Nan weather in April
In April, Nan sees average daytime highs of 36°C and overnight lows near 24°C, with 78 mm of rain across 11.6 wet days and about 12.4 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.
Day-to-day highs hold fairly steady near 36°C through the month. The sky is clear or mostly clear about 54% of the time in April, and the air most often feels oppressive.
Daylight stretches from about 12 h 12 min at the start of April to 12 h 42 min by month's end. Set against the rest of the year, April is Nan's 6th-clearest and 3rd-windiest month. For the whole year in context, see Nan's year-round climate.
- Daytime high
- 36°
- 1st warmest
- Overnight low
- 24°
- 7th coldest
- Rainfall
- 78 mm
- 11.6 wet days
- Daylight
- 12 h 24 min
- 6:04 AM – 6:30 PM
- Cloud cover
- 44%
- 6th clearest
- Wind
- 5 km/h
- 3rd windiest
- Solar energy
- 6.22 kWh/m²
- Travel score
- 2.2
- out of 10
Nan is town in Nan province, Thailand.
- Air quality
- High
- PM2.5 29.5 µg/m³ · 2019
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Day-to-day highs hold fairly steady near 36°C through the month.
A typical April day in Nan reaches about 36°C in the afternoon and slips back to 24°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 39°C. Set against its neighbours, April runs on par with March and about 2°C warmer than May.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 35 | 35 | 35 | 35 | 35 | 35 | 35 |
| Avg low (°C) | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 36 | 22 |
| 2 | 36 | 22 |
| 3 | 36 | 23 |
| 4 | 36 | 23 |
| 5 | 36 | 23 |
| 6 | 36 | 23 |
| 7 | 36 | 23 |
| 8 | 36 | 23 |
| 9 | 36 | 23 |
| 10 | 36 | 23 |
| 11 | 36 | 23 |
| 12 | 36 | 23 |
| 13 | 36 | 24 |
| 14 | 36 | 24 |
| 15 | 36 | 24 |
| 16 | 36 | 24 |
| 17 | 36 | 24 |
| 18 | 36 | 24 |
| 19 | 36 | 24 |
| 20 | 36 | 24 |
| 21 | 36 | 24 |
| 22 | 36 | 24 |
| 23 | 36 | 24 |
| 24 | 35 | 24 |
| 25 | 35 | 24 |
| 26 | 35 | 24 |
| 27 | 35 | 24 |
| 28 | 35 | 24 |
| 29 | 35 | 24 |
| 30 | 35 | 24 |
How April really feels in Nan
Once humidity and wind are folded in, April averages 30 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 April is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Nan weather by month
How April compares with the rest of the year at a glance. April is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 16° | 15 | 2 | 11 | 6.4 |
| Feb | 33° / 17° | 8 | 1.2 | 11.4 | 4.7 |
| Mar | 35° / 20° | 30 | 4.6 | 11.9 | 2.9 |
| Apr | 36° / 24° | 78 | 11.6 | 12.4 | 2.2 |
| May | 34° / 25° | 166 | 21.5 | 12.9 | 2.3 |
| Jun | 32° / 25° | 190 | 23.4 | 13.1 | 2.5 |
| Jul | 31° / 25° | 273 | 26.5 | 13 | 2.6 |
| Aug | 31° / 24° | 312 | 28.1 | 12.6 | 2.6 |
| Sep | 31° / 24° | 221 | 24.4 | 12.1 | 2.8 |
| Oct | 31° / 23° | 74 | 13.8 | 11.6 | 4.1 |
| Nov | 31° / 20° | 22 | 3.5 | 11.1 | 5.4 |
| Dec | 29° / 17° | 14 | 1.7 | 10.9 | 6.6 |
Cloud cover in April
The sky is clear or mostly clear about 54% of the time in April.
