Serian weather in October
In October, Serian sees average daytime highs of 31°C and overnight lows near 23°C, with 253 mm of rain across 27.8 wet days and about 12 hours of daylight. It is the 7th-warmest and 4th-wettest month of the year here.
Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 0% of the time in October, and the air most often feels oppressive.
Daylight stretches from about 12 hours at the start of October to 12 hours by month's end. Set against the rest of the year, October is Serian's 8th-clearest and 9th-windiest month. For the whole year in context, see Serian's year-round climate.
- Daytime high
- 31°
- 7th warmest
- Overnight low
- 23°
- 7th coldest
- Rainfall
- 253 mm
- 27.8 wet days
- Daylight
- 12 hours
- 6:24 AM – 6:22 PM
- Cloud cover
- 89%
- 8th clearest
- Wind
- 4 km/h
- 9th windiest
- Solar energy
- 4.8 kWh/m²
- Travel score
- 2.5
- out of 10
Serian is town in Sarawak, Malaysia.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in October
Day-to-day highs hold fairly steady near 31°C through the month.
A typical October day in Serian reaches about 31°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, October runs on par with September and on par with November.
| 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) | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 |
| Avg low (°C) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 31 | 23 |
| 2 | 31 | 23 |
| 3 | 31 | 23 |
| 4 | 31 | 23 |
| 5 | 31 | 23 |
| 6 | 31 | 23 |
| 7 | 31 | 23 |
| 8 | 31 | 23 |
| 9 | 31 | 23 |
| 10 | 31 | 23 |
| 11 | 31 | 23 |
| 12 | 31 | 23 |
| 13 | 31 | 23 |
| 14 | 31 | 23 |
| 15 | 31 | 23 |
| 16 | 31 | 23 |
| 17 | 31 | 23 |
| 18 | 31 | 23 |
| 19 | 31 | 23 |
| 20 | 31 | 23 |
| 21 | 31 | 23 |
| 22 | 31 | 23 |
| 23 | 31 | 23 |
| 24 | 31 | 23 |
| 25 | 31 | 23 |
| 26 | 31 | 23 |
| 27 | 31 | 23 |
| 28 | 31 | 23 |
| 29 | 31 | 23 |
| 30 | 31 | 23 |
| 31 | 31 | 23 |
How October really feels in Serian
Once humidity and wind are folded in, October 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 October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Serian weather by month
How October compares with the rest of the year at a glance. October is the 7th-warmest and 4th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 23° | 268 | 27.7 | 11.9 | 2.8 |
| Feb | 30° / 23° | 231 | 23.2 | 12 | 2.9 |
| Mar | 31° / 23° | 224 | 26.6 | 12 | 2.6 |
| Apr | 32° / 24° | 218 | 26.9 | 12 | 2.4 |
| May | 32° / 24° | 196 | 25.2 | 12.1 | 2.5 |
| Jun | 32° / 24° | 147 | 20 | 12.1 | 3.0 |
| Jul | 32° / 23° | 130 | 18.2 | 12.1 | 3.2 |
| Aug | 32° / 23° | 150 | 19.7 | 12 | 2.9 |
| Sep | 32° / 23° | 193 | 23.4 | 12 | 2.7 |
| Oct | 31° / 23° | 253 | 27.8 | 12 | 2.5 |
| Nov | 31° / 23° | 261 | 28.7 | 11.9 | 2.4 |
| Dec | 31° / 23° | 292 | 28.1 | 11.9 | 2.6 |
Cloud cover in October
The sky is clear or mostly clear about 0% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 4% of October, with mostly cloudy or overcast conditions the remaining 95%.
