Hottest (avg)
#10 / 12
On the cooler side.
January in context
How it compares to the rest of the year in Honolulu.
Wettest (avg)
#3 / 12
Among the wetter months.
Daylight Hours
#11 / 12
Shorter days.
Windiest (avg)
#12 / 12
Usually calmer than most months.
Highest UV
#11 / 12
UV is gentler than usual.
Most Humid
#5 / 12
Humidity stays close to the yearly norm.
Monthly climate breakdown
A detailed look at the typical climate conditions for January.
Thermal profile
Temperature
Typical daytime high
- Nighttime low
-
- Feels like (avg)
-
Light window
Sunshine
11 h
Average daylight
- UV index (max)
- 7
- Typical sun hours
- 07:10 - 18:10
Wet-day pattern
Rain & Snow
Typical rainfall
- Rainy days
- 12 days
- Cloud cover (avg)
- 40%
Air feel
Humidity & Wind
73%
Average humidity
- Wind (avg)
-
- Wind (max gusts)
-
Historical daily baseline
Daily climate explorer
Pick a day to inspect the usual conditions through January in Honolulu. Based on a 30-year historical climate baseline, not a forecast.
Primary control
Select a day
Scroll to compare daily conditions. The summary updates with your selection.
Secondary context
Monthly trend
Median daytime highs across the month, with a softer low line.
Median temperatureMedian lowTypical range
Day 15 selected for January. Temperature 25.0°C.
Historical disruption baseline
Typical disruptions in January
Based on 30 years of historical data, these are the disruption patterns most likely to affect plans in January.
Wind High impact
Strong gusts Measures: Strong gust days (>=60 km/h). Observed about 14% of days (4.3 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
4.3 days / month
- Share of days
- ~14% of days
- Upper edge
- Up to ~79km/h (P95)
Why this matters
Strong gusts are possible on ~4 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Rain High impact
Rain disruption Measures: Likely rain disruption days. Observed about 6% of days (1.9 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
1.9 days / month
- Share of days
- ~6% of days
- Upper edge
- Up to ~35mm (P95)
Why this matters
Rain disruption risk appears on ~2 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain High impact
Washout risk Measures: Washout day risk. Observed about 6% of days (1.8 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
1.8 days / month
- Share of days
- ~6% of days
- Upper edge
- Up to ~36mm (P95)
Why this matters
Washout conditions are possible on ~2 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Wind High impact
Stormy conditions Measures: Storm-impact proxy days. Observed about 2% of days (0.6 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
0.6 days / month
- Share of days
- ~2% of days
- Upper edge
- Up to ~103km/h (P95)
Why this matters
Stormy conditions are possible on ~1 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Humidity Moderate
Muggy days Measures: Muggy days (dew point >=20C). Observed about 8% of days (2.5 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
2.5 days / month
- Share of days
- ~8% of days
- Upper edge
- Up to ~22°C (P95)
Why this matters
Muggy conditions are possible on ~3 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Show all disruptions (16 more)
Rain High impact
Heavy rain days Measures: Heavy rain days (>=10mm). Observed about 3% of days (1.0 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
1.0 days / month
- Share of days
- ~3% of days
- Upper edge
- Up to ~42mm (P95)
Why this matters
Heavy rain is possible on ~1 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain High impact
Very heavy rain Measures: Very heavy rain days (>=25mm). Observed about 1% of days (0.3 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
0.3 days / month
- Share of days
- ~1% of days
- Upper edge
- Up to ~49mm (P95)
Why this matters
Very heavy rain is possible on ~0 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain High impact
Washout run Measures: Multi-day washout runs. Observed about 0.3 days/month in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
0.3 days / month
- Share of days
- —
- Upper edge
- Up to ~43mm (P95)
Why this matters
Multi-day washout runs are possible on ~0 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Wind High impact
Severe gusts Measures: Severe gust days (>=80 km/h). Observed about 1% of days (0.2 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
0.2 days / month
- Share of days
- ~1% of days
- Upper edge
- Up to ~103km/h (P95)
Why this matters
Severe gusts are possible on ~0 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Wind Minor
Gusty days Measures: Gusty days (>=40 km/h). Observed about 56% of days (17.3 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
17.3 days / month
- Share of days
- ~56% of days
- Upper edge
- Up to ~72km/h (P95)
Why this matters
Gusty conditions are possible on ~17 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Rain Minor
Wet days Measures: Wet days (>=0.1mm). Observed about 50% of days (15.5 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
15.5 days / month
- Share of days
- ~50% of days
- Upper edge
- Up to ~14mm (P95)
Why this matters
Measurable rain is possible on ~16 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Humidity Minor
Humid days Measures: Humid days (dew point >=18C). Observed about 49% of days (15.1 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
15.1 days / month
- Share of days
- ~49% of days
- Upper edge
- Up to ~21°C (P95)
Why this matters
Humid conditions are possible on ~15 days. Comfort and pace can drop quickly, so plan shorter outdoor blocks with air-conditioned backup stops.
