Sea weather in Santo António in Sao Tome and Principe All the beach weather in Santo António

All the essential weather information for enjoying the beach in Santo António in Sao Tome and Principe, 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 Santo António over the next 7 days?

Discover the best moment to go to the beach in Santo António in Sao Tome and Principe this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Santo António. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Sunday 14 December 202579°F to 81°Fdiscouraged
Monday 15 December 202579°F to 81°Frecommended
Tuesday 16 December 202579°F to 81°Frecommended
Wednesday 17 December 202579°F to 81°Frecommended
Thursday 18 December 202579°F to 81°Frecommended
Friday 19 December 202577°F to 81°Frecommended
Saturday 20 December 202579°F to 81°Frecommended

Sea Weather: Your daily and hourly sea weather in Santo António

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 05:24 and will set at 17:26 on the beach(es) of Santo António. The outside temperature will be a high of 81°F t and a low of 79°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 13.7mph km/h (with gusts up to 20.5mph). 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)27°C (80°F)27°C (80°F)27°C (80°F)
Perceived temperature30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)29°C (84°F)29°C (85°F)30°C (86°F)30°C (86°F)
Precipitation0in0in0in0.1in0in0in0in0in
Humidity79%80%81%81%80%79%79%79%
Barometric pressure1010 hPa1009 hPa1010 hPa1011 hPa1009 hPa1008 hPa1010 hPa1011 hPa
Cloud cover47%39%82%82%22%19%38%89%
Heat index30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)29°C (84°F)29°C (85°F)30°C (86°F)30°C (86°F)
Dew point23°C (73°F)23°C (73°F)23°C (74°F)23°C (74°F)23°C (73°F)23°C (73°F)23°C (73°F)23°C (73°F)
Wind
Speed22km/h (13mph)19km/h (12mph)18km/h (11mph)18km/h (11mph)18km/h (11mph)13km/h (8mph)9km/h (6mph)8km/h (5mph)
Gusts29km/h (18mph)26km/h (16mph)26km/h (16mph)33km/h (20mph)31km/h (19mph)20km/h (12mph)13km/h (8mph)11km/h (7mph)
Direction 214°
SSW
216°
SW
187°
S
173°
S
178°
S
204°
SSW
229°
SW
222°
SW
Wind chill27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)26°C (79°F)27°C (80°F)27°C (80°F)27°C (80°F)
Waves
Height0.9m (3.0ft)1.0m (3.4ft)1.2m (3.8ft)1.2m (4.1ft)1.3m (4.2ft)1.2m (4.1ft)1.2m (4.0ft)1.2m (4.1ft)
Direction 207°
SSW
205°
SSW
204°
SSW
210°
SSW
208°
SSW
203°
SSW
202°
SSW
210°
SSW
Period14.2 sec.18.2 sec.17.7 sec.6.2 sec.16.7 sec.6.3 sec.6.3 sec.6.2 sec.
Significant height0.8m (2.6ft)0.7m (2.3ft)0.8m (2.6ft)0.6m (2ft)0.8m (2.6ft)0.5m (1.6ft)1.1m (3.6ft)1.1m (3.6ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 05:25 and will set at 17:27 on the beach(es) of Santo António. The outside temperature will be a high of 81°F t and a low of 79°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 12.4mph km/h (with gusts up to 16.8mph). Wave height will be up to 3.9ft 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 (81°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)
Perceived temperature30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)29°C (85°F)30°C (86°F)30°C (85°F)30°C (86°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%80%80%79%78%78%81%81%
Barometric pressure1010 hPa1009 hPa1010 hPa1011 hPa1010 hPa1008 hPa1010 hPa1012 hPa
Cloud cover32%56%28%18%55%57%79%22%
Heat index30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)29°C (85°F)30°C (86°F)30°C (85°F)30°C (86°F)
Dew point23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)22°C (72°F)23°C (73°F)23°C (73°F)23°C (74°F)
Wind
Speed15km/h (9mph)17km/h (11mph)20km/h (12mph)17km/h (11mph)11km/h (7mph)14km/h (9mph)12km/h (7mph)14km/h (9mph)
Gusts20km/h (13mph)24km/h (15mph)27km/h (17mph)24km/h (15mph)17km/h (10mph)20km/h (13mph)17km/h (10mph)20km/h (12mph)
Direction 233°
SW
242°