| 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 (%) | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Cloudier (%) | 93 | 93 | 93 | 93 | 94 | 94 | 94 | 93 | 93 | 94 | 94 | 94 | 94 | 95 | 95 | 95 | 95 | 96 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 7 | 93 |
| 2 | 7 | 93 |
| 3 | 7 | 93 |
| 4 | 7 | 93 |
| 5 | 6 | 94 |
| 6 | 6 | 94 |
| 7 | 6 | 94 |
| 8 | 7 | 93 |
| 9 | 7 | 93 |
| 10 | 6 | 94 |
| 11 | 6 | 94 |
| 12 | 6 | 94 |
| 13 | 6 | 94 |
| 14 | 5 | 95 |
| 15 | 5 | 95 |
| 16 | 5 | 95 |
| 17 | 5 | 95 |
| 18 | 4 | 96 |
| 19 | 3 | 97 |
| 20 | 3 | 97 |
| 21 | 3 | 97 |
| 22 | 3 | 97 |
| 23 | 3 | 97 |
| 24 | 3 | 97 |
| 25 | 3 | 97 |
| 26 | 3 | 97 |
| 27 | 3 | 97 |
| 28 | 3 | 97 |
| 29 | 3 | 97 |
| 30 | 3 | 97 |
| 31 | 3 | 97 |
Chance of precipitation in October
Serian gets around 253 mm of rain over 27.8 wet days in October. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 89% and peaks near 93% 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 (%) | 84 | 85 | 85 | 86 | 86 | 86 | 87 | 87 | 87 | 88 | 88 | 88 | 88 | 89 | 89 | 89 | 89 | 90 | 90 | 90 | 91 | 91 | 92 | 92 | 92 | 93 | 93 | 93 | 93 | 93 | 93 |
| Rain chance (%) | |
|---|---|
| 1 | 84 |
| 2 | 85 |
| 3 | 85 |
| 4 | 86 |
| 5 | 86 |
| 6 | 86 |
| 7 | 87 |
| 8 | 87 |
| 9 | 87 |
| 10 | 88 |
| 11 | 88 |
| 12 | 88 |
| 13 | 88 |
| 14 | 89 |
| 15 | 89 |
| 16 | 89 |
| 17 | 89 |
| 18 | 90 |
| 19 | 90 |
| 20 | 90 |
| 21 | 91 |
| 22 | 91 |
| 23 | 92 |
| 24 | 92 |
| 25 | 92 |
| 26 | 93 |
| 27 | 93 |
| 28 | 93 |
| 29 | 93 |
| 30 | 93 |
| 31 | 93 |
Humidity in October
Most of October feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, October lands in the oppressive band about 63% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oppressive (%) | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 63 | 63 | 63 | 62 | 62 | 62 | 61 | 60 | 59 | 59 | 58 | 56 |
| Miserable (%) | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 37 | 37 | 37 | 38 | 38 | 38 | 39 | 40 | 41 | 41 | 42 | 44 |
| Oppressive (%) | Miserable (%) | |
|---|---|---|
| 1 | 64 | 36 |
| 2 | 64 | 36 |
| 3 | 64 | 36 |
| 4 | 64 | 36 |
| 5 | 64 | 36 |
| 6 | 64 | 36 |
| 7 | 64 | 36 |
| 8 | 64 | 36 |
| 9 | 64 | 36 |
| 10 | 64 | 36 |
| 11 | 64 | 36 |
| 12 | 64 | 36 |
| 13 | 64 | 36 |
| 14 | 64 | 36 |
| 15 | 64 | 36 |
| 16 | 64 | 36 |
| 17 | 64 | 36 |
| 18 | 64 | 36 |
| 19 | 64 | 36 |
| 20 | 63 | 37 |
| 21 | 63 | 37 |
| 22 | 63 | 37 |
| 23 | 62 | 38 |
| 24 | 62 | 38 |
| 25 | 62 | 38 |
| 26 | 61 | 39 |
| 27 | 60 | 40 |
| 28 | 59 | 41 |
| 29 | 59 | 41 |
| 30 | 58 | 42 |
| 31 | 56 | 44 |
Wind in October
Winds average 4 km/h in October.
