January
Other strong months: February and December
79/100 weather score
Puerto Rico · 1991–2020
Best time to visit
Adjuntas
For Adjuntas, January has the most comfortable weather in our climate comparison. Typical daytime highs are 26.4°C, nights average 13.2°C, and rainfall totals about 72 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Best all-round monthJanuary
Typical daytime high26.4°C
Typical night-time low13.2°C
January rainfall72 mm
June
Other strong months: December and February
65/100 weather score
February
Other strong months: January and December
63/100 weather score
Make the answer personal
Choose the weather
that suits you.
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.
3 months fit your choices for Adjuntas
September has the lowest comfort score at 30 out of 100, compared with January at 79. The main reason is that 291 mm of rain falls.
Quick answers
Planning a trip to Adjuntas?
These answers come from the same measured monthly climate record shown on this page.
When is the best time to visit Adjuntas?
January is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 26.4°C and 72 mm of rain.
What is the hottest month in Adjuntas?
August is hottest in this record, with a typical daytime high of 29.6°C and a night-time low of 17.1°C.
Which month has the least rain?
February has the lowest monthly rainfall total at 66 mm.
Is this a weather forecast?
No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.
Month by month
See how the weather
changes through the year.
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 | 26.4°C | 13.2°C | 72 mm | 8.6 | 26.8°C | 11 h 09 | 79 | Strong coverage |
| February | 26.7°C | 12.8°C | 66 mm | 8 | 26.5°C | 11 h 31 | 78 | Strong coverage |
| March | 27°C | 13.3°C | 118 mm | 10.3 | 26.5°C | 11 h 59 | 69 | Strong coverage |
| April | 27.6°C | 14.7°C | 188 mm | 12.4 | 27.1°C | 12 h 32 | 58 | Strong coverage |
| May | 28.2°C | 16.2°C | 256 mm | 13.8 | 27.7°C | 12 h 59 | 43 | Strong coverage |
| June | 29.3°C | 16.9°C | 120 mm | 10.3 | 28.2°C | 13 h 13 | 61 | Strong coverage |
| July | 29.5°C | 17°C | 155 mm | 12.8 | 28.4°C | 13 h 07 | 53 | Strong coverage |
| August | 29.6°C | 17.1°C | 228 mm | 14.8 | 28.8°C | 12 h 44 | 40 | Strong coverage |
| September | 29.5°C | 16.9°C | 291 mm | 16.6 | 29.1°C | 12 h 13 | 30 | Strong coverage |
| October | 28.9°C | 16.6°C | 290 mm | 16.9 | 29.0°C | 11 h 42 | 33 | Strong coverage |
| November | 27.8°C | 15.8°C | 185 mm | 14.3 | 28.5°C | 11 h 15 | 55 | Strong coverage |
| December | 26.7°C | 14.2°C | 82 mm | 8.8 | 27.6°C | 11 h 03 | 78 | Strong coverage |
What has changed
Recent daytime highs are
0.2°C warmer in Adjuntas.
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.
Jan
+0.2
Feb
+0.1
Mar
0.0
Apr
+0.2
May
+0.5
Jun
+0.4
Jul
+0.5
Aug
+0.2
Sep
+0.4
Oct
-0.1
Nov
0.0
Dec
+0.1
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 31.7°C5 Jan 1987 | 5.0°C31 Jan 1990 | 93 mm14 Jan 1970 | 209 mm1970 · driest 1 mm in 2026 | 56 |
| February | 31.7°C25 Feb 1990 | 6.1°C2 Feb 1992 | 122 mm5 Feb 1998 | 182 mm1995 · driest 2 mm in 2026 | 56 |
| March | 32.2°C9 Mar 1984 | 4.4°C3 Mar 1993 | 109 mm9 Mar 1992 | 262 mm1989 · driest 2 mm in 2026 | 57 |
| April | 33.9°C26 Apr 1983 | 7.8°C13 Apr 1989 | 134 mm21 Apr 1983 | 471 mm2002 · driest 7 mm in 1997 | 55 |
| May | 33.9°C26 May 1990 | 8.3°C9 May 1989 | 361 mm18 May 1985 | 528 mm1985 · driest 0 mm in 2026 | 56 |
| June | 33.3°C30 Jun 1982 | 10.0°C18 Jun 1989 | 151 mm11 Jun 1979 | 351 mm1979 · driest 0 mm in 2026 | 56 |
| July | 33.3°C15 Jul 1986 | 10.6°C19 Jul 1989 | 91 mm4 Jul 1971 | 339 mm1971 · driest 11 mm in 2023 | 55 |
| August | 33.3°C28 Aug 2010 | 11.1°C31 Aug 2005 | 222 mm25 Aug 1988 | 591 mm2014 · driest 22 mm in 2019 | 56 |
| September | 32.8°C4 Sep 1995 | 7.8°C2 Sep 1986 | 305 mm16 Sep 1975 | 631 mm1975 · driest 9 mm in 2022 | 54 |
| October | 32.8°C17 Oct 1995 | 8.9°C17 Oct 1989 | 297 mm7 Oct 1985 | 704 mm1985 · driest 55 mm in 2025 | 55 |
| November | 33.9°C23 Nov 1980 | 5.6°C30 Nov 1989 | 115 mm28 Nov 1987 | 313 mm2003 · driest 19 mm in 2024 | 55 |
| December | 31.1°C19 Dec 1996 | 4.4°C28 Dec 1989 | 135 mm12 Dec 2007 | 329 mm2007 · driest 2 mm in 2018 | 54 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 26 | <1 | 2 |
| February | 25 | <1 | 2 |
| March | 27 | <1 | 3 |
| April | 29 | <1 | 5 |
| May | 30 | 3 | 7 |
| June | 29 | 11 | 4 |
| July | 30 | 14 | 4 |
| August | 30 | 15 | 7 |
| September | 29 | 13 | 7 |
| October | 30 | 9 | 8 |
| November | 28 | 2 | 4 |
| December | 26 | <1 | 2 |
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | 73% | 27% | 6% | 32% | 25.3–27.1°C |
| February | 73% | 27% | 7% | 27% | 25.6–27.2°C |
| March | 68% | 32% | 10% | 40% | 26.1–27.7°C |
| April | 62% | 38% | 18% | 51% | 26.7–28.1°C |
| May | 58% | 42% | 19% | 57% | 27.3–28.8°C |
| June | 68% | 32% | 13% | 39% | 28.4–29.8°C |
| July | 59% | 41% | 16% | 58% | 28.7–30.0°C |
| August | 53% | 47% | 22% | 71% | 28.9–29.9°C |
| September | 45% | 55% | 26% | 79% | 28.6–30.0°C |
| October | 44% | 56% | 27% | 80% | 27.9–29.6°C |
| November | 55% | 45% | 15% | 58% | 27.0–28.6°C |
| December | 70% | 30% | 6% | 33% | 25.6–27.6°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
Where these figures
come from.
- Place identity
- GeoNames 4562485
- NOAA station
- RQC00660061 · ADJUNTAS SUBSTN
- Station distance
- 8.1 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 25 usable years
- Daylight
- Calculated from latitude 18.16°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Sea temperature
- NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 34 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Adjuntas 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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