Isabela weather in May
In May, Isabela sees average daytime highs of 33°C and overnight lows near 25°C, with 195 mm of rain across 24 wet days and about 12.5 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.
Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 11% of the time in May, and the air most often feels miserable.
Daylight stretches from about 12 h 24 min at the start of May to 12 h 30 min by month's end. Set against the rest of the year, May is Isabela's 7th-clearest and 11th-windiest month. For the whole year in context, see Isabela's year-round climate.
- Daytime high
- 33°
- 2nd warmest
- Overnight low
- 25°
- 12th coldest
- Rainfall
- 195 mm
- 24 wet days
- Daylight
- 12 h 30 min
- 5:30 AM – 5:58 PM
- Cloud cover
- 76%
- 7th clearest
- Wind
- 6 km/h
- 11th windiest
- Solar energy
- 5.46 kWh/m²
- Travel score
- 2.5
- out of 10
Isabela is municipality of the Philippines in the province of Negros Occidental.
- Density
- 89/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Day-to-day highs hold fairly steady near 33°C through the month.
A typical May day in Isabela reaches about 33°C in the afternoon and slips back to 25°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, May runs on par with April and about 1°C warmer than June.
| 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) | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 33 | 25 |
| 2 | 33 | 25 |
| 3 | 33 | 25 |
| 4 | 33 | 25 |
| 5 | 33 | 25 |
| 6 | 33 | 25 |
| 7 | 33 | 25 |
| 8 | 33 | 25 |
| 9 | 33 | 25 |
| 10 | 33 | 25 |
| 11 | 33 | 25 |
| 12 | 33 | 25 |
| 13 | 33 | 25 |
| 14 | 33 | 25 |
| 15 | 33 | 25 |
| 16 | 33 | 25 |
| 17 | 32 | 25 |
| 18 | 32 | 25 |
| 19 | 32 | 25 |
| 20 | 32 | 25 |
| 21 | 32 | 25 |
| 22 | 32 | 25 |
| 23 | 32 | 25 |
| 24 | 32 | 25 |
| 25 | 32 | 25 |
| 26 | 32 | 25 |
| 27 | 32 | 25 |
| 28 | 32 | 25 |
| 29 | 32 | 25 |
| 30 | 32 | 25 |
| 31 | 32 | 25 |
How May really feels in Isabela
Once humidity and wind are folded in, May 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 May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Isabela weather by month
How May compares with the rest of the year at a glance. May is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 23° | 88 | 13.2 | 11.5 | 4.4 |
| Feb | 31° / 23° | 81 | 9.9 | 11.7 | 4.4 |
| Mar | 32° / 24° | 78 | 10.5 | 11.9 | 4.0 |
| Apr | 33° / 25° | 79 | 11.4 | 12.2 | 3.2 |
| May | 33° / 25° | 195 | 24 | 12.5 | 2.5 |
| Jun | 31° / 24° | 296 | 27.9 | 12.6 | 2.4 |
| Jul | 30° / 24° | 341 | 29.3 | 12.5 | 2.6 |
| Aug | 30° / 24° | 293 | 27.7 | 12.3 | 2.7 |
| Sep | 30° / 24° | 309 | 28.4 | 12.1 | 2.6 |
| Oct | 30° / 24° | 275 | 28.2 | 11.8 | 2.7 |
| Nov | 31° / 24° | 168 | 20.5 | 11.5 | 3.3 |
| Dec | 30° / 24° | 168 | 18 | 11.4 | 3.9 |
Cloud cover in May
The sky is clear or mostly clear about 11% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 73%. Skies tend to cloud over 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 (%) | 43 | 41 | 41 | 39 | 38 | 36 | 35 | 33 | 32 | 31 | 29 | 28 | 28 | 26 | 25 | 24 | 24 | 24 | 22 | 21 | 20 | 20 | 20 | 19 | 19 | 18 | 18 | 18 | 16 | 16 | 16 |