Across October, daily wind ranges from about 4 km/h on the calmest days to 4 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) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| 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 | 4 | calm |
| 2 | 4 | calm |
| 3 | 4 | calm |
| 4 | 4 | calm |
| 5 | 4 | calm |
| 6 | 4 | calm |
| 7 | 4 | calm |
| 8 | 4 | calm |
| 9 | 4 | calm |
| 10 | 4 | calm |
| 11 | 4 | calm |
| 12 | 4 | calm |
| 13 | 4 | calm |
| 14 | 4 | calm |
| 15 | 4 | calm |
| 16 | 4 | calm |
| 17 | 4 | calm |
| 18 | 4 | calm |
| 19 | 4 | calm |
| 20 | 4 | calm |
| 21 | 4 | calm |
| 22 | 4 | calm |
| 23 | 4 | calm |
| 24 | 4 | calm |
| 25 | 4 | calm |
| 26 | 4 | calm |
| 27 | 4 | calm |
| 28 | 4 | calm |
| 29 | 4 | calm |
| 30 | 4 | calm |
| 31 | 4 | calm |
Sunrise & sunset in October
Daylight runs from about 12 hours at the start of October to 12 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 0 minutes over October. Sunrise moves from 6:27 AM to 6:23 AM, and sunset from 6:26 PM to 6:20 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) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunrise (AM) | 6:27 | 6:27 | 6:26 | 6:26 | 6:26 | 6:26 | 6:25 | 6:25 | 6:25 | 6:25 | 6:24 | 6:24 | 6:24 | 6:24 | 6:24 | 6:24 | 6:23 | 6:23 | 6:23 | 6:23 | 6:23 | 6:23 | 6:23 | 6:23 | 6:23 | 6:23 | 6:23 | 6:22 | 6:22 | 6:22 | 6:23 |
| Sunset (PM) | 6:26 | 6:26 | 6:26 | 6:25 | 6:25 | 6:25 | 6:24 | 6:24 | 6:24 | 6:24 | 6:23 | 6:23 | 6:23 | 6:22 | 6:22 | 6:22 | 6:22 | 6:22 | 6:21 | 6:21 | 6:21 | 6:21 | 6:21 | 6:21 | 6:20 | 6:20 | 6:20 | 6:20 | 6:20 | 6:20 | 6:20 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.0 | 6:27 | 6:26 |
| 2 | 12.0 | 6:27 | 6:26 |
| 3 | 12.0 | 6:26 | 6:26 |
| 4 | 12.0 | 6:26 | 6:25 |
| 5 | 12.0 | 6:26 | 6:25 |
| 6 | 12.0 | 6:26 | 6:25 |
| 7 | 12.0 | 6:25 | 6:24 |
| 8 | 12.0 | 6:25 | 6:24 |
| 9 | 12.0 | 6:25 | 6:24 |
| 10 | 12.0 | 6:25 | 6:24 |
| 11 | 12.0 | 6:24 | 6:23 |
| 12 | 12.0 | 6:24 | 6:23 |
| 13 | 12.0 | 6:24 | 6:23 |
| 14 | 12.0 | 6:24 | 6:22 |
| 15 | 12.0 | 6:24 | 6:22 |
| 16 | 12.0 | 6:24 | 6:22 |
| 17 | 12.0 | 6:23 | 6:22 |
| 18 | 12.0 | 6:23 | 6:22 |
| 19 | 12.0 | 6:23 | 6:21 |
| 20 | 12.0 | 6:23 | 6:21 |
| 21 | 12.0 | 6:23 | 6:21 |
| 22 | 12.0 | 6:23 | 6:21 |
| 23 | 12.0 | 6:23 | 6:21 |
| 24 | 12.0 | 6:23 | 6:21 |
| 25 | 12.0 | 6:23 | 6:20 |
| 26 | 12.0 | 6:23 | 6:20 |
| 27 | 12.0 | 6:23 | 6:20 |
| 28 | 12.0 | 6:22 | 6:20 |
| 29 | 12.0 | 6:22 | 6:20 |
| 30 | 12.0 | 6:22 | 6:20 |
| 31 | 12.0 | 6:23 | 6:20 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 4.8 kWh/m².
