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When is the best time to visit Hilo?
In general the best time to visit Hilo is probably October, when the weather is usually great. The hottest months are August, September, October, while the coldest months are January, February, March.
Depending on the activities you want to experience, you may choose different months to visit:
- The best time for a sunbathing holiday is August, September, October. Average maximum temperatures are up to +28°C in October and it has 1 sunny days on average.
- In general, it’s pleasant to walk and do outdoor activities during January - December.
- If you want to avoid wet weather, then your choice is October, November, December with the lowest chance of rain.
Average weather in Hilo in different months
This is the average weather in Hilo for each month based on historic data:
In January, February, March, April, May, June, July, August, September, October, November, December the weather is average. Expect around 335 rainy days, and the precipitation amounts to approximately 400 mm in March.
Climate in Hilo
Here is the detailed breakdown of the climate in Hilo for each month:
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum Temperature | |||||||||||
| +32°C | +31°C | +31°C | +31°C | +34°C | +32°C | +34°C | +32°C | +34°C | +33°C | +33°C | +31°C |
| Average Maximum Temperature | |||||||||||
| +26°C | +26°C | +26°C | +26°C | +27°C | +28°C | +28°C | +28°C | +28°C | +28°C | +27°C | +26°C |
| Minimum Temperature | |||||||||||
| +8°C | +14°C | +16°C | +16°C | +17°C | +17°C | +18°C | +19°C | +19°C | +18°C | +15°C | +14°C |
| Avg. water temperature | |||||||||||
| - | - | - | - | - | - | - | - | - | - | - | - |
| Humidity, % | |||||||||||
| 77 | 77 | 78 | 79 | 78 | 78 | 79 | 79 | 79 | 80 | 81 | 79 |
| Rain, mm | |||||||||||
| 264 | 285 | 400 | 349 | 258 | 228 | 295 | 283 | 240 | 264 | 373 | 321 |
| Snow, mm | |||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Average wind speed, m/s | |||||||||||
| 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Sunny Days | |||||||||||
| 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 |
| Cloud Days | |||||||||||
| 5 | 3 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 2 | 1 | 3 |
| Rainy Days | |||||||||||
| 24 | 24 | 28 | 29 | 29 | 29 | 30 | 30 | 28 | 29 | 28 | 27 |
| Snowy Days | |||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Average Temperature
Here are the average maximum and minimum temperatures in Hilo during the whole year:
The hottest month in Hilo is October with average maximum temperature going up to +28°C. The coldest month is January with the lowest temperatures of +19°C.
Humidity
The temperature feels different depending on humidity. Here is how humidity in Hilo looks throughout the year, in %:
The most humid month in Hilo is November with average humidity going up to 81%. The least humid month is January with an average humidity of 77%.
Rain
Amount of rainfall in mm. in Hilo during the whole year based on historical data:
The sunniest and driest month is June with approximately 0 sunny days and a total precipitation of around 228 mm. The rainiest and wettest month is March with approximately 28 rainy days and 400 mm of total precipitation.
FAQ
Frequently asked questions about the weather in Hilo:
What is the hottest month in Hilo?
The hottest month in Hilo is October with average maximum temperature of +28°C.
What is the coldest month in Hilo?
The coldest month in Hilo is January with minimum temperatures of +19°C.
Is Hilo worth visiting in winter?
Winter in Hilo could be a good time to visit, as the weather is generally ok.
When does it rain the least in Hilo?
if you're looking to visit Hilo when it rains the least, you should plan your trip for March, November, April. During this time, rainfall is rare with the driest month being June with only 228 mm of rain.
Other cities in USA
Check out the weather for other cities in USA.
Monthly weather in Hilo
Source of the data
For this page, we’ve looked at the typical weather in Hilo, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