Beyond those clear spells, partly cloudy skies cover about 19% of April, with mostly cloudy or overcast conditions the remaining 27%. 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 80 | 80 | 80 | 79 | 79 | 78 | 78 | 77 | 76 | 75 | 74 | 74 | 73 | 73 | 72 | 73 | 72 | 72 | 71 | 72 | 71 | 70 | 71 | 70 | 69 | 68 | 67 | 66 | 65 | 63 |
| Cloudier (%) | 20 | 20 | 20 | 21 | 21 | 22 | 22 | 23 | 24 | 25 | 26 | 26 | 27 | 27 | 28 | 27 | 28 | 28 | 29 | 28 | 29 | 30 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 37 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 80 | 20 |
| 2 | 80 | 20 |
| 3 | 80 | 20 |
| 4 | 79 | 21 |
| 5 | 79 | 21 |
| 6 | 78 | 22 |
| 7 | 78 | 22 |
| 8 | 77 | 23 |
| 9 | 76 | 24 |
| 10 | 75 | 25 |
| 11 | 74 | 26 |
| 12 | 74 | 26 |
| 13 | 73 | 27 |
| 14 | 73 | 27 |
| 15 | 72 | 28 |
| 16 | 73 | 27 |
| 17 | 72 | 28 |
| 18 | 72 | 28 |
| 19 | 71 | 29 |
| 20 | 72 | 28 |
| 21 | 71 | 29 |
| 22 | 70 | 30 |
| 23 | 71 | 29 |
| 24 | 70 | 30 |
| 25 | 69 | 31 |
| 26 | 68 | 32 |
| 27 | 67 | 33 |
| 28 | 66 | 34 |
| 29 | 65 | 35 |
| 30 | 63 | 37 |
Chance of precipitation in April
Nan gets around 78 mm of rain over 11.6 wet days in April. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 39% and peaks near 56% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 25 | 26 | 26 | 27 | 28 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 41 | 42 | 44 | 45 | 46 | 47 | 49 | 50 | 51 | 52 | 53 | 55 | 56 |
| Rain chance (%) | |
|---|---|
| 1 | 25 |
| 2 | 26 |
| 3 | 26 |
| 4 | 27 |
| 5 | 28 |
| 6 | 28 |
| 7 | 29 |
| 8 | 30 |
| 9 | 31 |
| 10 | 32 |
| 11 | 33 |
| 12 | 34 |
| 13 | 35 |
| 14 | 36 |
| 15 | 37 |
| 16 | 38 |
| 17 | 39 |
| 18 | 41 |
| 19 | 42 |
| 20 | 44 |
| 21 | 45 |
| 22 | 46 |
| 23 | 47 |
| 24 | 49 |
| 25 | 50 |
| 26 | 51 |
| 27 | 52 |
| 28 | 53 |
| 29 | 55 |
| 30 | 56 |
Humidity in April
Most of April feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, April lands in the oppressive band about 58% of days. Sticky, muggy-or-worse air turns up on roughly 95% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Humid (%) | 17 | 15 | 13 | 12 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 |
| Muggy (%) | 57 | 57 | 57 | 55 | 55 | 54 | 52 | 51 | 50 | 48 | 46 | 44 | 42 | 40 | 38 | 36 | 34 | 32 | 29 | 27 | 25 | 23 | 21 | 19 | 17 | 16 | 14 | 13 | 11 | 10 |
| Oppressive (%) | 25 | 27 | 29 | 32 | 34 | 36 | 39 | 41 | 44 | 46 | 49 | 52 | 55 | 57 | 60 | 62 | 63 | 65 | 68 | 70 | 73 | 75 | 77 | 79 | 80 | 81 | 83 | 85 | 86 | 87 |
| Miserable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 3 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|
| 1 | 1 | 17 | 57 | 25 | 0 |
| 2 | 1 | 15 | 57 | 27 | 0 |
| 3 | 1 | 13 | 57 | 29 | 0 |
| 4 | 1 | 12 | 55 | 32 | 0 |
| 5 | 1 | 10 | 55 | 34 | 0 |
| 6 | 1 | 9 | 54 | 36 | 0 |
| 7 | 1 | 8 | 52 | 39 | 0 |
| 8 | 1 | 7 | 51 | 41 | 0 |
| 9 | 1 | 6 | 50 | 44 | 0 |
| 10 | 1 | 5 | 48 | 46 | 0 |
| 11 | 1 | 4 | 46 | 49 | 0 |
| 12 | 0 | 4 | 44 | 52 | 0 |
| 13 | 0 | 3 | 42 | 55 | 0 |
| 14 | 0 | 3 | 40 | 57 | 0 |
| 15 | 0 | 2 | 38 | 60 | 0 |
| 16 | 0 | 2 | 36 | 62 | 0 |
| 17 | 0 | 2 | 34 | 63 | 1 |
| 18 | 0 | 2 | 32 | 65 | 1 |
| 19 | 0 | 2 | 29 | 68 | 1 |
| 20 | 0 | 2 | 27 | 70 | 1 |
| 21 | 0 | 1 | 25 | 73 | 1 |
| 22 | 0 | 1 | 23 | 75 | 1 |
| 23 | 0 | 1 | 21 | 77 | 1 |
| 24 | 0 | 1 | 19 | 79 | 1 |
| 25 | 0 | 1 | 17 | 80 | 2 |
| 26 | 0 | 1 | 16 | 81 | 2 |
| 27 | 0 | 1 | 14 | 83 | 2 |
| 28 | 0 | 0 | 13 | 85 | 2 |
| 29 | 0 | 0 | 11 | 86 | 3 |
| 30 | 0 | 0 | 10 | 87 | 3 |
Wind in April
Winds average 5 km/h in April.