WSW
231°
SW
216°
SW
226°
SW
254°
WSW
250°
WSW
231°
SW
Wind chill27°C (80°F)27°C (80°F)27°C (80°F)27°C (81°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)
Waves
Height1.2m (3.9ft)1.2m (3.8ft)1.2m (3.9ft)1.2m (4.0ft)1.2m (4.0ft)1.2m (3.9ft)1.1m (3.7ft)1.1m (3.7ft)
Direction 209°
SSW
203°
SSW
202°
SSW
202°
SSW
210°
SSW
210°
SSW
203°
SSW
202°
SSW
Period6.1 sec.15.5 sec.15.8 sec.15.7 sec.13.7 sec.13.9 sec.14.2 sec.14.3 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.3m (4.3ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 05:25 and will set at 17:27 on the beach(es) of Santo António. The outside temperature will be a high of 81°F t and a low of 79°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 11.8mph km/h (with gusts up to 16.2mph). Wave height will be up to 3.9ft 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)27°C (80°F)26°C (79°F)27°C (80°F)
Perceived temperature30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)29°C (84°F)29°C (85°F)28°C (83°F)30°C (86°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%81%81%81%80%78%79%79%
Barometric pressure1011 hPa1010 hPa1011 hPa1012 hPa1010 hPa1008 hPa1010 hPa1011 hPa
Cloud cover21%47%88%70%80%87%13%12%
Heat index30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)29°C (84°F)29°C (85°F)28°C (83°F)30°C (86°F)
Dew point23°C (73°F)23°C (74°F)23°C (74°F)23°C (74°F)22°C (72°F)23°C (73°F)22°C (72°F)23°C (73°F)
Wind
Speed13km/h (8mph)19km/h (12mph)18km/h (11mph)13km/h (8mph)12km/h (7mph)13km/h (8mph)10km/h (6mph)12km/h (7mph)
Gusts18km/h (11mph)26km/h (16mph)25km/h (16mph)18km/h (11mph)19km/h (12mph)20km/h (13mph)16km/h (10mph)17km/h (11mph)
Direction 245°
WSW
246°
WSW
236°
WSW
245°
WSW
276°
W
278°
W
260°
W
218°
SW
Wind chill27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)26°C (79°F)27°C (80°F)26°C (79°F)27°C (80°F)
Waves
Height1.2m (3.8ft)1.2m (3.8ft)1.2m (3.8ft)1.2m (3.8ft)1.1m (3.8ft)1.1m (3.7ft)1.1m (3.7ft)1.1m (3.6ft)
Direction 200°
SSW
204°
SSW
202°
SSW
201°
SSW
200°
SSW
199°
SSW
199°
SSW
200°
SSW
Period14.2 sec.13.6 sec.13.4 sec.13.3 sec.13.2 sec.13.1 sec.12.8 sec.12.5 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.3m (4.3ft)1.3m (4.3ft)1.3m (4.3ft)1.0m (3.3ft)1.0m (3.3ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 05:26 and will set at 17:28 on the beach(es) of Santo António. The outside temperature will be a high of 81°F t and a low of 79°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 11.8mph km/h (with gusts up to 16.2mph). 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 (80°F)27°C (81°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)
Perceived temperature30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)29°C (84°F)30°C (86°F)30°C (85°F)29°C (85°F)
Precipitation0in0in0in0in0in0in0.1in0in
Humidity78%77%77%77%77%77%78%78%
Barometric pressure1010 hPa1009 hPa1011 hPa1012 hPa1010 hPa1008 hPa1010 hPa1012 hPa
Cloud cover29%42%54%85%42%44%70%88%
Heat index30°C (86°F)30°C (86°F)30°C (86°F)30°C (86°F)29°C (84°F)30°C (86°F)30°C (85°F)29°C (85°F)
Dew point23°C (73°F)23°C (73°F)23°C (73°F)23°C (73°F)22°C (72°F)22°C (72°F)23°C (73°F)22°C (72°F)
Wind
Speed17km/h (11mph)19km/h (12mph)17km/h (10mph)15km/h (9mph)14km/h (9mph)13km/h (8mph)11km/h (7mph)8km/h (5mph)
Gusts24km/h (15mph)26km/h (16mph)23km/h (14mph)21km/h (13mph)21km/h (13mph)18km/h (11mph)16km/h (10mph)12km/h (7mph)
Direction 219°
SW
222°
SW
212°
SSW
201°
SSW
225°
SW
220°
SW
204°
SSW
177°
S
Wind chill27°C (81°F)27°C (81°F)27°C (80°F)27°C (81°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)
Waves
Height1.1m (3.6ft)1.1m (3.6ft)1.1m (3.7ft)1.1m (3.7ft)1.1m (3.7ft)1.1m (3.7ft)1.1m (3.6ft)1.1m (3.7ft)
Direction 199°
SSW
199°
SSW
199°
SSW
199°
SSW
199°
SSW
198°
SSW
197°
SSW
196°
SSW
Period12.4 sec.12.3 sec.12.1 sec.12.0 sec.11.9 sec.11.9 sec.11.8 sec.11.6 sec.
