When is the best time to go to Harbor Isle
The chart above shows the best time of year to visit Harbor Isle, United States. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in Harbor Isle
Harbor Isle weather by month
Please note our recommendations for when to visit Harbor Isle are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 3°C | 87mm | 5.9hrs | 10.7hrs | 7°C |
The weather in January in Harbor Isle is characteristically cold and a little damp.
Based on weather alone, this is probably a time of year to avoid going to Harbor Isle for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
January is in the winter in Harbor Isle and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing 3°C (38°F), whilst at night -4°C (24°F) is normal.
On average January is the driest month of the year in Harbor Isle with around 87mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.9 hours of sunshine per day.
Harbor Isle weather in January »
February
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 4°C | 81mm | 6.6hrs | 11.6hrs | 5°C |
February in Harbor Isle is generally a little damp with the temperature being cool.
Based on weather alone, this is probably a time of year to avoid going to Harbor Isle for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
February is in the winter in Harbor Isle and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cold 5°C (40°F), whilst at night -3°C (26°F) is normal.
On average February is the 2nd driest month of the year in Harbor Isle with around 81mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.6 hours of sunshine per day.
Harbor Isle weather in February »
March
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 8°C | 99mm | 7.6hrs | 12.8hrs | 5°C |
The weather in March in Harbor Isle is characteristically cool and a little damp.
Based on weather alone, this is probably a time of year to avoid going to Harbor Isle for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
March is in the spring in Harbor Isle and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 9°C (49°F), whilst at night 1°C (33°F) is normal.
On average March is the 3rd driest month of the year in Harbor Isle with around 99mm 3.9 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.6 hours of sunshine per day.
Harbor Isle weather in March »
April
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 13°C | 101mm | 8.3hrs | 14.2hrs | 7°C |
Harbor Isle's weather in April is typically mild and damp in nature.
Based on weather alone, this is probably a time of year to avoid going to Harbor Isle for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
April is in the spring in Harbor Isle and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night 5°C (42°F) is normal.
On average April is the 4th driest month of the year in Harbor Isle with around 101mm 4 inches of rain making it a damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.3 hours of sunshine per day.
Harbor Isle weather in April »
May
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 18°C | 99mm | 8.9hrs | 15.4hrs | 11°C |
May is a a little damp month in Harbor Isle and the temperature is generally mild.
Although outside the main holiday season, there is still plenty of quite acceptable weather around this time of year. This makes it an okay time to visit Harbor Isle.
May is in the spring in Harbor Isle and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 11°C (51°F) is normal.
On average May is the 5th driest month of the year in Harbor Isle with around 99mm 3.9 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.9 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 23°C | 89mm | 9.4hrs | 10.7hrs | 17°C |
Harbor Isle's weather in June is typically warm, humid and a little damp in nature.
It is perhaps a good month to visit Harbor Isle, with some surprisingly good weather at this time of year.
June is in the summer in Harbor Isle and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a muggy 25°C (77°F), whilst at night 16°C (61°F) is normal.
On average June is the 6th driest month of the year in Harbor Isle with around 89mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.4 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 25°C | 96mm | 9.3hrs | 11.6hrs | 22°C |
July in Harbor Isle is generally a little damp with the temperature being hot.
It is perhaps the perfect month to visit Harbor Isle, with some very good weather at this time of year.
July is in the summer in Harbor Isle and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (83°F), whilst at night 19°C (67°F) is normal.
On average July is the 6th wettest month of the year in Harbor Isle with around 96mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.3 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 25°C | 95mm | 9.2hrs | 12.8hrs | 23°C |
The weather in August in Harbor Isle is characteristically hot, humid and a little damp.
It is perhaps the perfect month to visit Harbor Isle, with some extremely good weather at this time of year.
August is in the summer in Harbor Isle and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 19°C (66°F) is normal.
On average August is the 5th wettest month of the year in Harbor Isle with around 95mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.2 hours of sunshine per day.
Harbor Isle weather in August »
September
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 22°C | 86mm | 7.9hrs | 14.2hrs | 21°C |
Harbor Isle's weather in September is typically warm and a little damp in nature.
It is perhaps the perfect month to visit Harbor Isle, with some inordinately good weather at this time of year.
September is in the fall / autumn in Harbor Isle and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 15°C (59°F) is normal.
On average September is the 4th wettest month of the year in Harbor Isle with around 86mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.9 hours of sunshine per day.
Harbor Isle weather in September »
October
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 16°C | 80mm | 7.5hrs | 15.4hrs | 17°C |
October is a reasonably dry month in Harbor Isle and the temperature is generally mild.
Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it an okay time to visit Harbor Isle.
October is in the fall / autumn in Harbor Isle and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 18°C (65°F), whilst at night 9°C (49°F) is normal.
On average October is the 3rd wettest month of the year in Harbor Isle with around 80mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.5 hours of sunshine per day.
Harbor Isle weather in October »
November
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 11°C | 98mm | 5.6hrs | 10.7hrs | 13°C |
The weather in November in Harbor Isle is characteristically cool and a little damp.
Based on weather alone, this is probably a time of year to avoid going to Harbor Isle for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
November is in the fall / autumn in Harbor Isle and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 4°C (40°F) is normal.
On average November is the 2nd wettest month of the year in Harbor Isle with around 98mm 3.9 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.6 hours of sunshine per day.
Harbor Isle weather in November »
December
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 6°C | 96mm | 5.1hrs | 11.6hrs | 10°C |
December in Harbor Isle is generally a little damp with the temperature being cool.
Based on weather alone, this is probably a time of year to avoid going to Harbor Isle for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
December is in the winter in Harbor Isle and is typically the warmest month of the year. Daytime maximum temperatures average around a cold 6°C (44°F), whilst at night -1°C (30°F) is normal.
On average December is the wettest month of the year in Harbor Isle with around 96mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.1 hours of sunshine per day.
Other monthly averages
Harbor Isle weather stats
| Hottest month: | July | 28°C 82.4°F |
|---|---|---|
| Driest month: | October | 80mm 3.1ins |
| Sunniest month: | August | 9.2hrs |
| Coldest month: | January | 3.2°C 37.8°F |
| Wettest month: | April | 101mm 4ins |
| Warmest sea: | August | 22.8°C 73°F |
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