Sea weather in Blenheim in New Zealand All the beach weather in Blenheim

All the essential weather information for enjoying the beach in Blenheim in New Zealand, 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 Blenheim over the next 7 days?

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

Date Outside temp. Our opinion
Saturday 18 July 202645°F to 50°Frecommended
Sunday 19 July 202649°F to 52°Fdiscouraged
Monday 20 July 202649°F to 50°Frecommended
Tuesday 21 July 202645°F to 52°Frecommended
Wednesday 22 July 202647°F to 50°Frecommended
Thursday 23 July 202645°F to 52°Fdiscouraged
Friday 24 July 202647°F to 54°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Blenheim

Sea weather on Saturday 18 July 2026

On Saturday 18 July 2026, the sun will rise at 07:45 and will set at 17:16 on the beach(es) of Blenheim. The outside temperature will be a high of 50°F t and a low of 45°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 20.5mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (47°F)8°C (46°F)8°C (46°F)8°C (47°F)8°C (47°F)9°C (49°F)8°C (46°F)9°C (48°F)
Perceived temperature6°C (43°F)6°C (43°F)6°C (42°F)6°C (43°F)8°C (47°F)8°C (46°F)5°C (41°F)7°C (44°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity76%70%67%65%58%66%78%83%
Barometric pressure1022 hPa1021 hPa1022 hPa1023 hPa1023 hPa1021 hPa1020 hPa1020 hPa
Cloud cover0%0%0%0%1%6%3%3%
Heat index9°C (47°F)8°C (46°F)8°C (46°F)8°C (47°F)8°C (47°F)9°C (49°F)8°C (46°F)9°C (48°F)
Dew point5°C (40°F)3°C (37°F)2°C (36°F)2°C (36°F)1°C (33°F)3°C (38°F)4°C (39°F)6°C (43°F)
Wind
Speed14km/h (9mph)9km/h (6mph)12km/h (7mph)12km/h (7mph)3km/h (2mph)12km/h (7mph)15km/h (10mph)12km/h (8mph)
Gusts24km/h (15mph)15km/h (9mph)20km/h (12mph)19km/h (12mph)7km/h (4mph)20km/h (13mph)33km/h (20mph)22km/h (13mph)
Direction 243°
WSW
278°
W
234°
SW
242°
WSW
275°
W
27°
NNE

N
281°
W
Wind chill6°C (43°F)6°C (43°F)6°C (42°F)6°C (43°F)8°C (47°F)8°C (46°F)5°C (41°F)7°C (44°F)
Waves
Height1.3m (4.4ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.2ft)1.0m (3.2ft)1.0m (3.2ft)1.0m (3.2ft)1.0m (3.1ft)
Direction 121°
ESE
116°
ESE
117°
ESE
118°
ESE
118°
ESE
118°
ESE
118°
ESE
119°
ESE
Period15.1 sec.14.9 sec.14.7 sec.14.4 sec.14.3 sec.14.2 sec.13.9 sec.13.7 sec.
Significant height0.2m (0.7ft)0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.1m (0.3ft)0.1m (0.3ft)0.4m (1.3ft)0.3m (1ft)
Sea water temperature
Water temperature12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)

