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August weather forecast in Hilo

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

27 July, sun

	650 mmHg		82%
	4.6 m/s		+24

27 July, Sunday. day, 22°; night, 15°; partly cloudy

28 July, mon

	650 mmHg		81%
	4.6 m/s		+24

28 July, Monday. day, 22°; night, 15°; partly cloudy

29 July, tue

	650 mmHg		81%
	4.69 m/s		+24

29 July, Tuesday. day, 22°; night, 15°; partly cloudy

30 July, wed

	650 mmHg		81%
	4.8 m/s		+24

30 July, Wednesday. day, 22°; night, 15°; rain

31 July, thu

	650 mmHg		81%
	4.8 m/s		+23

31 July, Thursday. day, 22°; night, 15°; rain

1 August, fri

	650 mmHg		81%
	4.69 m/s		+24

1 August, Friday. day, 22°; night, 15°; clear

2 August, sat

	650 mmHg		84%
	4.6 m/s		+24

2 August, Saturday. day, 22°; night, 15°; rain

3 August, sun

	650 mmHg		83%
	4.69 m/s		+24

3 August, Sunday. day, 22°; night, 15°; rain

4 August, mon

	650 mmHg		82%
	4.69 m/s		+24

4 August, Monday. day, 22°; night, 15°; rain

5 August, tue

	650 mmHg		82%
	4.6 m/s		+24

5 August, Tuesday. day, 22°; night, 15°; rain

6 August, wed

	650 mmHg		81%
	4.69 m/s		+23

6 August, Wednesday. day, 22°; night, 15°; partly cloudy

7 August, thu

	650 mmHg		84%
	4.8 m/s		+24

7 August, Thursday. day, 22°; night, 15°; rain

8 August, fri

	650 mmHg		82%
	4.9 m/s		+24

8 August, Friday. day, 22°; night, 15°; partly cloudy

9 August, sat

	651 mmHg		82%
	4.69 m/s		+24

9 August, Saturday. day, 22°; night, 15°; partly cloudy

10 August, sun

	651 mmHg		83%
	4.6 m/s		+25

10 August, Sunday. day, 22°; night, 15°; clear

11 August, mon

	650 mmHg		83%
	4.6 m/s		+24

11 August, Monday. day, 22°; night, 15°; rain

12 August, tue

	650 mmHg		83%
	4.6 m/s		+24

12 August, Tuesday. day, 22°; night, 15°; partly cloudy

13 August, wed

	650 mmHg		84%
	4.6 m/s		+24

13 August, Wednesday. day, 21°; night, 15°; rain

14 August, thu

	650 mmHg		84%
	4.6 m/s		+24

14 August, Thursday. day, 22°; night, 15°; rain

15 August, fri

	650 mmHg		82%
	4.6 m/s		+24

15 August, Friday. day, 22°; night, 15°; partly cloudy

16 August, sat

	650 mmHg		84%
	4.5 m/s		+24

16 August, Saturday. day, 22°; night, 15°; rain

17 August, sun

	650 mmHg		83%
	4.5 m/s		+24

17 August, Sunday. day, 22°; night, 15°; partly cloudy

18 August, mon

	650 mmHg		82%
	4.6 m/s		+24

18 August, Monday. day, 22°; night, 15°; clear

19 August, tue

	650 mmHg		82%
	4.69 m/s		+24

19 August, Tuesday. day, 22°; night, 15°; rain

20 August, wed

	650 mmHg		81%
	4.5 m/s		+24

20 August, Wednesday. day, 22°; night, 15°; rain

21 August, thu

	650 mmHg		82%
	4.6 m/s		+24

21 August, Thursday. day, 22°; night, 15°; clear

22 August, fri

	650 mmHg		83%
	4.6 m/s		+24

22 August, Friday. day, 22°; night, 15°; rain

23 August, sat

	650 mmHg		83%
	4.69 m/s		+24

23 August, Saturday. day, 22°; night, 15°; partly cloudy

24 August, sun

	650 mmHg		84%
	4.8 m/s		+24

24 August, Sunday. day, 22°; night, 15°; partly cloudy

25 August, mon

	650 mmHg		82%
	4.8 m/s		+24

25 August, Monday. day, 22°; night, 15°; rain

26 August, tue

	650 mmHg		81%
	4.6 m/s		+24

26 August, Tuesday. day, 22°; night, 15°; clear

27 August, wed

	650 mmHg		83%
	4.6 m/s		+24

27 August, Wednesday. day, 22°; night, 15°; clear

28 August, thu

	649 mmHg		82%
	4.6 m/s		+23

28 August, Thursday. day, 22°; night, 15°; rain

29 August, fri

	649 mmHg		83%
	4.6 m/s		+24

29 August, Friday. day, 22°; night, 15°; rain

30 August, sat

	650 mmHg		84%
	4.6 m/s		+24

30 August, Saturday. day, 22°; night, 15°; rain

31 August, sun

	650 mmHg		82%
	4.69 m/s		+24

31 August, Sunday. day, 22°; night, 15°; rain

1 September, mon

	650 mmHg		84%
	4.69 m/s		+24

1 September, Monday. day, 22°; night, 15°; rain

2 September, tue

	650 mmHg		82%
	4.5 m/s		+24

2 September, Tuesday. day, 22°; night, 15°; clear

3 September, wed

	650 mmHg		82%
	4.5 m/s		+24

3 September, Wednesday. day, 22°; night, 15°; clear

4 September, thu

	650 mmHg		83%
	4.6 m/s		+24

4 September, Thursday. day, 22°; night, 14°; rain

5 September, fri

	650 mmHg		83%
	4.5 m/s		+24

5 September, Friday. day, 22°; night, 15°; rain

6 September, sat

	650 mmHg		85%
	4.5 m/s		+24

6 September, Saturday. day, 22°; night, 15°; rain

Average data for 10 years

Hilo August

6

sunny days

17

days with precipitation

6

cloudy days

6 sunny days; 17 days with precipitation; 6 cloudy days;

83

%

air humidity

2.2

m/s

WindSE

133

mm of precipitation

(6% of annual average)

+24

°C

Water temperature

air humidity 83%; 133 millimeters of precipitation (6% of annual average); Wind south-easterly 2.2 Meters per second; Water temperature +24°

Weather graphs for August

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

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SE

1

Average data for 10 years

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3

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31

Daytime temperature

Night-time temperature

Cities near you

Honolulu
Koloa
Mataiva
Kailua-Kona
Waikoloa
Nuku Hiva
Hana
Wailea
Kihei

Cities with similar weather in August

Podgorica
Victoria
Marseilles
Casablanca
Cannes
Agios Nikolaos
Bali
Tarragona
Caracas

The weather forecast for August 2025 is based on historical data from the past 10 years.

August in Hilo is the warmest month of the year. In August, the weather in Hilo is typically warm. Average daily high temperature in August is about 22 degrees above zero. On average, Hilo has 17 rainy, 8 partly cloudy, and 6 sunny days in August. The rains are usually heavy.

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