Significant height1.0m (3.3ft)1.1m (3.6ft)1.3m (4.3ft)1.3m (4.3ft)1.0m (3.3ft)1.0m (3.3ft)0.4m (1.3ft)0.3m (1ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 05:26 and will set at 17:28 on the beach(es) of Santo António. The outside temperature will be a high of 81°F t and a low of 79°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 8.7mph km/h (with gusts up to 12.4mph). Wave height will be up to 3.9ft 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)27°C (80°F)27°C (81°F)27°C (80°F)
Perceived temperature30°C (85°F)30°C (85°F)30°C (85°F)30°C (86°F)28°C (83°F)29°C (85°F)30°C (86°F)30°C (85°F)
Precipitation0in0in0in0in0.1in0in0in0in
Humidity78%79%78%78%78%72%77%78%
Barometric pressure1011 hPa1010 hPa1011 hPa1013 hPa1011 hPa1010 hPa1011 hPa1013 hPa
Cloud cover11%14%13%89%71%16%37%73%
Heat index30°C (85°F)30°C (85°F)30°C (85°F)30°C (86°F)28°C (83°F)29°C (85°F)30°C (86°F)30°C (85°F)
Dew point23°C (73°F)23°C (73°F)23°C (73°F)23°C (73°F)22°C (71°F)21°C (71°F)23°C (73°F)23°C (73°F)
Wind
Speed11km/h (7mph)14km/h (9mph)11km/h (7mph)12km/h (7mph)8km/h (5mph)10km/h (6mph)14km/h (9mph)11km/h (7mph)
Gusts15km/h (10mph)20km/h (12mph)15km/h (10mph)16km/h (10mph)12km/h (8mph)16km/h (10mph)20km/h (12mph)15km/h (9mph)
Direction 194°
SSW
234°
SW
223°
SW
191°
S
235°
SW
234°
SW
202°
SSW
208°
SSW
Wind chill27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)26°C (79°F)27°C (80°F)27°C (81°F)27°C (80°F)
Waves
Height1.1m (3.8ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.8ft)1.1m (3.7ft)1.1m (3.7ft)1.1m (3.7ft)1.1m (3.7ft)
Direction 197°
SSW
197°
SSW
231°
SW
196°
SSW
196°
SSW
195°
SSW
222°
SW
224°
SW
Period11.3 sec.11.1 sec.10.9 sec.10.8 sec.10.7 sec.10.7 sec.10.6 sec.10.5 sec.