Rain Minor
Rainy hours Measures: Rain-hours signal (>=3h rain). Observed about 37% of days (11.6 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
11.6 days / month
- Share of days
- ~37% of days
- Upper edge
- Up to ~20h (P95)
Why this matters
Several rainy hours are possible on ~12 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Heat Minor
Warm nights Measures: Warm nights (min >=22C). Observed about 27% of days (8.4 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
8.4 days / month
- Share of days
- ~27% of days
- Upper edge
- Up to ~23°C (P95)
Why this matters
Warm nights are possible on ~8 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Rain Minor
Wet most of day Measures: Wet-most-of-day signal (>=6h rain). Observed about 22% of days (6.8 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
6.8 days / month
- Share of days
- ~22% of days
- Upper edge
- Up to ~22h (P95)
Why this matters
Wet-most-of-day conditions are possible on ~7 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Humidity Minor
High humidity Measures: High humidity days (RH >=80%). Observed about 22% of days (6.8 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
6.8 days / month
- Share of days
- ~22% of days
- Upper edge
- Up to ~88% (P95)
Why this matters
High humidity is possible on ~7 days. Comfort and pace can drop quickly, so plan shorter outdoor blocks with air-conditioned backup stops.
Cloud Minor
Cloudy days Measures: Cloudy days (cloud cover >=60%). Observed about 19% of days (6.0 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
6.0 days / month
- Share of days
- ~19% of days
- Upper edge
- Up to ~99% (P95)
Why this matters
Cloudy skies are possible on ~6 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Wind Minor
Breezy days Measures: Breezy days (mean wind >=25 km/h). Observed about 11% of days (3.3 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
3.3 days / month
- Share of days
- ~11% of days
- Upper edge
- Up to ~33km/h (P95)
Why this matters
Breezy conditions are possible on ~3 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Cloud Minor
Mostly cloudy days Measures: Mostly cloudy days (cloud cover >=80%). Observed about 8% of days (2.5 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
2.5 days / month
- Share of days
- ~8% of days
- Upper edge
- Up to ~99% (P95)
Why this matters
Mostly cloudy skies are possible on ~3 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Humidity Minor
Convective risk Measures: Convective storm risk proxy. Observed about 6% of days (1.7 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
1.7 days / month
- Share of days
- ~6% of days
- Upper edge
- Up to ~21°C (P95)
Why this matters
Convective risk signal appears on ~2 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Cloud Minor
Overcast days Measures: Overcast days (cloud cover >=95%). Observed about 3% of days (0.8 days/month) in January. Historical risk signal only, not a day-by-day forecast.
Likely frequency
0.8 days / month
- Share of days
- ~3% of days
- Upper edge
- Up to ~100% (P95)
Why this matters
Overcast skies are possible on ~1 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Travel planning FAQ
Frequently asked questions
Quick answers to the weather questions you ask the most.
Is January a good time to visit Honolulu?
Typical January days in Honolulu reach highs of 25°C (77°F) with nights around 21°C (70°F). It usually feels warm by day and mild after dark. It is among the wetter months, so it is wise to have some indoor backup plans or flexible activities.
What are temperatures like in January?
In January, you can usually expect highs of 25°C (77°F) and lows near 21°C (70°F). That means warm days and mild nights, so pack layers you can add or remove.
How much does it rain in January?
Rainfall in January averages 45 mm (1.8 in) across roughly 12 days. Overall it is a quite rainy time of year, so a light rain jacket and waterproof shoes are very handy.
How many hours of daylight are there in January?
You can expect about 11 hours of daylight in January. Sunrise is typically around 07:10 and sunset near 18:10. Daylight is fairly typical, with enough time for sightseeing.
How strong is the sun in January?
UV levels are often high (around 7). Regular sunscreen and a hat are recommended.
Is it windy in January?
In January, average wind speeds are around 15 km/h (9 mph), with gusts on the windiest days reaching about 63 km/h (39 mph). On the ground, it is it is a notably windy place, and strong gusts are fairly common.