January
Other strong months: February and March
79/100 weather score
United States · 1991–2020
Best time to visit
Hālawa
For Hālawa, January has the most comfortable weather in our climate comparison. Typical daytime highs are 26.9°C, nights average 19.3°C, and rainfall totals about 46 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Best all-round monthJanuary
Typical daytime high26.9°C
Typical night-time low19.3°C
January rainfall46 mm
April
Other strong months: May and November
97/100 weather score
January
Other strong months: February and April
58/100 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.
6 months fit your choices for Hālawa
August has the lowest comfort score at 59 out of 100, compared with January at 79. The main reason is that days average 31.5°C, 8° above the 24°C the score treats as ideal, and nights stay at 24.2°C.
Quick answers
Planning a trip to Hālawa?
These answers come from the same measured monthly climate record shown on this page.
When is the best time to visit Hālawa?
January is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 26.9°C and 46 mm of rain.
What is the hottest month in Hālawa?
August is hottest in this record, with a typical daytime high of 31.5°C and a night-time low of 24.2°C.
Which month has the least rain?
June and July have the lowest monthly rainfall total at 13 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 | 26.9°C | 19.3°C | 46 mm | 5.1 | 24.4°C | 10 h 58 | 79 | Strong coverage |
| February | 27°C | 19.5°C | 49 mm | 4.9 | 24.0°C | 11 h 25 | 78 | Strong coverage |
| March | 27.3°C | 20.1°C | 60 mm | 5.3 | 24.0°C | 11 h 58 | 74 | Strong coverage |
| April | 28.4°C | 21.1°C | 19 mm | 3.6 | 24.4°C | 12 h 37 | 74 | Strong coverage |
| May | 29.3°C | 22°C | 21 mm | 2.8 | 25.0°C | 13 h 09 | 70 | Strong coverage |
| June | 30.5°C | 23.2°C | 13 mm | 2 | 25.7°C | 13 h 26 | 64 | Strong coverage |
| July | 31.2°C | 23.9°C | 13 mm | 2.6 | 26.0°C | 13 h 19 | 60 | Strong coverage |
| August | 31.5°C | 24.2°C | 21 mm | 2.4 | 26.5°C | 12 h 52 | 59 | Strong coverage |
| September | 31.3°C | 23.8°C | 21 mm | 3.5 | 26.8°C | 12 h 14 | 60 | Strong coverage |
| October | 30.5°C | 23.3°C | 38 mm | 4 | 26.7°C | 11 h 37 | 62 | Strong coverage |
| November | 29°C | 22.1°C | 57 mm | 4.7 | 26.0°C | 11 h 05 | 66 | Strong coverage |
| December | 27.7°C | 20.7°C | 55 mm | 4.9 | 25.1°C | 10 h 50 | 73 | Strong coverage |
What has changed
Recent daytime highs are
0.2°C warmer in Hālawa.
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
+0.5
Feb
+0.4
Mar
0.0
Apr
+0.4
May
0.0
Jun
+0.1
Jul
+0.3
Aug
0.0
Sep
-0.1
Oct
+0.1
Nov
+0.1
Dec
+0.4
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 31.1°C21 Jan 1996 | 11.1°C20 Jan 1969 | 163 mm7 Jan 1963 | 339 mm1957 · driest 0 mm in 1944 | 85 |
| February | 31.1°C6 Feb 2023 | 11.7°C9 Feb 1981 | 140 mm23 Feb 1955 | 347 mm1955 · driest 1 mm in 2022 | 85 |
| March | 31.7°C17 Mar 1960 | 12.8°C13 Mar 1976 | 389 mm5 Mar 1958 | 528 mm1951 · driest 0 mm in 1957 | 86 |
| April | 32.8°C28 Apr 1996 | 13.3°C22 Apr 1958 | 99 mm14 Apr 1972 | 227 mm1963 · driest 0 mm in 1944 | 86 |
| May | 33.9°C31 May 1988 | 15.6°C2 May 1989 | 87 mm2 May 1965 | 184 mm1965 · driest 0 mm in 1942 | 87 |
| June | 33.5°C1 Jun 1945 | 18.3°C7 Jun 1979 | 107 mm25 Jun 2019 | 145 mm2019 · driest 0 mm in 1959 | 86 |
| July | 34.4°C15 Jul 1995 | 18.9°C23 Jul 1955 | 55 mm20 Jul 1989 | 69 mm2016 · driest 1 mm in 2026 | 85 |
| August | 35.0°C31 Aug 2019 | 18.3°C19 Aug 2009 | 91 mm24 Aug 2015 | 194 mm2015 · driest 0 mm in 2025 | 84 |
| September | 35.0°C19 Sep 1994 | 17.8°C22 Sep 2019 | 35 mm11 Sep 2015 | 114 mm2015 · driest 1 mm in 1977 | 85 |
| October | 34.4°C6 Oct 1984 | 16.1°C27 Oct 1993 | 190 mm30 Oct 1978 | 283 mm1978 · driest 1 mm in 2021 | 86 |
| November | 33.9°C6 Nov 1986 | 13.9°C25 Nov 1990 | 140 mm20 Nov 1940 | 477 mm1996 · driest 1 mm in 1962 | 86 |
| December | 31.7°C1 Dec 1979 | 12.2°C20 Dec 1962 | 201 mm6 Dec 2021 | 439 mm1987 · driest 0 mm in 2012 | 86 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 29 | <1 | 1 |
| February | 27 | <1 | 1 |
| March | 29 | <1 | 1 |
| April | 30 | 5 | <1 |
| May | 31 | 13 | <1 |
| June | 30 | 23 | <1 |
| July | 31 | 28 | <1 |
| August | 31 | 30 | <1 |
| September | 30 | 28 | <1 |
| October | 31 | 24 | <1 |
| November | 30 | 9 | 1 |
| December | 30 | 2 | 1 |
The best month has moved. On the 1961–1990 numbers the strongest month here was February (scoring 81); on 2011–2025 it is January (79). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | 81% | 19% | 6% | 17% | 25.8–27.7°C |
| February | 81% | 20% | 5% | 18% | 25.8–27.9°C |
| March | 82% | 18% | 4% | 15% | 26.1–28.4°C |
| April | 86% | 14% | 2% | 10% | 27.0–29.1°C |
| May | 90% | 10% | 2% | 6% | 27.9–30.2°C |
| June | 94% | 6% | <1% | 2% | 29.0–31.2°C |
| July | 92% | 8% | <1% | 3% | 29.5–31.8°C |
| August | 92% | 9% | 1% | 5% | 29.8–32.4°C |
| September | 90% | 11% | 2% | 6% | 30.0–32.2°C |
| October | 86% | 14% | 3% | 11% | 29.1–31.3°C |
| November | 84% | 16% | 5% | 15% | 27.8–30.0°C |
| December | 81% | 20% | 6% | 20% | 26.2–28.4°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
Where these figures
come from.
- Place identity
- GeoNames 5855319
- NOAA station
- USW00022521 · HONOLULU INTL AP
- Station distance
- 6.4 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 29 usable years
- Daylight
- Calculated from latitude 21.38°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Sea temperature
- NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 5 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 Hālawa 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.
How travel partnerships will work