Ranong weather in December
In December, Ranong sees average daytime highs of 29°C and overnight lows near 22°C, with 86 mm of rain across 11.5 wet days and about 11.4 hours of daylight. It is the 9th-warmest and 10th-wettest month of the year here.
Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 22% of the time in December, and the air most often feels oppressive.
Daylight stretches from about 11 h 30 min at the start of December to 11 h 24 min by month's end. Set against the rest of the year, December is Ranong's 4th-clearest and 4th-windiest month. For the whole year in context, see Ranong's year-round climate.
- Daytime high
- 29°
- 9th warmest
- Overnight low
- 22°
- 3rd coldest
- Rainfall
- 86 mm
- 11.5 wet days
- Daylight
- 11 h 24 min
- 6:39 AM – 6:04 PM
- Cloud cover
- 66%
- 4th clearest
- Wind
- 10 km/h
- 4th windiest
- Solar energy
- 4.73 kWh/m²
- Travel score
- 5.0
- out of 10
Ranong is town in Ranong province, Thailand.
- Founded
- 1937
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Day-to-day highs hold fairly steady near 29°C through the month.
A typical December day in Ranong reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, December runs on par with November and about 1°C cooler than January.
| 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) | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 |
| Avg low (°C) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 29 | 23 |
| 2 | 29 | 23 |
| 3 | 29 | 23 |
| 4 | 29 | 23 |
| 5 | 29 | 23 |
| 6 | 29 | 23 |
| 7 | 29 | 23 |
| 8 | 29 | 23 |
| 9 | 29 | 23 |
| 10 | 29 | 23 |
| 11 | 29 | 23 |
| 12 | 29 | 23 |
| 13 | 29 | 22 |
| 14 | 29 | 22 |
| 15 | 29 | 22 |
| 16 | 29 | 22 |
| 17 | 29 | 22 |
| 18 | 29 | 22 |
| 19 | 29 | 22 |
| 20 | 29 | 22 |
| 21 | 29 | 22 |
| 22 | 29 | 22 |
| 23 | 29 | 22 |
| 24 | 29 | 22 |
| 25 | 29 | 22 |
| 26 | 29 | 22 |
| 27 | 29 | 22 |
| 28 | 29 | 22 |
| 29 | 29 | 22 |
| 30 | 30 | 22 |
| 31 | 30 | 22 |
How December really feels in Ranong
Once humidity and wind are folded in, December averages 20 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 December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Ranong weather by month
How December compares with the rest of the year at a glance. December is the 9th-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 22° | 61 | 7.6 | 11.5 | 5.1 |
| Feb | 32° / 22° | 33 | 5 | 11.7 | 4.5 |
| Mar | 33° / 23° | 105 | 10.9 | 11.9 | 3.5 |
| Apr | 33° / 24° | 182 | 19.1 | 12.2 | 2.8 |
| May | 31° / 24° | 273 | 27.9 | 12.5 | 2.6 |
| Jun | 30° / 24° | 250 | 26 | 12.6 | 3.0 |
| Jul | 29° / 24° | 270 | 27.5 | 12.5 | 3.0 |
| Aug | 29° / 24° | 292 | 27.8 | 12.3 | 3.0 |
| Sep | 29° / 24° | 361 | 28.1 | 12.1 | 2.9 |
| Oct | 29° / 23° | 373 | 28.3 | 11.8 | 3.0 |
| Nov | 29° / 23° | 201 | 21.2 | 11.5 | 3.7 |
| Dec | 29° / 22° | 86 | 11.5 | 11.4 | 5.0 |
Cloud cover in December
The sky is clear or mostly clear about 22% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 59%. Skies tend to open up 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 (%) | 31 | 33 | 34 | 34 | 35 | 35 | 35 | 36 | 36 | 37 | 37 | 40 | 40 | 40 | 41 | 42 | 42 | 43 | 43 | 44 | 44 | 45 | 46 | 45 | 46 | 46 | 46 | 46 | 46 | 46 | 46 |
