Hilo, HI weather and climate in 2025
Day
28 °C
Night
20 °C
Sea
26 °C
Precipitation
187 mm
in month
Rainy days
14 days
in month
Daylight
12 hours
average
Sunshine
5 hours
average
Humidity
78 %
Day
28 °C
Night
20 °C
Sea
26 °C
Precipitation
187 mm
in month
Rainy days
14 days
in month
Daylight
12 hours
average
Sunshine
5 hours
average
Humidity
78 %
Overview: Hilo, HI
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Weather overview for Hilo, HI
Weather overview
Hilo, HI (United States of America) is a place with a tropical climate. The day temperatures range from 25 °C (78 °F) in February to 28 °C (83 °F) in August. Temperatures during the night go from 17 °C (62 °F) in February to 20 °C (68 °F) in August. The driest month is February with just 11 days of rain, on the contrary, the month when it rains the most is July with 16 days of rain.
January weather
The tourist season continues in Hilo, HI. The beginning of the descent of the rainfall amount could be noticed, its value is 185 mm (7.29 in), and the number of rainy days descent's start could be observed as well, with its value being 11 days. The night temperature continues to descent, the value of this measure is 17 °C (62 °F). The wind speed is on its minimum, with its value being 6. The number of sun hours (without clouds) rise's start could be observed, the value of this measure is 6 hours.
February weather
The day temperature is on its minimum, with its value being 25 °C (78 °F) in Hilo, HI, and the minimum of the night temperature can be noticed as well, its value is 17 °C (62 °F). The minimum of the number of rainy days is observable, with its value of 11 days, while the beginning of the rise of the rainfall amount could be noticed in this month. The tourist season continues this month.
March weather
The tourist season is close to its peak in Hilo, HI. The rainfall amount is on its maximum, with its value of 322 mm (12.68 in), while the beginning of the rise of the number of rainy days could be noticed, its value is 14 days.
April weather
There is pending tourist season in Hilo, HI. The rainfall amount descent's start could be observed, with its value being 278 mm (10.94 in), while the number of rainy days rises similarly to the previous month, with its value being 15 days. The night temperature rise's start could be observed, its value is 18 °C (64 °F).
May weather
The day temperature starts to rise in Hilo, HI, while the night temperature continues to rise, its value is 18 °C (65 °F). The tourist season continues. The descent of the rainfall amount can be observed, with its value of 172 mm (6.79 in), while the number of rainy days descent's start could be observed, the value of this measure is 15 days. The number of sun hours (without clouds) rise's start could be observed, the value of this measure is 6 hours.
June weather
The day temperature continues to rise, the value of this measure is 27 °C (81 °F) in Hilo, HI, and the rise of the night temperature can be observed as well, with its value being 19 °C (66 °F). The descent of the number of rainy days can be observed, with its value of 14 days, while the rainfall amount is on its minimum in this month. There is pending tourist season. The number of sun hours (without clouds) reaches its maximum in this month.
July weather
There is pending tourist season in Hilo, HI. The maximum of the number of rainy days is observable, its value is 16 days, while the rainfall amount starts to rise in this month. The day temperature continues to rise, with its value being 28 °C (82 °F), and the night temperature continues to rise too, with its value being 20 °C (67 °F). The wind speed is on its maximum, with its value of 6.
August weather
The day temperature is on its maximum, its value is 28 °C (83 °F) in Hilo, HI, and the night temperature is on its maximum too in this month. The number of rainy days descent's start could be observed, with its value being 14 days, and the rainfall amount descent's start could be observed too, with its value being 154 mm (6.05 in). The tourist season is taking place.
September weather
The tourist season continues in Hilo, HI. The number of rainy days continues to descent, while the rainfall amount starts to rise, its value is 181 mm (7.11 in).
October weather
The tourist season continues in Hilo, HI. The rainfall amount rises similarly to the previous month, its value is 187 mm (7.36 in). The beginning of the descent of the day temperature could be noticed, its value is 28 °C (82 °F). The beginning of the descent of the number of sun hours (without clouds) could be noticed, its value is 5 hours.
November weather
The tourist season is close to its peak in November in Hilo, HI. The descent of the day temperature can be observed, the value of this measure is 26 °C (80 °F). The rainfall amount rises similarly to the previous month, with its value being 250 mm (9.86 in), while the beginning of the descent of the number of rainy days could be noticed, with its value of 13 days. The number of sun hours (without clouds) is on its minimum, with its value of 5 hours. The maximum of the humidity can be noticed.
December weather
The tourist season continues in December in Hilo, HI. The descent of the day temperature can be observed, the value of this measure is 26 °C (78 °F), and the night temperature continues to descent as well, with its value of 18 °C (64 °F). The rainfall amount continues to rise, the value of this measure is 264 mm (10.41 in). The day length reaches its minimum in December.
FAQs
Is it hot in Hilo, HI in January?
In January in Hilo, HI, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
What temperature can I expect during the day in Hilo, HI in February?
The average daily temperature in February in Hilo, HI is 25 °C (78 °F). The ideal temperature for enjoying sunbathing by the water and a good temperature for other activities. For some people, it will be too hot in the direct sunlight and the stay may not be so pleasant. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.
How many sunny hours can I expect in April in Hilo, HI?
There is an average length of sunshine of 5 hours per day in April in Hilo, HI.
How humid is Hilo, HI in May?
Humidity in Hilo, HI in May is 76 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.
How windy is Hilo, HI in June?
An average wind scale that can be expected in June in Hilo, HI is 6.
Is July part of the dry season in Hilo, HI?
No, July is not a dry month in Hilo, HI, expect rain approximately 16 days in a month.
What is the air temperature in August in Hilo, HI at night?
The average night temperature in Hilo, HI in August is 20 °C (68 °F). This temperature is pleasant for a wide range of evening, night, and morning activities from sports to sitting outside in restaurants or evening walks.
How many days of precipitation on average can I expect in Hilo, HI in September?
There are 14 days, which are rainy in September in Hilo, HI, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 3.2 days of the week, or in general - 45 % days.
Are there good conditions to visit in October in Hilo, HI?
There are good conditions for visiting in Hilo, HI in October. The temperature during the day will be nice 28 °C (82 °F). The temperature of the sea will be perfect at 26 °C (79 °F). At night, temperatures hover around a pleasant 20 °C (67 °F).
Is there a wet season in November in Hilo, HI?
No, there is no wet season in November in Hilo, HI - you can expect 13 days of rain during the month.
What is the sea temperature in Hilo, HI in December?
The temperature of the sea in December in Hilo, HI is 25 °C (77 °F). It will be comfortable for you to spend even a long time in a sea warm like this, there will be people for whom this temperature will be too low or too high.
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