Guam Weather in 2021

Historical record of Guam weather for the year 2021 based on NOAA data.

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2021 Guam Weather Extremes
Highest temperature	92 °F	June 17
Lowest temperature	69 °F	January 30
Highest daily low	81 °F	July 28
Lowest daily high	80 °F	March 9
Most daily precipitation	4.0 inches	September 23
Most daily snow	none	-
Total annual precipitation	99.9 inches	-
Total annual snow	none	-

What was the hottest temperature in Guam in 2021?

The highest temperature recorded in Guam in 2021 was 92 °F which happened 3 different times.

Highest Temperatures: All-Time By Year

Highest Temperatures in Guam in 2021

Rank	Temperature	Date
1	92 °F	Jun 17
1	92 °F	Jun 16
1	92 °F	Jun 15
4	91 °F	Jul 7
4	91 °F	Jul 6
4	91 °F	Jun 28
4	91 °F	Jun 14
4	91 °F	Jun 13
4	91 °F	Jun 12
4	91 °F	Apr 21

What was the coldest temperature in Guam in 2021?

The lowest temperature recorded in Guam in 2021 was 69 °F which happened on Jan 30.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Guam in 2021

Rank	Temperature	Date
1	69 °F	January 30
2	70 °F	January 21
3	71 °F	April 23
3	71 °F	January 28
5	72 °F	December 24
5	72 °F	January 31
5	72 °F	January 29
8	73 °F	December 31
8	73 °F	December 7
8	73 °F	April 24
8	73 °F	April 22
8	73 °F	March 12
8	73 °F	March 9
8	73 °F	January 26
8	73 °F	January 25

January 2021 Guam Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	86	76	0.06
January 2	87	78	0.00
January 3	87	79	0.00
January 4	87	76	0.32
January 5	87	77	0.34
January 6	85	78	0.01
January 7	85	77	0.09
January 8	87	77	0.09
January 9	85	77	0.33
January 10	86	75	0.00
January 11	85	76	0.00
January 12	86	77	0.00
January 13	86	76	0.15
January 14	85	76	0.21
January 15	86	76	0.01
January 16	86	76	0.11
January 17	86	78	0.00
January 18	86	78	0.00
January 19	87	79	0.00
January 20	89	78	0.00
January 21	81	70	1.89
January 22	85	76	0.02
January 23	86	77	0.21
January 24	85	75	0.00
January 25	86	73	0.00
January 26	88	73	0.01
January 27	85	74	0.04
January 28	86	71	0.00
January 29	87	72	0.00
January 30	86	69	0.15
January 31	85	72	0.07

February 2021 Guam Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	86	75	0.01
February 2	86	76	0.01
February 3	85	75	0.32
February 4	86	77	0.00
February 5	87	75	0.06
February 6	87	78	0.29
February 7	85	77	0.01
February 8	85	76	0.00
February 9	87	77	0.04
February 10	87	77	0.00
February 11	85	76	0.00
February 12	86	77	0.00
February 13	87	76	0.02
February 14	86	76	0.00
February 15	86	78	0.00
February 16	86	77	0.00
February 17	86	77	0.00
February 18	86	78	0.03
February 19	87	77	0.03
February 20	87	77	0.01
February 21	88	76	0.00
February 22	87	74	0.15
February 23	87	75	0.00
February 24	87	78	0.00
February 25	87	78	0.03
February 26	86	77	0.00
February 27	87	75	0.00
February 28	88	76	0.00

March 2021 Guam Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	88	77	0.00
March 2	88	76	0.01
March 3	90	77	0.00
March 4	90	76	0.00
March 5	88	77	0.01
March 6	88	78	0.10
March 7	89	78	0.01
March 8	88	77	0.11
March 9	80	73	0.69
March 10	83	75	0.20
March 11	84	74	0.00
March 12	81	73	0.51
March 13	85	75	0.20
March 14	86	76	0.15
March 15	86	76	0.04
March 16	87	76	0.09
March 17	87	77	0.04
March 18	86	78	0.04
March 19	87	77	0.00
March 20	86	76	0.15
March 21	86	77	0.00
March 22	86	78	0.04
March 23	87	76	0.12
March 24	87	76	0.11
March 25	87	77	0.04
March 26	88	77	0.00
March 27	88	77	0.00
March 28	87	76	0.00
March 29	88	77	0.00
March 30	89	75	0.03
March 31	87	77	0.01