| Cloudier (%) | 69 | 67 | 66 | 66 | 65 | 65 | 65 | 64 | 64 | 63 | 63 | 60 | 60 | 60 | 59 | 58 | 58 | 57 | 57 | 56 | 56 | 55 | 54 | 55 | 54 | 54 | 54 | 54 | 54 | 54 | 54 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 31 | 69 |
| 2 | 33 | 67 |
| 3 | 34 | 66 |
| 4 | 34 | 66 |
| 5 | 35 | 65 |
| 6 | 35 | 65 |
| 7 | 35 | 65 |
| 8 | 36 | 64 |
| 9 | 36 | 64 |
| 10 | 37 | 63 |
| 11 | 37 | 63 |
| 12 | 40 | 60 |
| 13 | 40 | 60 |
| 14 | 40 | 60 |
| 15 | 41 | 59 |
| 16 | 42 | 58 |
| 17 | 42 | 58 |
| 18 | 43 | 57 |
| 19 | 43 | 57 |
| 20 | 44 | 56 |
| 21 | 44 | 56 |
| 22 | 45 | 55 |
| 23 | 46 | 54 |
| 24 | 45 | 55 |
| 25 | 46 | 54 |
| 26 | 46 | 54 |
| 27 | 46 | 54 |
| 28 | 46 | 54 |
| 29 | 46 | 54 |
| 30 | 46 | 54 |
| 31 | 46 | 54 |
Chance of precipitation in December
Ranong gets around 86 mm of rain over 11.5 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 38% and peaks near 55% on the wettest days. The odds ease 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 (%) | 55 | 54 | 53 | 51 | 50 | 49 | 48 | 47 | 46 | 45 | 44 | 43 | 42 | 40 | 39 | 38 | 37 | 36 | 34 | 33 | 32 | 30 | 29 | 28 | 28 | 27 | 26 | 26 | 26 | 26 | 26 |
| Rain chance (%) | |
|---|---|
| 1 | 55 |
| 2 | 54 |
| 3 | 53 |
| 4 | 51 |
| 5 | 50 |
| 6 | 49 |
| 7 | 48 |
| 8 | 47 |
| 9 | 46 |
| 10 | 45 |
| 11 | 44 |
| 12 | 43 |
| 13 | 42 |
| 14 | 40 |
| 15 | 39 |
| 16 | 38 |
| 17 | 37 |
| 18 | 36 |
| 19 | 34 |
| 20 | 33 |
| 21 | 32 |
| 22 | 30 |
| 23 | 29 |
| 24 | 28 |
| 25 | 28 |
| 26 | 27 |
| 27 | 26 |
| 28 | 26 |
| 29 | 26 |
| 30 | 26 |
| 31 | 26 |
Humidity in December
Most of December feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the oppressive band about 63% of days. Sticky, muggy-or-worse air turns up on roughly 97% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Humid (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 6 | 6 | 7 | 6 | 6 | 6 | 6 |
| Muggy (%) | 15 | 15 | 16 | 17 | 17 | 18 | 19 | 20 | 20 | 21 | 22 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 30 | 31 | 32 | 32 | 33 | 33 | 33 | 33 | 33 | 33 | 32 | 31 | 31 |
| Oppressive (%) | 66 | 67 | 67 | 67 | 68 | 68 | 69 | 69 | 70 | 69 | 69 | 67 | 67 | 66 | 65 | 64 | 63 | 62 | 61 | 59 | 58 | 58 | 56 | 56 | 57 | 57 | 56 | 57 | 59 | 60 | 60 |
| Miserable (%) | 19 | 18 | 17 | 16 | 15 | 14 | 12 | 11 | 10 | 10 | 9 | 8 | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 2 | 2 | 2 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|
| 1 | 0 | 0 | 15 | 66 | 19 |
| 2 | 0 | 0 | 15 | 67 | 18 |
| 3 | 0 | 0 | 16 | 67 | 17 |
| 4 | 0 | 0 | 17 | 67 | 16 |
| 5 | 0 | 0 | 17 | 68 | 15 |
| 6 | 0 | 0 | 18 | 68 | 14 |
| 7 | 0 | 0 | 19 | 69 | 12 |
| 8 | 0 | 0 | 20 | 69 | 11 |
| 9 | 0 | 0 | 20 | 70 | 10 |
| 10 | 0 | 0 | 21 | 69 | 10 |
| 11 | 0 | 0 | 22 | 69 | 9 |
| 12 | 0 | 1 | 24 | 67 | 8 |
| 13 | 0 | 1 | 25 | 67 | 7 |
| 14 | 0 | 1 | 26 | 66 | 7 |
| 15 | 0 | 2 | 27 | 65 | 6 |
| 16 | 0 | 2 | 28 | 64 | 6 |
| 17 | 0 | 3 | 29 | 63 | 5 |
| 18 | 0 | 3 | 30 | 62 | 5 |
| 19 | 0 | 4 | 30 | 61 | 5 |
| 20 | 1 | 4 | 31 | 59 | 5 |
| 21 | 1 | 5 | 32 | 58 | 4 |
| 22 | 1 | 5 | 32 | 58 | 4 |
| 23 | 1 | 6 | 33 | 56 | 4 |
| 24 | 1 | 6 | 33 | 56 | 4 |
| 25 | 1 | 6 | 33 | 57 | 3 |
| 26 | 1 | 6 | 33 | 57 | 3 |
| 27 | 1 | 7 | 33 | 56 | 3 |
| 28 | 1 | 6 | 33 | 57 | 3 |
| 29 | 1 | 6 | 32 | 59 | 2 |
| 30 | 1 | 6 | 31 | 60 | 2 |
| 31 | 1 | 6 | 31 | 60 | 2 |
Wind in December
Winds average 10 km/h in December.