For context, solar energy here swings from a low near 4.23 kWh/m² to a high of 5.24 kWh/m² in August across the year — October's 4.8 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) | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 | 4.6 | 4.6 | 4.6 | 4.6 |
| 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 | 5.0 | Bright |
| 2 | 5.0 | Bright |
| 3 | 4.9 | Bright |
| 4 | 4.9 | Bright |
| 5 | 4.9 | Bright |
| 6 | 4.9 | Bright |
| 7 | 4.9 | Bright |
| 8 | 4.9 | Bright |
| 9 | 4.9 | Bright |
| 10 | 4.9 | Bright |
| 11 | 4.9 | Bright |
| 12 | 4.9 | Bright |
| 13 | 4.9 | Bright |
| 14 | 4.8 | Bright |
| 15 | 4.8 | Bright |
| 16 | 4.8 | Bright |
| 17 | 4.8 | Bright |
| 18 | 4.8 | Bright |
| 19 | 4.8 | Bright |
| 20 | 4.8 | Bright |
| 21 | 4.8 | Bright |
| 22 | 4.8 | Bright |
| 23 | 4.7 | Bright |
| 24 | 4.7 | Bright |
| 25 | 4.7 | Bright |
| 26 | 4.7 | Bright |
| 27 | 4.7 | Bright |
| 28 | 4.6 | Bright |
| 29 | 4.6 | Bright |
| 30 | 4.6 | Bright |
| 31 | 4.6 | Bright |
Is October a good time to visit Serian?
Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
October is a weaker month for outdoor sightseeing in Serian.
What to pack for Serian in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Serian sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.
Sea temperature near Serian in October
The nearest coast averages about 30°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 51 km away) is warmest in June at about 30°C and coldest in February 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 | 28 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Tropical |
| Feb | 28 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 30 | Tropical |
| Nov | 30 | Tropical |
| Dec | 29 | Tropical |
UV index in Serian in October
Clear-sky midday UV in October peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Serian peaks around February 18 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 11 (extreme).
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) | 14 | 16 | 15 | 15 | 13 | 11 | 11 | 13 | 13 | 14 | 12 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 16 | Extreme |
| Mar | 15 | Extreme |
| Apr | 15 | Extreme |
| May | 13 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 13 | Extreme |
| Oct | 14 | Extreme |
| Nov | 12 | Extreme |
| Dec | 11 | Extreme |
Air quality in Serian in October
Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.
Air quality in Serian is worst in August — around 36 µg/m³ PM2.5 (poor), about 3.2× the cleanest month (January, 11 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 11 | 12 | 14 | 15 | 15 | 15 | 23 | 36 | 36 | 21 | 13 | 12 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Poor | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 12 | Moderate |
| Mar | 14 | Moderate |
| Apr | 15 | Moderate |
| May | 15 | Moderate |
| Jun | 15 | Moderate |
| Jul | 23 | Moderate |
| Aug | 36 | Poor |
| Sep | 36 | Poor |
| Oct | 21 | Moderate |
| Nov | 13 | Moderate |
| Dec | 12 | Moderate |
Where is Serian?
Serian sits at 1.2°N, 110.6°E, 20 m above sea level, in Malaysia. The nearest listed city is Tebedu, 27 km away.
Topography around Serian
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Serian.
Within 3 km, the terrain around Serian has significant variations in elevation — a maximum elevation change of 327 m around an average of 33 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 775 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,649 m.
The land around Serian is covered by trees (82%) within 3 km, trees (95%) within 16 km, and trees (83%) within 80 km.
Malaysia travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / G / M
- 230 V · 50 Hz
- Prices
- ≈ 32% of US
- price level, 2025
- GDP per capita
- $13,125
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 95%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2023
- Road deaths
- 22.5
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- High
- EF EPI 581
- 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 Serian (1.1667°, 110.5667°, elevation 20 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. 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).