

Sison
Sison is a town in Ilocos, Philippines. It has a population of about 51,439 (2024). The climate is classified as tropical monsoon (Köppen Am), with .
Best: Jan–Mar. Warmth, sunshine and dry days, month by month.
Sison at a glance
The months with the highest weather score
Average high in April
Average low in January
660 mm of rain
18 mm of rain
within 15 km
Weather in Sison
Now and the next ten days. The 14 and 30-day outlooks are one click away.
Cloudy · wind 17 km/h · humidity 83%
When to go to Sison
Each month's weather score (warmth, sun, dry days) with its temperatures and rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Score | 71 | 64 | 55 | 42 | 34 | 34 | 36 | 35 | 38 | 42 | 46 | 53 |
| High | 28° | 29° | 30° | 32° | 31° | 30° | 29° | 29° | 29° | 29° | 29° | 28° |
| Low | 22° | 22° | 23° | 24° | 25° | 25° | 24° | 24° | 24° | 24° | 23° | 22° |
| Rain (mm) | 18 | 21 | 36 | 87 | 266 | 453 | 660 | 753 | 489 | 333 | 86 | 28 |
| Wet days | 7 | 8 | 9 | 13 | 26 | 28 | 30 | 30 | 30 | 26 | 18 | 17 |
What's on in Sison
Concerts, football matches, the public holidays ahead and the town's festivals through the year.
Monuments and museums in Sison
Outdoors around Sison
Hiking routes from the town, and what there is to do within 15 km: huts, viewpoints, climbing, camping, ski areas and dive sites.
Nature around Sison
Wildlife in October
The birds and mammals of Philippines seen most this month, compared with the rest of their year.
The sky over Sison
Earthquakes around Sison
The last 30 days within 300 km, and the record since 1950.
Strongest nearby since 1950
Tropical storms · Sison
Towns and villages around Sison
Each with its own page: weather, climate and the best time to visit.
Sison from above
Postal code
Getting to Sison
Places near Sison
Places with a climate like Sison
Matched month by month on temperature, rain and sunshine.