Across December, daily wind ranges from about 10 km/h on the calmest days to 10 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) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| 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 | 10 | calm |
| 2 | 10 | calm |
| 3 | 10 | calm |
| 4 | 10 | calm |
| 5 | 10 | calm |
| 6 | 10 | calm |
| 7 | 10 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 10 | calm |
| 11 | 10 | calm |
| 12 | 10 | calm |
| 13 | 10 | calm |
| 14 | 10 | calm |
| 15 | 10 | calm |
| 16 | 10 | calm |
| 17 | 10 | calm |
| 18 | 10 | calm |
| 19 | 10 | calm |
| 20 | 10 | calm |
| 21 | 10 | calm |
| 22 | 10 | calm |
| 23 | 10 | calm |
| 24 | 10 | calm |
| 25 | 10 | calm |
| 26 | 10 | calm |
| 27 | 10 | calm |
| 28 | 10 | calm |
| 29 | 10 | calm |
| 30 | 10 | calm |
| 31 | 10 | calm |
Sunrise & sunset in December
Daylight runs from about 11 h 30 min at the start of December to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 6 minutes over December. Sunrise moves from 6:31 AM to 6:46 AM, and sunset from 5:59 PM to 6:11 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) | 11.5 | 11.5 | 11.5 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 |
| Sunrise (AM) | 6:31 | 6:32 | 6:32 | 6:33 | 6:33 | 6:34 | 6:34 | 6:35 | 6:35 | 6:36 | 6:36 | 6:37 | 6:37 | 6:38 | 6:38 | 6:39 | 6:39 | 6:40 | 6:40 | 6:41 | 6:41 | 6:42 | 6:42 | 6:43 | 6:43 | 6:44 | 6:44 | 6:45 | 6:45 | 6:45 | 6:46 |
| Sunset (PM) | 5:59 | 5:59 | 6:00 | 6:00 | 6:00 | 6:00 | 6:01 | 6:01 | 6:01 | 6:02 | 6:02 | 6:03 | 6:03 | 6:03 | 6:04 | 6:04 | 6:05 | 6:05 | 6:06 | 6:06 | 6:06 | 6:07 | 6:07 | 6:08 | 6:08 | 6:09 | 6:09 | 6:10 | 6:10 | 6:11 | 6:11 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.5 | 6:31 | 5:59 |
| 2 | 11.5 | 6:32 | 5:59 |
| 3 | 11.5 | 6:32 | 6:00 |
| 4 | 11.4 | 6:33 | 6:00 |
| 5 | 11.4 | 6:33 | 6:00 |
| 6 | 11.4 | 6:34 | 6:00 |
| 7 | 11.4 | 6:34 | 6:01 |
| 8 | 11.4 | 6:35 | 6:01 |
| 9 | 11.4 | 6:35 | 6:01 |
| 10 | 11.4 | 6:36 | 6:02 |
| 11 | 11.4 | 6:36 | 6:02 |
| 12 | 11.4 | 6:37 | 6:03 |
| 13 | 11.4 | 6:37 | 6:03 |
| 14 | 11.4 | 6:38 | 6:03 |
| 15 | 11.4 | 6:38 | 6:04 |
| 16 | 11.4 | 6:39 | 6:04 |
| 17 | 11.4 | 6:39 | 6:05 |
| 18 | 11.4 | 6:40 | 6:05 |
| 19 | 11.4 | 6:40 | 6:06 |
| 20 | 11.4 | 6:41 | 6:06 |
| 21 | 11.4 | 6:41 | 6:06 |
| 22 | 11.4 | 6:42 | 6:07 |
| 23 | 11.4 | 6:42 | 6:07 |
| 24 | 11.4 | 6:43 | 6:08 |
| 25 | 11.4 | 6:43 | 6:08 |
| 26 | 11.4 | 6:44 | 6:09 |
| 27 | 11.4 | 6:44 | 6:09 |
| 28 | 11.4 | 6:45 | 6:10 |
| 29 | 11.4 | 6:45 | 6:10 |
| 30 | 11.4 | 6:45 | 6:11 |
| 31 | 11.4 | 6:46 | 6:11 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 4.73 kWh/m².
