HonoluluPhoto: Robert Linsdell from St. Andrews, Canada · CC BY 2.0USA · North America
Best time to visit Honolulu
Honolulu on Oahu is warm all year with a pleasant trade wind. Summer is driest, winter a little rainier, but there is no truly cold season. The sea is always warm.
Climate decision
Best travel months for Honolulu
Joint highest scores
Next highest scores
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Latest 5-year values 2021–2025
Average of the five most recent complete years compared with the 1991–2025 climate average.
March · Wet days
15.6 days/month
1991–2025: 12 days/month
+3.6 days/month · higher
December · Monthly precipitation
108.1 mm/month
1991–2025: 76.4 mm/month
+31.7 mm/month · higher
January · Mean daily maximum
25.3 °C
1991–2025: 24.4 °C
+0.9 °C · higher
October · Sea temperature
27 °C
1991–2025: 26.8 °C
+0.3 °C · similar
August: 0/155 days at or above 30 °C; highest single value 29.9 °C.
Five-year historical sample, not a weather forecast or long-term climate trend. Individual hot days can be far above the monthly mean.
Annual profile · Balanced signals
Honolulu: no single climate figure decides
Choose a suitable temperature range first, then compare rain, sunshine and the intended trip style within that window.
Average daily highs vary by 3.8 °C and rainy days by 5.8. Temperature, dryness and sunshine should therefore be considered together.
The useful trade-off
Highest average daily high
August and September · 28 °C
Fewest rainy days
August · 7.1
Most sunshine
June · 8.9 h
Warmest sea
September · 26.8 °C
Month by month
Overall suitability per month. Tap a month for details.
All climate figures compared
The table is the complete accessible data view; the charts below highlight selected patterns.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Rain mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| January | 24 | 22 | 10 | 63 | 5.5 | 75 | 4.7 | 24 | 83 |
| February | 24 | 21 | 11 | 63 | 6.3 | 74 | 5.1 | 24 | 83 |
| March | 25 | 22 | 12 | 77 | 7.2 | 74 | 5.4 | 24 | 81 |
| April | 25 | 22 | 10 | 42 | 8.1 | 74 | 5.7 | 24 | 85 |
| May | 26 | 23 | 9 | 39 | 8.6 | 74 | 5.3 | 25 | 87 |
| June | 27 | 24 | 8 | 28 | 8.9 | 74 | 6.1 | 26 | 87 |
| July | 27 | 24 | 8 | 32 | 8.8 | 74 | 6.4 | 26 | 85 |
| August | 28 | 25 | 7 | 33 | 8.6 | 74 | 6.1 | 27 | 85 |
| September | 28 | 25 | 9 | 39 | 7.9 | 73 | 5.5 | 27 | 82 |
| October | 27 | 25 | 12 | 55 | 6.7 | 74 | 5.1 | 27 | 77 |
| November | 26 | 24 | 13 | 63 | 5.6 | 75 | 5.5 | 26 | 77 |
| December | 25 | 23 | 13 | 76 | 5.1 | 76 | 5.3 | 25 | 78 |
Climate through the year
Compare temperature, rainy days, sunshine and, for coastal destinations, sea temperature month by month.
Find a place to stay
Where to stay in Honolulu
Compare available stays, prices and cancellation terms for Honolulu on Booking.com.
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Useful next decisions
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Similar destinations
The number is the overall climate score, not a similarity score.
Country and region
Frequently asked questions
When is the best time to visit Honolulu?
The strongest climate months are April, May, June, July. Values are historical averages, not a forecast.
Which month has the highest average daily maximum temperature in Honolulu?
Average daily maximum temperatures in Honolulu are practically tied in August and September at around 28 °C.
When is the sea warmest at Honolulu?
In September, at around 27 °C.