei's monsoon runs May–October, when most of the year's rain falls.
Is May a good time to visit Loei?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is a weaker month for outdoor sightseeing in Loei.
What to pack for Loei in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Loei sees daytime highs around 33°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.
UV index in Loei in May
Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Loei peaks around August 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 8 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 9 | 10 | 12 | 11 | 11 | 13 | 13 | 13 | 11 | 10 | 8 | 8 |
| Level | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 10 | Very high |
| Mar | 12 | Extreme |
| Apr | 11 | Extreme |
| May | 11 | Extreme |
| Jun | 13 | Extreme |
| Jul | 13 | Extreme |
| Aug | 13 | Extreme |
| Sep | 11 | Extreme |
| Oct | 10 | Extreme |
| Nov | 8 | Very high |
| Dec | 8 | Very high |
Air quality in Loei in May
Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.
Air quality in Loei is worst in March — around 50 µg/m³ PM2.5 (poor), about 3.1× the cleanest month (July, 16 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Loei's WHO annual average of 25 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 25 | 36 | 50 | 40 | 23 | 16 | 16 | 17 | 18 | 20 | 19 | 20 |
| Level | Moderate | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 25 | Moderate |
| Feb | 36 | Poor |
| Mar | 50 | Poor |
| Apr | 40 | Poor |
| May | 23 | Moderate |
| Jun | 16 | Moderate |
| Jul | 16 | Moderate |
| Aug | 17 | Moderate |
| Sep | 18 | Moderate |
| Oct | 20 | Moderate |
| Nov | 19 | Moderate |
| Dec | 20 | Moderate |
Where is Loei?
Loei sits at 17.5°N, 101.7°E, 244 m above sea level, in Thailand. The nearest listed city is Wang Saphung, 22 km away.
Topography around Loei
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Loei.
Within 3 km, the terrain around Loei has significant variations in elevation — a maximum elevation change of 274 m around an average of 256 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 518 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,810 m.
The land around Loei is covered by trees (59%) and artificial surfaces (25%) within 3 km, trees (76%) within 16 km, and trees (65%) and cropland (24%) within 80 km.
Thailand travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B / C
- 230 V · 50 Hz
- Prices
- ≈ 31% of US
- price level, 2025
- GDP per capita
- $8,057
- 2025
- Happiness
- 6.3 / 10
- World Happiness, 2025
- Homicide rate
- 4.8
- per 100k, 2011
- Road deaths
- 32.2
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very low
- EF EPI 402
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Loei (17.4905°, 101.7275°, elevation 244 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).