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September weather forecast in Waikoloa

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

31 August, sun

	761 mmHg		77%
	5.2 m/s		+27

31 August, Sunday. day, 26°; night, 22°; rain

1 September, mon

	761 mmHg		77%
	5.1 m/s		+27

1 September, Monday. day, 26°; night, 22°; rain

2 September, tue

	761 mmHg		77%
	5.1 m/s		+27

2 September, Tuesday. day, 26°; night, 22°; rain

3 September, wed

	761 mmHg		76%
	4.9 m/s		+27

3 September, Wednesday. day, 26°; night, 22°; rain

4 September, thu

	761 mmHg		76%
	4.5 m/s		+27

4 September, Thursday. day, 26°; night, 22°; rain

5 September, fri

	761 mmHg		76%
	4.5 m/s		+27

5 September, Friday. day, 26°; night, 22°; rain

6 September, sat

	761 mmHg		77%
	4.3 m/s		+27

6 September, Saturday. day, 26°; night, 22°; rain

7 September, sun

	761 mmHg		77%
	4.69 m/s		+28

7 September, Sunday. day, 26°; night, 22°; rain

8 September, mon

	761 mmHg		77%
	4.6 m/s		+27

8 September, Monday. day, 26°; night, 22°; rain

9 September, tue

	761 mmHg		77%
	4.4 m/s		+27

9 September, Tuesday. day, 26°; night, 22°; rain

10 September, wed

	761 mmHg		77%
	4.4 m/s		+28

10 September, Wednesday. day, 26°; night, 22°; rain

11 September, thu

	761 mmHg		77%
	4.19 m/s		+28

11 September, Thursday. day, 26°; night, 22°; rain

12 September, fri

	761 mmHg		77%
	4.5 m/s		+28

12 September, Friday. day, 26°; night, 22°; rain

13 September, sat

	761 mmHg		78%
	4.3 m/s		+28

13 September, Saturday. day, 26°; night, 22°; rain

14 September, sun

	761 mmHg		78%
	4.4 m/s		+28

14 September, Sunday. day, 26°; night, 22°; rain

15 September, mon

	761 mmHg		78%
	3.9 m/s		+27

15 September, Monday. day, 26°; night, 22°; rain

16 September, tue

	761 mmHg		78%
	4.6 m/s		+27

16 September, Tuesday. day, 26°; night, 22°; rain

17 September, wed

	761 mmHg		77%
	5 m/s		+27

17 September, Wednesday. day, 26°; night, 22°; rain

18 September, thu

	761 mmHg		76%
	4.69 m/s		+27

18 September, Thursday. day, 26°; night, 22°; rain

19 September, fri

	761 mmHg		76%
	4.5 m/s		+27

19 September, Friday. day, 26°; night, 22°; rain

20 September, sat

	761 mmHg		77%
	4.5 m/s		+27

20 September, Saturday. day, 26°; night, 22°; rain

21 September, sun

	761 mmHg		76%
	4.4 m/s		+27

21 September, Sunday. day, 26°; night, 22°; rain

22 September, mon

	761 mmHg		77%
	4.4 m/s		+27

22 September, Monday. day, 26°; night, 22°; rain

23 September, tue

	761 mmHg		77%
	4.4 m/s		+27

23 September, Tuesday. day, 26°; night, 22°; rain

24 September, wed

	761 mmHg		77%
	4.6 m/s		+27

24 September, Wednesday. day, 26°; night, 22°; rain

25 September, thu

	761 mmHg		77%
	4.3 m/s		+27

25 September, Thursday. day, 26°; night, 22°; rain

26 September, fri

	761 mmHg		78%
	4.4 m/s		+27

26 September, Friday. day, 26°; night, 22°; rain

27 September, sat

	761 mmHg		77%
	4.69 m/s		+27

27 September, Saturday. day, 26°; night, 22°; rain

28 September, sun

	761 mmHg		77%
	4.6 m/s		+27

28 September, Sunday. day, 26°; night, 22°; rain

29 September, mon

	761 mmHg		77%
	4.69 m/s		+28

29 September, Monday. day, 26°; night, 22°; rain

30 September, tue

	761 mmHg		77%
	4.69 m/s		+27

30 September, Tuesday. day, 26°; night, 22°; clear

1 October, wed

	761 mmHg		77%
	4.69 m/s		+27

1 October, Wednesday. day, 26°; night, 22°; rain

2 October, thu

	761 mmHg		77%
	4.4 m/s		+27

2 October, Thursday. day, 26°; night, 22°; rain

3 October, fri

	761 mmHg		77%
	4.5 m/s		+28

3 October, Friday. day, 26°; night, 22°; rain

4 October, sat

	761 mmHg		77%
	4.6 m/s		+27

4 October, Saturday. day, 26°; night, 22°; rain

Average data for 10 years

Waikoloa September

1

sunny day

29

days with precipitation

2

cloudy days

1 sunny day; 29 days with precipitation; 2 cloudy days;

77

%

air humidity

3.3

m/s

WindE

228

mm of precipitation

(11% of annual average)

+27

°C

Water temperature

air humidity 77%; 228 millimeters of precipitation (11% of annual average); Wind easterly 3.3 Meters per second; Water temperature +27°

Weather graphs for September

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

NE

NE

NE

NE

NE

E

E

NE

NE

NE

NE

E

E

E

E

E

NE

NE

NE

E

NE

NE

E

E

E

E

E

E

NE

E

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

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

Cities with similar weather in September

Los Angeles
Malaga
Rio de Janeiro
Casablanca
Rabat
Bali
Bali
Caracas
Loanda

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

In September, the weather in Waikoloa is typically warm. Average daily high temperature in September is about 26 degrees above zero. On average, Waikoloa has 29 rainy and 1 sunny day in September. The rains are usually heavy. September as well as March, April, May, and June is considered the most uncomfortable time to visit Waikoloa.

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