Sea weather in Guam (Marianas) in Micronesia All the beach weather in Guam (Marianas)

All the essential weather information for enjoying the beach in Guam (Marianas) in Micronesia, for swimming, tanning or water sports! Our sea weather data is reliable, easy to read and updated every day.

Weather: When should you go to the beach in Guam (Marianas) over the next 7 days?

Discover the best moment to go to the beach in Guam (Marianas) in Micronesia this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Guam (Marianas). You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Thursday 29 January 202676°F to 83°Frecommended
Friday 30 January 202681°F to 83°Fdiscouraged
Saturday 31 January 202681°F to 81°Fdiscouraged
Sunday 1 February 202681°F to 81°Fdiscouraged
Monday 2 February 202681°F to 81°Fdiscouraged
Tuesday 3 February 202679°F to 81°Fdiscouraged
Wednesday 4 February 202677°F to 81°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Guam (Marianas)

Sea weather on Thursday 29 January 2026

On Thursday 29 January 2026, the sun will rise at 06:49 and will set at 18:20 on the beach(es) of Guam (Marianas). The outside temperature will be a high of 83°F t and a low of 76°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 9.3mph km/h (with gusts up to 13.1mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (81°F)27°C (81°F)27°C (81°F)28°C (82°F)24°C (75°F)28°C (82°F)28°C (82°F)27°C (81°F)
Perceived temperature30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)26°C (78°F)30°C (87°F)31°C (87°F)30°C (87°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity76%74%70%71%70%71%74%76%
Barometric pressure1013 hPa1012 hPa1012 hPa1014 hPa1013 hPa1011 hPa1012 hPa1014 hPa
Cloud cover72%77%0%0%74%86%66%73%
Heat index30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)26°C (78°F)30°C (87°F)31°C (87°F)30°C (87°F)
Dew point23°C (73°F)22°C (72°F)21°C (71°F)22°C (71°F)18°C (65°F)22°C (71°F)22°C (72°F)23°C (73°F)
Wind
Speed11km/h (7mph)10km/h (6mph)7km/h (4mph)9km/h (5mph)3km/h (2mph)4km/h (3mph)11km/h (7mph)15km/h (9mph)
Gusts16km/h (10mph)15km/h (9mph)10km/h (6mph)12km/h (7mph)6km/h (4mph)6km/h (4mph)15km/h (9mph)21km/h (13mph)
Direction 105°
ESE
156°
SSE
166°
SSE
110°
ESE
64°
ENE
326°
NNW
340°
NNW

N
Wind chill27°C (81°F)27°C (81°F)27°C (81°F)28°C (82°F)24°C (75°F)28°C (82°F)28°C (82°F)27°C (81°F)
Waves
Height1.1m (3.5ft)1.0m (3.4ft)1.0m (3.3ft)1.0m (3.2ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (2.9ft)0.8m (2.8ft)
Direction 348°
NNW
349°
N
351°
N
359°
N
359°
N
359°
N
359°
N
360°
N
Period9.5 sec.9.2 sec.11.3 sec.11.1 sec.10.8 sec.10.6 sec.10.3 sec.10.1 sec.
Significant height1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)
Sea water temperature
Water temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)

Sea weather on Friday 30 January 2026

On Friday 30 January 2026, the sun will rise at 06:48 and will set at 18:21 on the beach(es) of Guam (Marianas). The outside temperature will be a high of 83°F t and a low of 81°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 16.2mph km/h (with gusts up to 24.2mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (81°F)27°C (80°F)27°C (80°F)27°C (81°F)27°C (81°F)28°C (82°F)28°C (82°F)27°C (81°F)
Perceived temperature30°C (87°F)30°C (86°F)30°C (86°F)31°C (87°F)30°C (87°F)31°C (87°F)31°C (88°F)31°C (87°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%81%80%78%77%76%79%80%
Barometric pressure1013 hPa1012 hPa1012 hPa1014 hPa1012 hPa1011 hPa1012 hPa1013 hPa
Cloud cover75%73%50%87%70%87%30%87%
Heat index30°C (87°F)30°C (86°F)30°C (86°F)31°C (87°F)30°C (87°F)31°C (87°F)31°C (88°F)31°C (87°F)
Dew point23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (73°F)23°C (73°F)23°C (74°F)23°C (74°F)
Wind
Speed19km/h (12mph)22km/h (14mph)24km/h (15mph)26km/h (16mph)26km/h (16mph)24km/h (15mph)23km/h (14mph)23km/h (14mph)
Gusts27km/h (17mph)32km/h (20mph)34km/h (21mph)35km/h (22mph)39km/h (24mph)35km/h (22mph)32km/h (20mph)33km/h (21mph)
Direction 14°
NNE
18°
NNE
30°
NNE
48°
NE
54°
NE
58°
ENE
63°
ENE
58°
ENE
Wind chill27°C (81°F)27°C (80°F)27°C (80°F)27°C (81°F)27°C (81°F)28°C (82°F)28°C (82°F)27°C (81°F)
Waves
Height0.8m (2.8ft)0.9m (3.0ft)1.0m (3.3ft)1.2m (3.8ft)1.2m (4.1ft)1.3m (4.2ft)1.2m (4.0ft)1.2m (3.9ft)
Direction
N
356°
N
349°
NNW
348°
NNW
350°
N
356°
N
358°
N