April 2021 Guam Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	88	77	0.07
April 2	84	76	0.81
April 3	85	75	0.00
April 4	87	75	0.00
April 5	87	78	0.15
April 6	89	77	0.01
April 7	88	75	0.02
April 8	89	76	0.00
April 9	88	79	0.00
April 10	90	80	0.04
April 11	88	81	0.00
April 12	90	79	0.03
April 13	88	78	0.11
April 14	87	80	0.05
April 15	88	79	0.00
April 16	89	79	0.00
April 17	89	79	0.02
April 18	90	77	0.00
April 19	89	76	0.11
April 20	89	75	0.01
April 21	91	75	0.00
April 22	90	73	0.00
April 23	89	71	0.00
April 24	90	73	0.00
April 25	90	78	0.03
April 26	85	77	0.82
April 27	87	75	0.56
April 28	89	79	0.07
April 29	88	78	0.10
April 30	89	78	0.01

May 2021 Guam Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	89	79	0.04
May 2	89	79	0.22
May 3	89	76	0.74
May 4	89	78	0.13
May 5	89	78	0.02
May 6	88	78	0.30
May 7	86	77	0.67
May 8	87	78	0.40
May 9	87	79	0.02
May 10	88	78	0.04
May 11	88	79	0.00
May 12	89	79	0.00
May 13	87	79	0.26
May 14	88	77	0.03
May 15	84	75	2.11
May 16	87	75	0.09
May 17	86	79	0.03
May 18	87	78	0.10
May 19	87	77	0.13
May 20	89	76	0.04
May 21	87	78	0.09
May 22	86	76	0.28
May 23	88	78	0.05
May 24	87	78	0.15
May 25	88	80	0.00
May 26	89	80	0.02
May 27	86	77	0.22
May 28	86	77	0.27
May 29	88	80	0.03
May 30	88	77	0.40
May 31	83	78	0.26

June 2021 Guam Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	87	79	0.15
June 2	87	80	0.00
June 3	87	76	0.01
June 4	88	77	0.17
June 5	87	77	0.10
June 6	87	79	0.03
June 7	86	77	0.10
June 8	88	78	0.00
June 9	89	75	0.00
June 10	90	74	0.00
June 11	90	76	0.00
June 12	91	81	0.00
June 13	91	80	0.00
June 14	91	79	0.00
June 15	92	81	0.00
June 16	92	81	0.00
June 17	92	80	0.00
June 18	88	78	0.35
June 19	90	79	0.18
June 20	90	77	0.05
June 21	88	78	0.20
June 22	83	76	2.83
June 23	88	79	0.05
June 24	89	78	0.21
June 25	90	79	0.02
June 26	89	78	0.00
June 27	90	80	0.06
June 28	91	80	0.08
June 29	89	80	0.21
June 30	89	79	0.28

July 2021 Guam Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	90	77	0.38
July 2	88	79	0.01
July 3	89	80	0.08
July 4	90	80	0.23
July 5	89	81	0.05
July 6	91	80	0.00
July 7	91	78	0.01
July 8	90	80	0.36
July 9	89	80	0.11
July 10	90	78	0.28
July 11	89	79	0.34
July 12	89	78	0.35
July 13	88	77	0.21
July 14	88	77	0.25
July 15	87	77	0.84
July 16	89	81	0.01
July 17	89	81	0.00
July 18	88	79	0.05
July 19	89	80	0.06
July 20	85	77	1.12
July 21	85	75	0.61
July 22	89	76	0.45
July 23	87	74	0.22
July 24	85	76	0.21
July 25	86	75	1.01
July 26	89	78	0.05
July 27	89	79	0.00
July 28	89	81	0.03
July 29	88	79	0.01
July 30	88	78	0.75
July 31	90	77	0.68

August 2021 Guam Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	88	78	0.93
August 2	83	77	1.93
August 3	87	75	1.74
August 4	90	77	0.04
August 5	90	78	0.00
August 6	88	77	0.67
August 7	88	75	1.15
August 8	86	79	0.03
August 9	88	78	0.02
August 10	88	76	0.23
August 11	90	77	0.30
August 12	84	75	0.38
August 13	88	79	0.01
August 14	90	77	0.24
August 15	88	77	0.05
August 16	88	79	0.09
August 17	82	75	0.55
August 18	84	75	1.64
August 19	88	77	0.01
August 20	88	78	0.00
August 21	87	77	0.07
August 22	86	75	1.53
August 23	87	75	0.17
August 24	86	76	0.15
August 25	86	75	0.31
August 26	85	75	1.26
August 27	87	76	0.54
August 28	88	76	0.23
August 29	87	77	0.38
August 30	87	77	0.28
August 31	84	77	0.51