For context, solar energy here swings from a low near 4.42 kWh/m² to a high of 6.27 kWh/m² in March across the year — December's 4.73 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) | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.6 | 4.6 | 4.6 | 4.6 | 4.7 | 4.7 | 4.7 | 4.7 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 |
| 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 | 4.5 | Bright |
| 2 | 4.5 | Bright |
| 3 | 4.5 | Bright |
| 4 | 4.5 | Bright |
| 5 | 4.5 | Bright |
| 6 | 4.5 | Bright |
| 7 | 4.5 | Bright |
| 8 | 4.6 | Bright |
| 9 | 4.6 | Bright |
| 10 | 4.6 | Bright |
| 11 | 4.6 | Bright |
| 12 | 4.7 | Bright |
| 13 | 4.7 | Bright |
| 14 | 4.7 | Bright |
| 15 | 4.7 | Bright |
| 16 | 4.8 | Bright |
| 17 | 4.8 | Bright |
| 18 | 4.8 | Bright |
| 19 | 4.8 | Bright |
| 20 | 4.8 | Bright |
| 21 | 4.9 | Bright |
| 22 | 4.9 | Bright |
| 23 | 4.9 | Bright |
| 24 | 4.9 | Bright |
| 25 | 4.9 | Bright |
| 26 | 4.9 | Bright |
| 27 | 4.9 | Bright |
| 28 | 4.9 | Bright |
| 29 | 5.0 | Bright |
| 30 | 5.0 | Bright |
| 31 | 5.0 | Bright |
Hazard calendar for Ranong
In December, Ranong sits inside its cyclone season. The full year is below, with each hazard's peak months called out.
Ranong sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.
Ranong's rainy season runs April–November, when most of the year's rain falls.
Is December a good time to visit Ranong?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a reasonable time to visit Ranong for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Ranong in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Ranong sees daytime highs around 29°C and nights near 22°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.
Sea temperature near Ranong in December
The nearest coast averages about 28°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 30 km away) is warmest in April at about 30°C and coldest in January near 28°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 28 | 29 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Warm |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Tropical |
UV index in Ranong in December
Clear-sky midday UV in December 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 Ranong peaks around August 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 at about 9 (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) | 10 | 12 | 13 | 13 | 13 | 12 | 12 | 14 | 13 | 12 | 9 | 10 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 12 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 13 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 14 | Extreme |
| Sep | 13 | Extreme |
| Oct | 12 | Extreme |
| Nov | 9 | Very high |
| Dec | 10 | Very high |
Air quality in Ranong in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in Ranong is worst in January — around 19 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 19 | 18 | 18 | 18 | 15 | 14 | 15 | 13 | 13 | 13 | 13 | 14 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 19 | Moderate |
| Feb | 18 | Moderate |
| Mar | 18 | Moderate |
| Apr | 18 | Moderate |
| May | 15 | Moderate |
| Jun | 14 | Moderate |
| Jul | 15 | Moderate |
| Aug | 13 | Moderate |
| Sep | 13 | Moderate |
| Oct | 13 | Moderate |
| Nov | 13 | Moderate |
| Dec | 14 | Moderate |
Where is Ranong?
Ranong sits at 10.0°N, 98.6°E, 38 m above sea level, in Thailand. The nearest listed city is Kawthaung, 9.0 km away.
Topography around Ranong
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ranong.
Within 3 km, the terrain around Ranong has significant variations in elevation — a maximum elevation change of 464 m around an average of 52 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,058 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,368 m.
The land around Ranong is covered by trees (59%) and artificial surfaces (26%) within 3 km, trees (63%) and water (23%) within 16 km, and trees (52%) and water (45%) 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 Ranong (9.9658°, 98.6348°, elevation 38 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).