| Cloudier (%) | 57 | 59 | 59 | 61 | 62 | 64 | 65 | 67 | 68 | 69 | 71 | 72 | 72 | 74 | 75 | 76 | 76 | 76 | 78 | 79 | 80 | 80 | 80 | 81 | 81 | 82 | 82 | 82 | 84 | 84 | 84 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 43 | 57 |
| 2 | 41 | 59 |
| 3 | 41 | 59 |
| 4 | 39 | 61 |
| 5 | 38 | 62 |
| 6 | 36 | 64 |
| 7 | 35 | 65 |
| 8 | 33 | 67 |
| 9 | 32 | 68 |
| 10 | 31 | 69 |
| 11 | 29 | 71 |
| 12 | 28 | 72 |
| 13 | 28 | 72 |
| 14 | 26 | 74 |
| 15 | 25 | 75 |
| 16 | 24 | 76 |
| 17 | 24 | 76 |
| 18 | 24 | 76 |
| 19 | 22 | 78 |
| 20 | 21 | 79 |
| 21 | 20 | 80 |
| 22 | 20 | 80 |
| 23 | 20 | 80 |
| 24 | 19 | 81 |
| 25 | 19 | 81 |
| 26 | 18 | 82 |
| 27 | 18 | 82 |
| 28 | 18 | 82 |
| 29 | 16 | 84 |
| 30 | 16 | 84 |
| 31 | 16 | 84 |
Chance of precipitation in May
Isabela gets around 195 mm of rain over 24 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 76% and peaks near 89% 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 (%) | 54 | 56 | 58 | 60 | 62 | 64 | 65 | 67 | 69 | 71 | 72 | 74 | 76 | 77 | 79 | 80 | 81 | 82 | 83 | 84 | 84 | 85 | 86 | 86 | 87 | 87 | 88 | 88 | 88 | 89 | 89 |
| Rain chance (%) | |
|---|---|
| 1 | 54 |
| 2 | 56 |
| 3 | 58 |
| 4 | 60 |
| 5 | 62 |
| 6 | 64 |
| 7 | 65 |
| 8 | 67 |
| 9 | 69 |
| 10 | 71 |
| 11 | 72 |
| 12 | 74 |
| 13 | 76 |
| 14 | 77 |
| 15 | 79 |
| 16 | 80 |
| 17 | 81 |
| 18 | 82 |
| 19 | 83 |
| 20 | 84 |
| 21 | 84 |
| 22 | 85 |
| 23 | 86 |
| 24 | 86 |
| 25 | 87 |
| 26 | 87 |
| 27 | 88 |
| 28 | 88 |
| 29 | 88 |
| 30 | 89 |
| 31 | 89 |
Humidity in May
Most of May feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the miserable band about 81% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Muggy (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Oppressive (%) | 37 | 36 | 35 | 33 | 32 | 31 | 30 | 28 | 27 | 26 | 25 | 23 | 22 | 21 | 19 | 18 | 17 | 16 | 15 | 13 | 12 | 11 | 10 | 9 | 8 | 8 | 7 | 7 | 7 | 6 | 6 |
| Miserable (%) | 62 | 63 | 64 | 66 | 67 | 68 | 69 | 71 | 73 | 74 | 75 | 77 | 78 | 79 | 81 | 82 | 83 | 84 | 85 | 87 | 88 | 89 | 90 | 91 | 92 | 92 | 93 | 93 | 93 | 94 | 94 |
| Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|
| 1 | 1 | 37 | 62 |
| 2 | 1 | 36 | 63 |
| 3 | 1 | 35 | 64 |
| 4 | 1 | 33 | 66 |
| 5 | 1 | 32 | 67 |
| 6 | 1 | 31 | 68 |
| 7 | 1 | 30 | 69 |
| 8 | 1 | 28 | 71 |
| 9 | 0 | 27 | 73 |
| 10 | 0 | 26 | 74 |
| 11 | 0 | 25 | 75 |
| 12 | 0 | 23 | 77 |
| 13 | 0 | 22 | 78 |
| 14 | 0 | 21 | 79 |
| 15 | 0 | 19 | 81 |
| 16 | 0 | 18 | 82 |
| 17 | 0 | 17 | 83 |
| 18 | 0 | 16 | 84 |
| 19 | 0 | 15 | 85 |
| 20 | 0 | 13 | 87 |
| 21 | 0 | 12 | 88 |
| 22 | 0 | 11 | 89 |
| 23 | 0 | 10 | 90 |
| 24 | 0 | 9 | 91 |
| 25 | 0 | 8 | 92 |
| 26 | 0 | 8 | 92 |
| 27 | 0 | 7 | 93 |
| 28 | 0 | 7 | 93 |
| 29 | 0 | 7 | 93 |
| 30 | 0 | 6 | 94 |
| 31 | 0 | 6 | 94 |
Wind in May
Winds average 6 km/h in May.