September 2021 Guam Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	87	78	0.12
September 2	88	78	0.39
September 3	87	79	0.20
September 4	86	77	0.68
September 5	87	77	0.14
September 6	88	78	0.06
September 7	88	78	0.08
September 8	84	78	0.36
September 9	88	80	0.00
September 10	90	79	0.03
September 11	89	78	0.50
September 12	88	80	0.06
September 13	90	80	0.03
September 14	89	79	0.33
September 15	86	76	0.57
September 16	87	76	0.07
September 17	88	76	0.10
September 18	88	79	0.00
September 19	88	77	0.00
September 20	90	78	0.00
September 21	90	78	0.00
September 22	90	76	1.30
September 23	82	76	3.97
September 24	81	76	1.41
September 25	84	76	0.71
September 26	86	76	0.00
September 27	88	76	0.00
September 28	88	77	0.00
September 29	88	77	0.00
September 30	90	78	0.50

October 2021 Guam Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	89	76	0.82
October 2	86	78	0.39
October 3	88	76	0.82
October 4	89	77	0.85
October 5	83	75	3.07
October 6	86	75	3.18
October 7	84	75	0.85
October 8	86	75	1.44
October 9	87	76	0.88
October 10	84	75	2.37
October 11	88	77	0.34
October 12	89	77	0.46
October 13	87	76	0.00
October 14	88	79	0.11
October 15	89	79	0.09
October 16	88	76	0.11
October 17	88	77	0.34
October 18	90	76	0.20
October 19	87	75	0.32
October 20	89	74	1.95
October 21	85	76	2.03
October 22	83	77	1.53
October 23	85	75	1.83
October 24	81	75	1.08
October 25	86	76	0.00
October 26	87	75	0.00
October 27	87	77	0.00
October 28	87	79	0.00
October 29	89	77	0.00
October 30	88	77	0.33
October 31	82	75	1.29

November 2021 Guam Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	87	77	0.02
November 2	87	75	0.55
November 3	86	74	0.00
November 4	88	78	0.10
November 5	88	78	0.02
November 6	88	78	0.05
November 7	88	78	0.04
November 8	87	77	0.83
November 9	88	78	0.17
November 10	88	78	0.04
November 11	88	80	0.00
November 12	88	79	0.11
November 13	88	80	0.07
November 14	87	78	0.58
November 15	89	77	0.32
November 16	84	76	0.39
November 17	86	77	0.65
November 18	87	78	0.03
November 19	86	79	0.00
November 20	87	80	0.00
November 21	87	77	0.00
November 22	86	77	0.16
November 23	87	76	1.20
November 24	88	76	0.41
November 25	88	77	0.45
November 26	87	76	0.40
November 27	86	76	0.00
November 28	85	75	0.68
November 29	82	74	1.20
November 30	85	76	1.40

December 2021 Guam Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	85	75	2.66
December 2	86	75	0.10
December 3	86	75	0.00
December 4	87	75	0.00
December 5	87	76	0.37
December 6	86	76	0.00
December 7	84	73	0.34
December 8	87	79	0.00
December 9	87	78	0.14
December 10	87	79	0.00
December 11	87	78	0.00
December 12	86	76	0.05
December 13	86	75	0.09
December 14	84	78	0.02
December 15	86	78	0.01
December 16	85	75	0.11
December 17	85	75	0.11
December 18	87	75	0.09
December 19	87	76	0.06
December 20	85	76	0.01
December 21	87	74	0.07
December 22	86	75	0.01
December 23	87	74	0.00
December 24	85	72	0.21
December 25	86	79	0.00
December 26	87	78	0.00
December 27	86	76	0.01
December 28	86	77	0.00
December 29	87	78	0.00
December 30	86	75	0.01
December 31	87	73	0.00

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Weather Station Details

Years	Station	Coordinates
1945–2024	Guam International Airport	location