Significant height0.3m (1ft)0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)1.1m (3.6ft)1.1m (3.6ft)1.0m (3.3ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 05:27 and will set at 17:29 on the beach(es) of Santo António. The outside temperature will be a high of 81°F t and a low of 77°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 8.7mph 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 (80°F)27°C (80°F)27°C (80°F)26°C (80°F)26°C (78°F)25°C (77°F)26°C (79°F)27°C (80°F)
Perceived temperature30°C (85°F)30°C (85°F)30°C (86°F)29°C (85°F)28°C (82°F)26°C (80°F)28°C (83°F)29°C (85°F)
Precipitation0in0in0in0.1in0in0in0in0in
Humidity79%80%80%81%77%71%72%73%
Barometric pressure1012 hPa1011 hPa1011 hPa1013 hPa1011 hPa1009 hPa1010 hPa1011 hPa
Cloud cover70%59%65%72%88%14%14%8%
Heat index30°C (85°F)30°C (85°F)30°C (86°F)29°C (85°F)28°C (82°F)26°C (80°F)28°C (83°F)29°C (85°F)
Dew point23°C (73°F)23°C (73°F)23°C (73°F)23°C (73°F)21°C (70°F)19°C (67°F)21°C (70°F)22°C (71°F)
Wind
Speed10km/h (6mph)13km/h (8mph)14km/h (9mph)10km/h (6mph)7km/h (4mph)11km/h (7mph)10km/h (6mph)8km/h (5mph)
Gusts14km/h (9mph)18km/h (11mph)20km/h (12mph)15km/h (9mph)11km/h (7mph)21km/h (13mph)16km/h (10mph)11km/h (7mph)
Direction 220°
SW
231°
SW
227°
SW
206°
SSW
183°
S
187°
S
206°
SSW
202°
SSW
Wind chill27°C (80°F)27°C (80°F)27°C (80°F)26°C (80°F)26°C (78°F)25°C (77°F)26°C (79°F)27°C (80°F)
Waves
Height1.1m (3.5ft)1.0m (3.4ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.2ft)1.0m (3.1ft)0.9m (3.1ft)0.9m (3.1ft)
Direction 226°
SW
226°
SW
226°
SW
214°
SW
218°
SW
221°
SW
223°
SW
225°
SW
Period10.4 sec.10.2 sec.10.0 sec.9.9 sec.9.8 sec.9.8 sec.9.8 sec.9.7 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.3m (4.3ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)1.2m (3.9ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Saturday 20 December 2025

On Saturday 20 December 2025, the sun will rise at 05:27 and will set at 17:29 on the beach(es) of Santo António. The outside temperature will be a high of 81°F t and a low of 79°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 10.6mph km/h (with gusts up to 14.3mph). Wave height will be up to 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)27°C (80°F)27°C (81°F)27°C (80°F)
Perceived temperature29°C (85°F)29°C (85°F)29°C (85°F)30°C (86°F)29°C (84°F)29°C (85°F)30°C (86°F)30°C (85°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity76%78%79%79%78%76%76%79%
Barometric pressure1010 hPa1009 hPa1011 hPa1012 hPa1010 hPa1008 hPa1009 hPa1011 hPa
Cloud cover29%56%67%86%35%41%44%72%
Heat index29°C (85°F)29°C (85°F)29°C (85°F)30°C (86°F)29°C (84°F)29°C (85°F)30°C (86°F)30°C (85°F)
Dew point22°C (72°F)23°C (73°F)23°C (73°F)23°C (73°F)22°C (72°F)22°C (72°F)22°C (72°F)23°C (73°F)
Wind
Speed14km/h (9mph)17km/h (11mph)15km/h (9mph)12km/h (8mph)9km/h (6mph)10km/h (6mph)9km/h (6mph)9km/h (6mph)
Gusts19km/h (12mph)23km/h (14mph)21km/h (13mph)17km/h (10mph)14km/h (9mph)15km/h (9mph)13km/h (8mph)13km/h (8mph)
Direction 222°
SW
219°
SW
212°
SSW
220°
SW
225°
SW
235°
SW
259°
W
267°
W
Wind chill27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)26°C (79°F)27°C (80°F)27°C (81°F)27°C (80°F)
Waves
Height0.9m (3.1ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (2.9ft)0.9m (2.9ft)0.9m (3.1ft)
Direction 227°
SW
227°
SW
218°
SW
201°
SSW
198°
SSW
197°
SSW
203°
SSW
200°
SSW
Period9.7 sec.9.7 sec.9.6 sec.9.2 sec.5.4 sec.5.5 sec.5.6 sec.5.7 sec.
Significant height1.3m (4.3ft)1.2m (3.9ft)0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)1.0m (3.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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