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Guiuan climate by month
What the weather is like
Guiuan has a tropical rainforest climate (Köppen Af): .
The warmest month is August, when afternoons average 29° and nights 27°. January is the coolest month, with highs of 27° and lows of 25°. The difference between the warmest and the coolest month is about 2°, a small seasonal swing typical of places tempered by the sea.
About 3,202 mm of precipitation falls in an average year. October is the wettest month (284 mm, 30 wet days) and April the driest (148 mm, 22 wet days). Cloud cover ranges from 30% in April to 66% in July.
The sea reaches about 30° in June. Sea temperatures lag the air by a month or two, so late summer is usually warmer for swimming than early summer.
Compared with Manila, the capital, Guiuan is 0.2° cooler on a August afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 29° · August
- Coldest nights
- 25° · January
- Wettest month
- October
- Driest month
- April
- Clearest skies
- April · 30% cloud
- Warmest sea
- 30° · June
- Longest day
- 12 h 46 min
- Shortest day
- 11 h 29 min
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columns, sea temperature lineTemperature curve
Average high, low and seaDaylight
Hours between sunrise and sunset on the 15th of each monthClimate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 27° | 27° | 27° | 28° | 28° | 29° | 29° | 29° | 29° | 28° | 28° | 27° |
| Average low | 25° | 25° | 26° | 26° | 27° | 27° | 27° | 27° | 27° | 26° | 26° | 26° |
| Precipitation | 426 mm | 308 mm | 251 mm | 148 mm | 157 mm | 191 mm | 193 mm | 151 mm | 170 mm | 284 mm | 430 mm | 493 mm |
| Wet days (≥1 mm) | 29.5 | 24.7 | 23.2 | 22 | 23.8 | 28.7 | 29.7 | 27.2 | 29.2 | 29.8 | 28.8 | 29.7 |
| Cloud cover | 45% | 40% | 32% | 30% | 42% | 59% | 66% | 66% | 63% | 56% | 52% | 48% |
| Sea temperature | 27° | 27° | 28° | 29° | 29° | 30° | 29° | 29° | 29° | 29° | 29° | 28° |
| Daylight | 11h 33 | 11h 47 | 12h 03 | 12h 22 | 12h 38 | 12h 46 | 12h 43 | 12h 30 | 12h 12 | 11h 54 | 11h 38 | 11h 29 |
| Month score | 54 | 56 | 58 | 56 | 48 | 40 | 37 | 36 | 39 | 43 | 47 | 51 |