Sea weather on Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 07:44 and will set at 17:17 on the beach(es) of Blenheim. The outside temperature will be a high of 52°F t and a low of 49°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 16.8mph km/h (with gusts up to 25.5mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (47°F)9°C (48°F)9°C (48°F)10°C (50°F)11°C (51°F)10°C (51°F)10°C (49°F)10°C (50°F)
Perceived temperature6°C (43°F)7°C (44°F)8°C (46°F)8°C (47°F)8°C (47°F)7°C (45°F)7°C (44°F)7°C (45°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%72%68%66%72%82%82%79%
Barometric pressure1019 hPa1020 hPa1022 hPa1024 hPa1026 hPa1025 hPa1027 hPa1028 hPa
Cloud cover20%13%45%6%19%31%46%81%
Heat index9°C (47°F)9°C (48°F)9°C (48°F)10°C (50°F)11°C (51°F)10°C (51°F)10°C (49°F)10°C (50°F)
Dew point5°C (41°F)4°C (39°F)4°C (38°F)4°C (39°F)6°C (43°F)8°C (46°F)7°C (44°F)6°C (43°F)
Wind
Speed15km/h (9mph)12km/h (7mph)10km/h (6mph)11km/h (7mph)19km/h (12mph)27km/h (17mph)21km/h (13mph)19km/h (12mph)
Gusts26km/h (16mph)20km/h (13mph)18km/h (11mph)18km/h (11mph)29km/h (18mph)41km/h (25mph)34km/h (21mph)28km/h (18mph)
Direction 250°
WSW
237°
WSW
252°
WSW
200°
SSW
169°
S
159°
SSE
153°
SSE
161°
SSE
Wind chill6°C (43°F)7°C (44°F)8°C (46°F)8°C (47°F)8°C (47°F)7°C (45°F)7°C (44°F)7°C (45°F)
Waves
Height0.9m (3.1ft)0.9m (3.0ft)0.9m (2.9ft)0.8m (2.7ft)0.8m (2.7ft)0.8m (2.8ft)0.9m (2.9ft)0.8m (2.8ft)
Direction 120°
ESE
120°
ESE
121°
ESE
121°
ESE
121°
ESE
122°
ESE
122°
ESE
122°
ESE
Period13.5 sec.13.4 sec.13.2 sec.13.0 sec.12.9 sec.12.9 sec.12.7 sec.12.5 sec.
Significant height0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.2m (0.7ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 07:43 and will set at 17:17 on the beach(es) of Blenheim. The outside temperature will be a high of 50°F t and a low of 49°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 18mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (49°F)9°C (49°F)9°C (48°F)9°C (49°F)10°C (50°F)10°C (49°F)9°C (48°F)9°C (48°F)
Perceived temperature7°C (45°F)7°C (44°F)6°C (44°F)7°C (44°F)7°C (45°F)7°C (45°F)6°C (44°F)7°C (44°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity71%69%72%73%71%72%73%75%
Barometric pressure1028 hPa1028 hPa1028 hPa1029 hPa1030 hPa1029 hPa1029 hPa1030 hPa
Cloud cover59%53%100%51%79%100%28%77%
Heat index10°C (49°F)9°C (49°F)9°C (48°F)9°C (49°F)10°C (50°F)10°C (49°F)9°C (48°F)9°C (48°F)
Dew point5°C (40°F)4°C (39°F)4°C (40°F)5°C (40°F)5°C (41°F)5°C (41°F)4°C (40°F)5°C (40°F)
Wind
Speed19km/h (12mph)20km/h (12mph)17km/h (11mph)16km/h (10mph)19km/h (12mph)18km/h (11mph)15km/h (9mph)13km/h (8mph)
Gusts28km/h (17mph)29km/h (18mph)25km/h (16mph)23km/h (14mph)26km/h (16mph)26km/h (16mph)24km/h (15mph)19km/h (12mph)
Direction 156°
SSE
153°
SSE
163°
SSE
163°
SSE
148°
SSE
147°
SSE
141°
SE
164°
SSE
Wind chill7°C (45°F)7°C (44°F)6°C (44°F)7°C (44°F)7°C (45°F)7°C (45°F)6°C (44°F)7°C (44°F)
Waves
Height0.8m (2.8ft)0.9m (3.0ft)0.9m (2.9ft)0.9m (2.9ft)0.9m (2.9ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)
Direction 123°
ESE
123°
ESE
123°
ESE
125°
SE
127°
SE
129°
SE
143°
SE
145°
SE
Period12.4 sec.12.2 sec.12.0 sec.11.9 sec.11.8 sec.18.2 sec.17.8 sec.8.6 sec.
Significant height0.6m (2ft)0.7m (2.3ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.2m (0.7ft)
Sea water temperature