N
Period9.9 sec.9.8 sec.9.5 sec.8.9 sec.8.6 sec.8.3 sec.8.0 sec.7.8 sec.
Significant height0.9m (3ft)0.9m (3ft)1.0m (3.3ft)1.1m (3.6ft)1.2m (3.9ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)

Sea weather on Saturday 31 January 2026

On Saturday 31 January 2026, the sun will rise at 06:48 and will set at 18:21 on the beach(es) of Guam (Marianas). The outside temperature will be a high of 81°F t and a low of 81°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 19.3mph km/h (with gusts up to 28mph). Wave height will be up to 5.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (81°F)27°C (81°F)27°C (80°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)
Perceived temperature31°C (87°F)30°C (87°F)30°C (86°F)31°C (88°F)30°C (87°F)31°C (87°F)31°C (87°F)30°C (87°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%81%80%79%79%78%80%81%
Barometric pressure1013 hPa1011 hPa1012 hPa1014 hPa1012 hPa1010 hPa1011 hPa1013 hPa
Cloud cover85%78%61%59%71%63%71%61%
Heat index31°C (87°F)30°C (87°F)30°C (86°F)31°C (88°F)30°C (87°F)31°C (87°F)31°C (87°F)30°C (87°F)
Dew point24°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)
Wind
Speed22km/h (14mph)24km/h (15mph)27km/h (17mph)30km/h (19mph)31km/h (19mph)31km/h (19mph)31km/h (19mph)31km/h (19mph)
Gusts31km/h (19mph)33km/h (21mph)38km/h (23mph)41km/h (25mph)44km/h (28mph)44km/h (28mph)44km/h (27mph)45km/h (28mph)
Direction 65°
ENE
53°
NE
54°
NE
55°
NE
56°
NE
58°
ENE
60°
ENE
68°
ENE
Wind chill27°C (81°F)27°C (81°F)27°C (80°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)
Waves
Height1.2m (4.0ft)1.2m (4.1ft)1.3m (4.2ft)1.3m (4.3ft)1.4m (4.7ft)1.5m (5.1ft)1.6m (5.3ft)1.6m (5.3ft)
Direction
N

N

N

N
357°
N
356°
N
356°
N
356°
N
Period7.9 sec.11.0 sec.7.8 sec.7.6 sec.8.3 sec.8.3 sec.8.4 sec.12.2 sec.
Significant height0.7m (2.3ft)0.9m (3ft)1.4m (4.6ft)1.7m (5.6ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)1.1m (3.6ft)
Sea water temperature
Water temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)