Across May, daily wind ranges from about 5 km/h on the calmest days to 6 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) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| 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 | 6 | calm |
| 2 | 6 | calm |
| 3 | 6 | calm |
| 4 | 6 | calm |
| 5 | 6 | calm |
| 6 | 6 | calm |
| 7 | 6 | calm |
| 8 | 6 | calm |
| 9 | 6 | calm |
| 10 | 6 | calm |
| 11 | 6 | calm |
| 12 | 6 | calm |
| 13 | 6 | calm |
| 14 | 6 | calm |
| 15 | 6 | calm |
| 16 | 6 | calm |
| 17 | 6 | calm |
| 18 | 6 | calm |
| 19 | 5 | calm |
| 20 | 5 | calm |
| 21 | 5 | calm |
| 22 | 5 | calm |
| 23 | 5 | calm |
| 24 | 5 | calm |
| 25 | 5 | calm |
| 26 | 5 | calm |
| 27 | 5 | calm |
| 28 | 5 | calm |
| 29 | 5 | calm |
| 30 | 5 | calm |
| 31 | 5 | calm |
Sunrise & sunset in May
Daylight runs from about 12 h 24 min at the start of May to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 6 minutes over May. Sunrise moves from 5:35 AM to 5:29 AM, and sunset from 5:56 PM to 6:02 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) | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 |
| Sunrise (AM) | 5:35 | 5:34 | 5:34 | 5:33 | 5:33 | 5:33 | 5:33 | 5:32 | 5:32 | 5:32 | 5:31 | 5:31 | 5:31 | 5:31 | 5:30 | 5:30 | 5:30 | 5:30 | 5:30 | 5:30 | 5:30 | 5:29 | 5:29 | 5:29 | 5:29 | 5:29 | 5:29 | 5:29 | 5:29 | 5:29 | 5:29 |
| Sunset (PM) | 5:56 | 5:56 | 5:56 | 5:56 | 5:56 | 5:57 | 5:57 | 5:57 | 5:57 | 5:57 | 5:57 | 5:58 | 5:58 | 5:58 | 5:58 | 5:58 | 5:58 | 5:59 | 5:59 | 5:59 | 5:59 | 6:00 | 6:00 | 6:00 | 6:00 | 6:01 | 6:01 | 6:01 | 6:01 | 6:02 | 6:02 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.4 | 5:35 | 5:56 |
| 2 | 12.4 | 5:34 | 5:56 |
| 3 | 12.4 | 5:34 | 5:56 |
| 4 | 12.4 | 5:33 | 5:56 |
| 5 | 12.4 | 5:33 | 5:56 |
| 6 | 12.4 | 5:33 | 5:57 |
| 7 | 12.4 | 5:33 | 5:57 |
| 8 | 12.4 | 5:32 | 5:57 |
| 9 | 12.4 | 5:32 | 5:57 |
| 10 | 12.4 | 5:32 | 5:57 |
| 11 | 12.4 | 5:31 | 5:57 |
| 12 | 12.4 | 5:31 | 5:58 |
| 13 | 12.4 | 5:31 | 5:58 |
| 14 | 12.5 | 5:31 | 5:58 |
| 15 | 12.5 | 5:30 | 5:58 |
| 16 | 12.5 | 5:30 | 5:58 |
| 17 | 12.5 | 5:30 | 5:58 |
| 18 | 12.5 | 5:30 | 5:59 |
| 19 | 12.5 | 5:30 | 5:59 |
| 20 | 12.5 | 5:30 | 5:59 |
| 21 | 12.5 | 5:30 | 5:59 |
| 22 | 12.5 | 5:29 | 6:00 |
| 23 | 12.5 | 5:29 | 6:00 |
| 24 | 12.5 | 5:29 | 6:00 |
| 25 | 12.5 | 5:29 | 6:00 |
| 26 | 12.5 | 5:29 | 6:01 |
| 27 | 12.5 | 5:29 | 6:01 |
| 28 | 12.5 | 5:29 | 6:01 |
| 29 | 12.5 | 5:29 | 6:01 |
| 30 | 12.5 | 5:29 | 6:02 |
| 31 | 12.5 | 5:29 | 6:02 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 5.46 kWh/m².
