UTC Offset
UTC+08:00
Siayan, Philippines Snapshot 2026
Where is Siayan?
Siayan, Philippines
- Continent
- Asia
- Country
- Philippines
- City
- Siayan
- Population
- 4.9K
- Coordinates
- 8.27°, 123.10°
Siayan is a city in Philippines with a population of approximately 4.9K. Average temperatures range from 24°C (76°F) in February to 30°C (86°F) in April. The best time to visit is February.
Time in Siayan right now
Open full time & time zone page 23:06 06
Tuesday, June 30, 2026
IANA time zone
Asia/Manila
Daylight saving
No DST
Next DST change
—
Live weather in Siayan
Daylight in Siayan today
View full sunrise & sunset page Sunrise
Sunset
Day length
12h 36m
Climate normals for Siayan
Long-term monthly averages based on historical data.
January
Wet 
February best
Fair March
Wet April
Wet May
Wet June
Wet July
Wet August
Wet September
Wet October
Wet November
Wet December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 28°C / 25°C | 34°C / 29°C | 23days (248 mm) Wet | 8.6h Good | 88% Very Muggy | 7.3 Very High | Wet | View Details |
| February best | 28°C / 24°C | 34°C / 29°C | 17days (167 mm) Wet | 9.7h Good | 86% Very Muggy | 8 Very High | Fair | View Details |
| March | 29°C / 25°C | 35°C / 30°C | 19days (184 mm) Wet | 10.3h Excellent | 84% Humid | 9 Very High | Wet | View Details |
| April | 30°C / 25°C | 37°C / 31°C | 23days (199 mm) Wet | 10.5h Excellent | 84% Humid | 8.8 Very High | Wet | View Details |
| May | 30°C / 25°C | 37°C / 31°C | 29days (385 mm) Wet | 9.9h Good | 87% Very Muggy | 7.8 Very High | Wet | View Details |
| June | 29°C / 25°C | 36°C / 31°C | 30days (451 mm) Wet | 9h Good | 88% Very Muggy | 7.7 Very High | Wet | View Details |
| July | 29°C / 25°C | 36°C / 30°C | 29days (413 mm) Wet | 8.7h Good | 87% Very Muggy | 7.7 Very High | Wet | View Details |
| August | 29°C / 25°C | 36°C / 30°C | 29days (354 mm) Wet | 9.1h Good | 86% Very Muggy | 8.4 Very High | Wet | View Details |
| September | 29°C / 25°C | 36°C / 30°C | 28days (420 mm) Wet | 8.8h Good | 87% Very Muggy | 8.1 Very High | Wet | View Details |
| October | 29°C / 25°C | 36°C / 30°C | 30days (426 mm) Wet | 8.6h Good | 89% Very Muggy | 8.2 Very High | Wet | View Details |
| November | 29°C / 25°C | 36°C / 30°C | 28days (287 mm) Wet | 9.2h Good | 88% Very Muggy | 7.5 Very High | Wet | View Details |
| December | 29°C / 25°C | 35°C / 30°C | 28days (322 mm) Wet | 8.9h Good | 89% Very Muggy | 7.2 Very High | Wet | View Details |
Monthly Temperatures
High Low
Line chart showing monthly temperatures. Jan: 28°C / 25°C . Feb: 28°C / 24°C . Mar: 29°C / 25°C . Apr: 30°C / 25°C . May: 30°C / 25°C . Jun: 29°C / 25°C . Jul: 29°C / 25°C . Aug: 29°C / 25°C . Sep: 29°C / 25°C . Oct: 29°C / 25°C . Nov: 29°C / 25°C . Dec: 29°C / 25°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 248 mm. Feb: 167 mm. Mar: 184 mm. Apr: 199 mm. May: 385 mm. Jun: 451 mm. Jul: 413 mm. Aug: 354 mm. Sep: 420 mm. Oct: 426 mm. Nov: 287 mm. Dec: 322 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 88%. Feb: 86%. Mar: 84%. Apr: 84%. May: 87%. Jun: 88%. Jul: 87%. Aug: 86%. Sep: 87%. Oct: 89%. Nov: 88%. Dec: 89%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 14 km/h . Feb: 15 km/h . Mar: 13 km/h . Apr: 10 km/h . May: 8 km/h . Jun: 8 km/h . Jul: 10 km/h . Aug: 10 km/h . Sep: 10 km/h . Oct: 9 km/h . Nov: 10 km/h . Dec: 11 km/h .
Sea Temperature
Sea Temperature swim
Line chart showing monthly sea temperature. Jan: 28°C . Feb: 27°C . Mar: 28°C . Apr: 29°C . May: 30°C . Jun: 30°C . Jul: 30°C . Aug: 30°C . Sep: 30°C . Oct: 30°C . Nov: 30°C . Dec: 29°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 7. Feb: UV 8. Mar: UV 9. Apr: UV 9. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 8. Oct: UV 8. Nov: UV 8. Dec: UV 7.
Frequently Asked Questions
Siayan has a population of approximately 4.9K.
The best months to visit Siayan are February, when temperatures are pleasant and rainfall is lower.
Siayan receives approximately 3856mm of rainfall annually across 313 rainy days.
Siayan is located in Philippines, in the Asia region.