Across April, daily wind ranges from about 5 km/h on the calmest days to 6 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 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 |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 6 | calm |
| 2 | 6 | calm |
| 3 | 6 | calm |
| 4 | 6 | calm |
| 5 | 6 | calm |
| 6 | 6 | calm |
| 7 | 6 | calm |
| 8 | 6 | calm |
| 9 | 6 | calm |
| 10 | 6 | calm |
| 11 | 6 | calm |
| 12 | 6 | calm |
| 13 | 6 | calm |
| 14 | 6 | 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 |
Sunrise & sunset in April
Daylight runs from about 12 h 12 min at the start of April to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 30 minutes over April. Sunrise moves from 6:17 AM to 5:55 AM, and sunset from 6:26 PM to 6:34 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.7 |
| Sunrise (AM) | 6:17 | 6:16 | 6:15 | 6:14 | 6:13 | 6:12 | 6:12 | 6:11 | 6:10 | 6:09 | 6:08 | 6:07 | 6:07 | 6:06 | 6:05 | 6:04 | 6:04 | 6:03 | 6:02 | 6:01 | 6:01 | 6:00 | 5:59 | 5:58 | 5:58 | 5:57 | 5:56 | 5:56 | 5:55 | 5:55 |
| Sunset (PM) | 6:26 | 6:27 | 6:27 | 6:27 | 6:27 | 6:27 | 6:28 | 6:28 | 6:28 | 6:28 | 6:29 | 6:29 | 6:29 | 6:29 | 6:30 | 6:30 | 6:30 | 6:30 | 6:31 | 6:31 | 6:31 | 6:32 | 6:32 | 6:32 | 6:32 | 6:33 | 6:33 | 6:33 | 6:34 | 6:34 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.2 | 6:17 | 6:26 |
| 2 | 12.2 | 6:16 | 6:27 |
| 3 | 12.2 | 6:15 | 6:27 |
| 4 | 12.2 | 6:14 | 6:27 |
| 5 | 12.2 | 6:13 | 6:27 |
| 6 | 12.3 | 6:12 | 6:27 |
| 7 | 12.3 | 6:12 | 6:28 |
| 8 | 12.3 | 6:11 | 6:28 |
| 9 | 12.3 | 6:10 | 6:28 |
| 10 | 12.3 | 6:09 | 6:28 |
| 11 | 12.3 | 6:08 | 6:29 |
| 12 | 12.4 | 6:07 | 6:29 |
| 13 | 12.4 | 6:07 | 6:29 |
| 14 | 12.4 | 6:06 | 6:29 |
| 15 | 12.4 | 6:05 | 6:30 |
| 16 | 12.4 | 6:04 | 6:30 |
| 17 | 12.4 | 6:04 | 6:30 |
| 18 | 12.5 | 6:03 | 6:30 |
| 19 | 12.5 | 6:02 | 6:31 |
| 20 | 12.5 | 6:01 | 6:31 |
| 21 | 12.5 | 6:01 | 6:31 |
| 22 | 12.5 | 6:00 | 6:32 |
| 23 | 12.5 | 5:59 | 6:32 |
| 24 | 12.6 | 5:58 | 6:32 |
| 25 | 12.6 | 5:58 | 6:32 |
| 26 | 12.6 | 5:57 | 6:33 |
| 27 | 12.6 | 5:56 | 6:33 |
| 28 | 12.6 | 5:56 | 6:33 |
| 29 | 12.6 | 5:55 | 6:34 |
| 30 | 12.7 | 5:55 | 6:34 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 6.22 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 3.85 kWh/m² to a high of 6.22 kWh/m² in April across the year — April's 6.22 kWh/m² sits near the top of that range.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6.0 | 6.0 | 6.0 | 5.9 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.2 | Intense |
| 2 | 6.2 | Intense |
| 3 | 6.2 | Intense |
| 4 | 6.2 | Intense |
| 5 | 6.2 | Intense |
| 6 | 6.3 | Intense |
| 7 | 6.3 | Intense |
| 8 | 6.3 | Intense |
| 9 | 6.3 | Intense |
| 10 | 6.3 | Intense |
| 11 | 6.3 | Intense |
| 12 | 6.3 | Intense |
| 13 | 6.3 | Intense |
| 14 | 6.3 | Intense |
| 15 | 6.3 | Intense |
| 16 | 6.2 | Intense |
| 17 | 6.2 | Intense |
| 18 | 6.2 | Intense |