Sea weather on Sunday 1 February 2026

On Sunday 1 February 2026, the sun will rise at 06:48 and will set at 18:21 on the beach(es) of Guam (Marianas). The outside temperature will be a high of 81°F t and a low of 81°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 23mph km/h (with gusts up to 33.6mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (80°F)
Perceived temperature31°C (87°F)30°C (87°F)31°C (87°F)31°C (87°F)30°C (86°F)30°C (87°F)31°C (87°F)30°C (86°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%80%79%79%79%80%80%82%
Barometric pressure1012 hPa1011 hPa1012 hPa1014 hPa1012 hPa1011 hPa1012 hPa1013 hPa
Cloud cover53%57%67%63%86%96%81%57%
Heat index31°C (87°F)30°C (87°F)31°C (87°F)31°C (87°F)30°C (86°F)30°C (87°F)31°C (87°F)30°C (86°F)
Dew point23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)
Wind
Speed29km/h (18mph)30km/h (19mph)32km/h (20mph)34km/h (21mph)36km/h (22mph)37km/h (23mph)35km/h (21mph)35km/h (22mph)
Gusts40km/h (25mph)42km/h (26mph)44km/h (27mph)48km/h (30mph)51km/h (32mph)54km/h (34mph)48km/h (30mph)49km/h (31mph)
Direction 66°
ENE
60°
ENE
58°
ENE
60°
ENE
59°
ENE
56°
NE
62°
ENE
60°
ENE
Wind chill27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (80°F)
Waves
Height1.6m (5.3ft)1.6m (5.2ft)1.6m (5.2ft)1.6m (5.2ft)1.6m (5.3ft)1.6m (5.4ft)1.7m (5.6ft)1.7m (5.7ft)
Direction 355°
N
354°
N
354°
N
355°
N

N

N

N
10°
N
Period13.5 sec.12.5 sec.12.6 sec.12.5 sec.12.3 sec.11.9 sec.11.7 sec.11.7 sec.
Significant height1.0m (3.3ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.3m (4.3ft)1.0m (3.3ft)1.3m (4.3ft)
Sea water temperature
Water temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)

Sea weather on Monday 2 February 2026

On Monday 2 February 2026, the sun will rise at 06:48 and will set at 18:22 on the beach(es) of Guam (Marianas). The outside temperature will be a high of 81°F t and a low of 81°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 23.6mph km/h (with gusts up to 34.2mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (80°F)27°C (80°F)27°C (81°F)27°C (80°F)
Perceived temperature31°C (87°F)30°C (87°F)30°C (87°F)31°C (87°F)30°C (86°F)30°C (86°F)31°C (87°F)31°C (87°F)
Precipitation0in0in0in0in0in0in0in0.1in
Humidity82%81%80%81%81%81%82%83%
Barometric pressure1013 hPa1011 hPa1012 hPa1013 hPa1012 hPa1010 hPa1011 hPa1012 hPa
Cloud cover60%69%67%57%53%78%65%75%
Heat index31°C (87°F)30°C (87°F)30°C (87°F)31°C (87°F)30°C (86°F)30°C (86°F)31°C (87°F)31°C (87°F)
Dew point24°C (75°F)23°C (74°F)23°C (74°F)24°C (74°F)23°C (74°F)23°C (74°F)24°C (75°F)24°C (75°F)
Wind
Speed35km/h (21mph)36km/h (22mph)36km/h (22mph)38km/h (23mph)37km/h (23mph)37km/h (23mph)34km/h (21mph)32km/h (20mph)
Gusts47km/h (29mph)49km/h (30mph)49km/h (31mph)51km/h (32mph)55km/h (34mph)52km/h (33mph)48km/h (30mph)49km/h (31mph)
Direction 59°
ENE
58°
ENE
62°
ENE
69°
ENE
76°
ENE
76°
ENE
76°
ENE
79°
ENE
Wind chill27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (80°F)27°C (80°F)27°C (81°F)27°C (80°F)
Waves
Height1.7m (5.7ft)1.7m (5.5ft)1.7m (5.5ft)1.7m (5.4ft)1.6m (5.4ft)1.6m (5.2ft)1.5m (5.1ft)1.5m (4.9ft)
Direction 13°
NNE
16°
NNE
17°
NNE
19°
NNE
23°
NNE
28°
NNE
29°
NNE
31°
NNE
Period14.0 sec.13.7 sec.13.5 sec.13.2 sec.11.2 sec.9.3 sec.9.2 sec.9.2 sec.
Significant height1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.3m (4.3ft)1.4m (4.6ft)1.4m (4.6ft)1.3m (4.3ft)1.3m (4.3ft)
Sea water temperature
Water temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)