Water temperature12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 07:43 and will set at 17:18 on the beach(es) of Blenheim. The outside temperature will be a high of 52°F t and a low of 45°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 20.5mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (47°F)8°C (46°F)7°C (45°F)8°C (46°F)9°C (48°F)11°C (52°F)10°C (49°F)9°C (48°F)
Perceived temperature7°C (45°F)6°C (43°F)5°C (42°F)5°C (42°F)7°C (44°F)9°C (47°F)7°C (45°F)7°C (44°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%81%79%77%70%72%82%82%
Barometric pressure1029 hPa1028 hPa1027 hPa1027 hPa1025 hPa1022 hPa1022 hPa1021 hPa
Cloud cover21%3%0%4%17%100%46%46%
Heat index8°C (47°F)8°C (46°F)7°C (45°F)8°C (46°F)9°C (48°F)11°C (52°F)10°C (49°F)9°C (48°F)
Dew point5°C (40°F)5°C (40°F)4°C (39°F)4°C (39°F)4°C (39°F)6°C (43°F)7°C (44°F)6°C (43°F)
Wind
Speed7km/h (4mph)9km/h (5mph)10km/h (6mph)13km/h (8mph)15km/h (10mph)20km/h (13mph)19km/h (12mph)14km/h (9mph)
Gusts11km/h (7mph)14km/h (8mph)15km/h (10mph)19km/h (12mph)23km/h (14mph)30km/h (19mph)33km/h (21mph)25km/h (15mph)
Direction 199°
SSW
261°
W
303°
WNW
319°
NW
329°
NNW
342°
NNW
328°
NNW
290°
WNW
Wind chill7°C (45°F)6°C (43°F)5°C (42°F)5°C (42°F)7°C (44°F)9°C (47°F)7°C (45°F)7°C (44°F)
Waves
Height0.9m (2.8ft)0.8m (2.7ft)0.8m (2.5ft)0.7m (2.4ft)0.7m (2.4ft)0.7m (2.4ft)0.7m (2.3ft)0.7m (2.2ft)
Direction 144°
SE
147°
SSE
135°
SE
151°
SSE
149°
SSE
149°
SSE
151°
SSE
147°
SSE
Period8.6 sec.10.0 sec.10.0 sec.10.0 sec.9.4 sec.13.1 sec.12.5 sec.12.2 sec.
Significant height0.1m (0.3ft)0.3m (1ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.7m (2.3ft)0.5m (1.6ft)0.6m (2ft)
Sea water temperature
Water temperature12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 07:42 and will set at 17:19 on the beach(es) of Blenheim. The outside temperature will be a high of 50°F t and a low of 47°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 19.3mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (48°F)9°C (48°F)9°C (48°F)9°C (49°F)10°C (49°F)8°C (46°F)8°C (46°F)9°C (48°F)
Perceived temperature7°C (45°F)7°C (45°F)8°C (46°F)8°C (47°F)8°C (47°F)5°C (41°F)6°C (42°F)8°C (46°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%74%68%67%64%68%78%80%
Barometric pressure1021 hPa1021 hPa1021 hPa1023 hPa1023 hPa1022 hPa1023 hPa1023 hPa
Cloud cover100%100%100%46%6%2%4%4%
Heat index9°C (48°F)9°C (48°F)9°C (48°F)9°C (49°F)10°C (49°F)8°C (46°F)8°C (46°F)9°C (48°F)
Dew point5°C (42°F)5°C (40°F)3°C (38°F)4°C (39°F)3°C (37°F)2°C (36°F)4°C (39°F)5°C (42°F)
Wind
Speed11km/h (7mph)10km/h (6mph)9km/h (5mph)9km/h (5mph)10km/h (6mph)15km/h (9mph)13km/h (8mph)8km/h (5mph)
Gusts19km/h (12mph)18km/h (11mph)15km/h (9mph)13km/h (8mph)16km/h (10mph)31km/h (19mph)25km/h (16mph)12km/h (8mph)
Direction 271°
W
252°
WSW
221°
SW
206°
SSW
175°
S
153°
SSE
158°
SSE
207°
SSW
Wind chill7°C (45°F)7°C (45°F)8°C (46°F)8°C (47°F)8°C (47°F)5°C (41°F)6°C (42°F)8°C (46°F)
Waves
Height0.6m (2.1ft)0.6m (1.9ft)0.5m (1.8ft)0.5m (1.7ft)0.5m (1.7ft)0.5m (1.7ft)0.5m (1.7ft)0.5m (1.7ft)
Direction 148°
SSE
147°
SSE
148°
SSE
149°
SSE
149°
SSE
151°
SSE
150°
SSE
149°
SSE
Period11.8 sec.11.4 sec.11.0 sec.10.9 sec.10.8 sec.10.6 sec.10.5 sec.10.4 sec.
Significant height0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)
Sea water temperature
