January
Other strong months: February and December
Philippines · 1991–2020
For City of Isabela, January has the most comfortable weather in our climate comparison. Typical daytime highs are 32.3°C, nights average 23.3°C, and rainfall totals about 85 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Other strong months: February and December
Other strong months: February and March
Other strong months: February and March
Make the answer personal
Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.
5 months fit your choices for City of Isabela
October has the lowest comfort score at 18 out of 100, compared with January at 45. The main reason is that days average 32.4°C, 8° above the 24°C the score treats as ideal, and 228 mm of rain falls.
Quick answers
These answers come from the same measured monthly climate record shown on this page.
January is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 32.3°C and 85 mm of rain.
April is hottest in this record, with a typical daytime high of 33.3°C and a night-time low of 24.2°C.
January has the lowest monthly rainfall total at 85 mm.
No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.
Month by month
The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.
| Month | Day | Night | Rain | Wet days | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 32.3°C | 23.3°C | 85 mm | 9.2 | 27.9°C | 11 h 46 | 45 | Good coverage |
| February | 32.7°C | 23.4°C | 97 mm | 7.9 | 27.8°C | 11 h 54 | 43 | Good coverage |
| March | 33.1°C | 23.8°C | 92 mm | 9.1 | 28.0°C | 12 h 04 | 41 | Good coverage |
| April | 33.3°C | 24.2°C | 95 mm | 9.7 | 28.5°C | 12 h 16 | 38 | Good coverage |
| May | 33°C | 24.6°C | 115 mm | 11.2 | 28.8°C | 12 h 25 | 34 | Good coverage |
| June | 32.4°C | 24.4°C | 162 mm | 14.5 | 28.9°C | 12 h 31 | 27 | Strong coverage |
| July | 32.1°C | 24.2°C | 182 mm | 15.2 | 28.6°C | 12 h 29 | 25 | Good coverage |
| August | 32.4°C | 24.3°C | 168 mm | 13.3 | 28.6°C | 12 h 20 | 28 | Good coverage |
| September | 32.5°C | 24.1°C | 200 mm | 13.6 | 28.7°C | 12 h 09 | 23 | Good coverage |
| October | 32.4°C | 24°C | 228 mm | 15.5 | 28.8°C | 11 h 58 | 18 | Strong coverage |
| November | 32.8°C | 23.9°C | 129 mm | 11.6 | 28.8°C | 11 h 48 | 34 | Strong coverage |
| December | 32.7°C | 23.7°C | 92 mm | 9.9 | 28.5°C | 11 h 44 | 42 | Good coverage |
What has changed
Each bar shows the difference between the 2011–2025 average daytime high and the 1961–1990 average for the same month at the same station. A blank month does not have enough older observations for a reliable comparison.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 36.0°C3 Jan 2022 | 15.8°C22 Jan 1965 | 122 mm4 Jan 2002 | 218 mm2023 · driest 0 mm in 2016 | 74 |
| February | 37.6°C15 Feb 1982 | 16.1°C18 Feb 1968 | 192 mm12 Feb 2011 | 350 mm2011 · driest 0 mm in 2010 | 75 |
| March | 37.0°C31 Mar 2015 | 17.0°C24 Mar 2002 | 108 mm28 Mar 2003 | 236 mm1999 · driest 0 mm in 2010 | 75 |
| April | 37.9°C18 Apr 2020 | 16.7°C7 Apr 1967 | 93 mm12 Apr 2018 | 250 mm1956 · driest 0 mm in 1971 | 75 |
| May | 38.0°C16 May 2003 | 20.7°C11 May 1954 | 89 mm13 May 1990 | 267 mm2008 · driest 0 mm in 2015 | 74 |
| June | 37.8°C1 Jun 2024 | 20.5°C19 Jun 1985 | 134 mm24 Jun 2010 | 368 mm2008 · driest 23 mm in 2016 | 75 |
| July | 36.2°C24 Jul 2021 | 19.6°C28 Jul 2010 | 170 mm13 Jul 2024 | 332 mm2003 · driest 6 mm in 2018 | 75 |
| August | 36.2°C2 Aug 2023 | 19.8°C16 Aug 2010 | 137 mm29 Aug 1952 | 460 mm1999 · driest 5 mm in 1985 | 74 |
| September | 36.0°C22 Sep 2022 | 19.2°C29 Sep 2010 | 193 mm29 Sep 1990 | 356 mm1962 · driest 0 mm in 2019 | 72 |
| October | 36.4°C20 Oct 2023 | 19.3°C5 Oct 1955 | 204 mm10 Oct 2001 | 636 mm2013 · driest 5 mm in 2015 | 74 |
| November | 38.5°C7 Nov 2007 | 19.5°C15 Nov 1968 | 163 mm27 Nov 1955 | 356 mm1955 · driest 1 mm in 2003 | 73 |
| December | 36.4°C19 Dec 2023 | 17.7°C18 Dec 1960 | 104 mm15 Dec 1976 | 259 mm1956 · driest 0 mm in 2019 | 73 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 28 | 27 | 2 |
| February | 25 | 25 | 2 |
| March | 27 | 27 | 1 |
| April | 27 | 27 | 2 |
| May | 27 | 27 | 3 |
| June | 27 | 25 | 4 |
| July | 28 | 25 | 4 |
| August | 28 | 26 | 4 |
| September | 27 | 26 | 4 |
| October | 28 | 26 | 5 |
| November | 27 | 26 | 3 |
| December | 28 | 27 | 2 |
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | 77% | 23% | 6% | 20% | 31.1–33.3°C |
| February | 79% | 22% | 6% | 19% | 31.3–33.5°C |
| March | 78% | 22% | 5% | 21% | 31.7–34.0°C |
| April | 74% | 27% | 7% | 27% | 32.0–34.0°C |
| May | 64% | 36% | 10% | 48% | 31.7–34.0°C |
| June | 54% | 46% | 15% | 70% | 30.9–33.3°C |
| July | 57% | 44% | 15% | 61% | 30.7–32.9°C |
| August | 58% | 42% | 15% | 58% | 30.9–33.2°C |
| September | 59% | 42% | 16% | 56% | 30.8–33.3°C |
| October | 56% | 45% | 19% | 59% | 30.8–33.2°C |
| November | 60% | 39% | 12% | 52% | 31.3–33.8°C |
| December | 72% | 28% | 8% | 31% | 31.1–33.4°C |
A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.
The evidence behind this page
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The weather comparison for City of Isabela is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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