| 19 | 6.2 | Intense |
| 20 | 6.2 | Intense |
| 21 | 6.2 | Intense |
| 22 | 6.2 | Intense |
| 23 | 6.2 | Intense |
| 24 | 6.1 | Intense |
| 25 | 6.1 | Intense |
| 26 | 6.1 | Intense |
| 27 | 6.0 | Intense |
| 28 | 6.0 | Intense |
| 29 | 6.0 | Bright |
| 30 | 5.9 | Bright |
Hazard calendar for Nan
None of Nan's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Nan's monsoon runs May–September, when most of the year's rain falls.
Is April a good time to visit Nan?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is a weaker month for outdoor sightseeing in Nan.
What to pack for Nan in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Nan sees daytime highs around 36°C and nights near 24°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.
UV index in Nan in April
Clear-sky midday UV in April peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Nan peaks around August 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 7 (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) | 8 | 9 | 9 | 10 | 11 | 13 | 13 | 13 | 11 | 10 | 8 | 7 |
| Level | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 9 | Very high |
| Mar | 9 | Very high |
| Apr | 10 | Very high |
| May | 11 | Extreme |
| Jun | 13 | Extreme |
| Jul | 13 | Extreme |
| Aug | 13 | Extreme |
| Sep | 11 | Extreme |
| Oct | 10 | Very high |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in Nan in April
Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.
Air quality in Nan is worst in March — around 71 µg/m³ PM2.5 (unhealthy), about 4.2× the cleanest month (September, 17 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Nan's WHO annual average of 29.5 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 27 | 39 | 71 | 65 | 28 | 17 | 17 | 17 | 17 | 17 | 18 | 21 |
| Level | Moderate | Poor | Unhealthy | Unhealthy | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 27 | Moderate |
| Feb | 39 | Poor |
| Mar | 71 | Unhealthy |
| Apr | 65 | Unhealthy |
| May | 28 | Moderate |
| Jun | 17 | Moderate |
| Jul | 17 | Moderate |
| Aug | 17 | Moderate |
| Sep | 17 | Moderate |
| Oct | 17 | Moderate |
| Nov | 18 | Moderate |
| Dec | 21 | Moderate |
Where is Nan?
Nan sits at 18.8°N, 100.8°E, 205 m above sea level, in Thailand. The nearest listed city is Dok Kham Tai, 93 km away.
Topography around Nan
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Nan.
Within 3 km, the terrain around Nan has only modest variations in elevation — a maximum elevation change of 61 m around an average of 208 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 478 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,915 m.
The land around Nan is covered by trees (39%), artificial surfaces (28%) and cropland (21%) within 3 km, trees (76%) within 16 km, and trees (87%) 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 Nan (18.7838°, 100.779°, elevation 205 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).