Sea weather on Tuesday 3 February 2026

On Tuesday 3 February 2026, the sun will rise at 06:48 and will set at 18:22 on the beach(es) of Guam (Marianas). The outside temperature will be a high of 81°F t and a low of 79°F. Precipitation is in the forecast (0.5in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 19.3mph km/h (with gusts up to 21.8mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (80°F)26°C (79°F)26°C (78°F)26°C (79°F)26°C (79°F)27°C (80°F)27°C (80°F)27°C (80°F)
Perceived temperature30°C (86°F)30°C (85°F)29°C (84°F)30°C (85°F)30°C (85°F)30°C (86°F)30°C (86°F)30°C (86°F)
Precipitation0in0in0.1in0.1in0.1in0.1in0.1in0.1in
Humidity85%88%90%86%85%85%84%85%
Barometric pressure1012 hPa1011 hPa1010 hPa1012 hPa1011 hPa1009 hPa1009 hPa1010 hPa
Cloud cover77%97%91%70%60%53%47%54%
Heat index30°C (86°F)30°C (85°F)29°C (84°F)30°C (85°F)30°C (85°F)30°C (86°F)30°C (86°F)30°C (86°F)
Dew point24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (74°F)24°C (75°F)24°C (75°F)24°C (75°F)
Wind
Speed31km/h (19mph)29km/h (18mph)28km/h (17mph)27km/h (17mph)27km/h (17mph)28km/h (17mph)30km/h (19mph)31km/h (19mph)
Gusts33km/h (21mph)31km/h (19mph)28km/h (18mph)31km/h (19mph)32km/h (20mph)31km/h (19mph)33km/h (21mph)35km/h (22mph)
Direction 80°
E
74°
ENE
83°
E
78°
ENE
75°
ENE
77°
ENE
71°
ENE
73°
ENE
Wind chill27°C (80°F)26°C (79°F)26°C (78°F)26°C (79°F)26°C (79°F)27°C (80°F)27°C (80°F)27°C (80°F)
Waves
Height1.4m (4.6ft)1.4m (4.6ft)1.3m (4.3ft)1.3m (4.3ft)1.3m (4.3ft)1.3m (4.3ft)1.3m (4.3ft)1.3m (4.3ft)
Direction 34°
NNE
37°
NE
35°
NE
35°
NE
35°
NE
35°
NE
35°
NE
35°
NE
Period9.0 sec.9.0 sec.9.9 sec.11.3 sec.11.6 sec.11.3 sec.11.0 sec.10.6 sec.
Significant height1.2m (3.9ft)1.2m (3.9ft)1.4m (4.6ft)1.5m (4.9ft)1.5m (4.9ft)1.4m (4.6ft)1.4m (4.6ft)1.3m (4.3ft)
Sea water temperature
Water temperature28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)

Sea weather on Wednesday 4 February 2026

On Wednesday 4 February 2026, the sun will rise at 06:48 and will set at 18:23 on the beach(es) of Guam (Marianas). The outside temperature will be a high of 81°F t and a low of 77°F. Precipitation is in the forecast (0.6in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 18.6mph km/h (with gusts up to 23mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)26°C (79°F)26°C (78°F)25°C (77°F)25°C (77°F)
Perceived temperature30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)29°C (85°F)28°C (83°F)28°C (82°F)28°C (83°F)
Precipitation0.1in0.1in0.1in0in0in0.1in0.2in0.1in
Humidity85%84%83%82%83%86%90%91%
Barometric pressure1010 hPa1008 hPa1009 hPa1010 hPa1009 hPa1008 hPa1008 hPa1010 hPa
Cloud cover48%63%61%55%62%86%92%75%
Heat index30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)29°C (85°F)28°C (83°F)28°C (82°F)28°C (83°F)
Dew point24°C (75°F)24°C (75°F)24°C (74°F)24°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)24°C (74°F)
Wind
Speed30km/h (19mph)28km/h (17mph)24km/h (15mph)21km/h (13mph)19km/h (12mph)18km/h (11mph)17km/h (11mph)18km/h (11mph)
Gusts37km/h (23mph)31km/h (19mph)27km/h (17mph)24km/h (15mph)28km/h (17mph)33km/h (20mph)27km/h (17mph)31km/h (19mph)
Direction 83°
E
88°
E
95°
E
104°
ESE
92°
E
71°
ENE
57°
ENE
68°
ENE
Wind chill27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)26°C (79°F)26°C (78°F)25°C (77°F)25°C (77°F)
Waves
Height1.2m (3.9ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.3m (4.3ft)
Direction 33°
NNE
28°
NNE
21°
NNE
16°
NNE
12°
NNE

N
241°
WSW
359°
N
Period10.4 sec.10.2 sec.8.6 sec.6.6 sec.7.3 sec.8.2 sec.8.3 sec.8.4 sec.
Significant height1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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