Water temperature12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 07:41 and will set at 17:20 on the beach(es) of Blenheim. The outside temperature will be a high of 52°F t and a low of 45°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 16.8mph km/h (with gusts up to 23.6mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (46°F)8°C (46°F)7°C (45°F)9°C (49°F)11°C (53°F)11°C (52°F)10°C (49°F)10°C (50°F)
Perceived temperature6°C (43°F)6°C (42°F)5°C (40°F)6°C (43°F)9°C (48°F)8°C (46°F)6°C (44°F)7°C (45°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%79%82%82%73%76%83%85%
Barometric pressure1022 hPa1021 hPa1019 hPa1018 hPa1016 hPa1013 hPa1012 hPa1010 hPa
Cloud cover3%0%20%31%100%11%19%14%
Heat index8°C (46°F)8°C (46°F)7°C (45°F)9°C (49°F)11°C (53°F)11°C (52°F)10°C (49°F)10°C (50°F)
Dew point5°C (41°F)5°C (40°F)5°C (40°F)6°C (43°F)7°C (44°F)7°C (44°F)7°C (45°F)8°C (46°F)
Wind
Speed10km/h (6mph)13km/h (8mph)15km/h (10mph)22km/h (14mph)23km/h (15mph)27km/h (17mph)27km/h (17mph)22km/h (13mph)
Gusts17km/h (10mph)20km/h (12mph)25km/h (16mph)33km/h (21mph)34km/h (21mph)32km/h (20mph)33km/h (21mph)38km/h (24mph)
Direction 280°
W
323°
NW
307°
NW
325°
NW
331°
NNW
340°
NNW
332°
NNW
322°
NW
Wind chill6°C (43°F)6°C (42°F)5°C (40°F)6°C (43°F)9°C (48°F)8°C (46°F)6°C (44°F)7°C (45°F)
Waves
Height0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.5ft)0.4m (1.5ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.4ft)
Direction 148°
SSE
147°
SSE
146°
SE
137°
SE
137°
SE
137°
SE
141°
SE
140°
SE
Period10.3 sec.10.2 sec.10.0 sec.9.8 sec.9.7 sec.11.7 sec.11.4 sec.11.1 sec.
Significant height0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.4m (1.3ft)0.6m (2ft)
Sea water temperature
Water temperature12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 07:40 and will set at 17:21 on the beach(es) of Blenheim. The outside temperature will be a high of 54°F t and a low of 47°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 21.8mph km/h (with gusts up to 29.8mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (51°F)11°C (51°F)11°C (52°F)10°C (50°F)12°C (54°F)12°C (53°F)10°C (49°F)8°C (47°F)
Perceived temperature8°C (46°F)7°C (45°F)8°C (46°F)7°C (44°F)9°C (49°F)10°C (50°F)6°C (43°F)4°C (39°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%80%81%84%84%80%89%85%
Barometric pressure1009 hPa1006 hPa1004 hPa1001 hPa1001 hPa999 hPa1001 hPa1002 hPa
Cloud cover26%81%84%59%91%100%100%100%
Heat index11°C (51°F)11°C (51°F)11°C (52°F)10°C (50°F)12°C (54°F)12°C (53°F)10°C (49°F)8°C (47°F)
Dew point7°C (45°F)7°C (45°F)8°C (46°F)7°C (45°F)9°C (49°F)9°C (48°F)8°C (46°F)6°C (43°F)
Wind
Speed28km/h (17mph)33km/h (20mph)29km/h (18mph)27km/h (17mph)29km/h (18mph)17km/h (11mph)32km/h (20mph)35km/h (22mph)
Gusts46km/h (28mph)35km/h (22mph)46km/h (29mph)32km/h (20mph)44km/h (27mph)28km/h (17mph)48km/h (30mph)48km/h (30mph)
Direction 321°
NW
321°
NW
326°
NW
299°
WNW
331°
NNW
324°
NW
166°
SSE
181°
S
Wind chill8°C (46°F)7°C (45°F)8°C (46°F)7°C (44°F)9°C (49°F)10°C (50°F)6°C (43°F)4°C (39°F)
Waves
Height0.4m (1.4ft)0.4m (1.4ft)0.5m (1.5ft)0.7m (2.4ft)1.0m (3.2ft)1.4m (4.5ft)1.0m (3.4ft)0.8m (2.7ft)
Direction 140°
SE
146°
SE
146°
SE
150°
SSE
173°
S
174°
S
173°
S
173°
S
Period10.9 sec.10.7 sec.10.4 sec.10.1 sec.14.2 sec.13.9 sec.6.5 sec.7.0 sec.
Significant height0.6m (2ft)0.6m (2ft)0.6m (2ft)0.4m (1.3ft)1.0m (3.3ft)1.3m (4.3ft)0.3m (1ft)0.5m (1.6ft)
Sea water temperature
Water temperature10°C (49°F)10°C (49°F)10°C (49°F)10°C (49°F)10°C (49°F)10°C (49°F)10°C (49°F)10°C (49°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

Change units