For context, solar energy here swings from a low near 4.22 kWh/m² to a high of 6.17 kWh/m² in April across the year — May's 5.46 kWh/m² sits near the top of that range.
| 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) | 5.9 | 5.9 | 5.8 | 5.8 | 5.8 | 5.7 | 5.7 | 5.7 | 5.6 | 5.6 | 5.6 | 5.5 | 5.5 | 5.5 | 5.5 | 5.4 | 5.4 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 |
| 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 | 5.9 | Bright |
| 2 | 5.9 | Bright |
| 3 | 5.8 | Bright |
| 4 | 5.8 | Bright |
| 5 | 5.8 | Bright |
| 6 | 5.7 | Bright |
| 7 | 5.7 | Bright |
| 8 | 5.7 | Bright |
| 9 | 5.6 | Bright |
| 10 | 5.6 | Bright |
| 11 | 5.6 | Bright |
| 12 | 5.5 | Bright |
| 13 | 5.5 | Bright |
| 14 | 5.5 | Bright |
| 15 | 5.5 | Bright |
| 16 | 5.4 | Bright |
| 17 | 5.4 | Bright |
| 18 | 5.4 | Bright |
| 19 | 5.4 | Bright |
| 20 | 5.3 | Bright |
| 21 | 5.3 | Bright |
| 22 | 5.3 | Bright |
| 23 | 5.3 | Bright |
| 24 | 5.3 | Bright |
| 25 | 5.3 | Bright |
| 26 | 5.3 | Bright |
| 27 | 5.3 | Bright |
| 28 | 5.3 | Bright |
| 29 | 5.2 | Bright |
| 30 | 5.2 | Bright |
| 31 | 5.2 | Bright |
Hazard calendar for Isabela
In May, Isabela sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
Isabela sits in the Pacific typhoon belt; the season peaks July–October.
Isabela's rainy season runs May–December, when most of the year's rain falls.
Is May a good time to visit Isabela?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is a weaker month for outdoor sightseeing in Isabela.
What to pack for Isabela in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Isabela sees daytime highs around 33°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.
Sea temperature near Isabela in May
The nearest coast averages about 30°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 15 km away) is warmest in June at about 30°C and coldest in February near 27°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) | 27 | 27 | 28 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 28 | Warm |
| Apr | 29 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Tropical |
UV index in Isabela in May
Clear-sky midday UV in May peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Isabela peaks around March 24 at about 14 (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) | 11 | 13 | 14 | 14 | 12 | 13 | 13 | 13 | 12 | 11 | 9 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 13 | Extreme |
| Mar | 14 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 13 | Extreme |
| Jul | 13 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 10 | Very high |
Air quality in Isabela in May
Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.
Air quality in Isabela is worst in September — around 17 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) | 14 | 13 | 14 | 15 | 16 | 16 | 17 | 16 | 17 | 17 | 15 | 14 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 13 | Moderate |
| Mar | 14 | Moderate |
| Apr | 15 | Moderate |
| May | 16 | Moderate |
| Jun | 16 | Moderate |
| Jul | 17 | Moderate |
| Aug | 16 | Moderate |
| Sep | 17 | Moderate |
| Oct | 17 | Moderate |
| Nov | 15 | Moderate |
| Dec | 14 | Moderate |
Where is Isabela?
Isabela sits at 10.2°N, 123.0°E, 30 m above sea level, in Philippines. The nearest listed city is Tinongan, 5.0 km away.
Topography around Isabela
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Isabela.
Within 3 km, the terrain around Isabela has significant variations in elevation — a maximum elevation change of 323 m around an average of 30 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,233 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,458 m.
The land around Isabela is covered by cropland (61%) and trees (32%) within 3 km, trees (50%) and cropland (38%) within 16 km, and trees (45%) and water (41%) within 80 km.
Philippines travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C
- 230 V · 60 Hz
- Prices
- ≈ 33% of US
- price level, 2025
- GDP per capita
- $4,171
- 2025
- Happiness
- 6.2 / 10
- World Happiness, 2025
- Safe drinking water
- 48%
- of population, 2024
- Homicide rate
- 4.3
- per 100k, 2023
- Road deaths
- 12
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- High
- EF EPI 569
- 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 Isabela (10.2048°, 122.9888°, elevation 30 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).