Our verdict
The best time to visit Port Isaac is May-June
In the summer months, temperatures can reach as high as 20℃ (68℉) in Port Isaac. The average low temperatures in winter float around 6℃ (43℉), while the coldest it gets down to is about 4℃ (40℉).
If you’re keen to see the sights of Port Isaac during the day, the sun stays up the longest around July. You don’t want to get wet on your holiday, do you? Well if you’re trying to avoid the rain, then steer clear of Port Isaac in November. Head over there in May instead if you want to increase your chances of not being rained on.
Continue reading to find out loads more about when to travel to Port Isaac, then use the handy tools below to search for the best flight and hotel options that are right for you.
Quick links: Fast facts / Seasons / Average temperatures / Monthly climate / FAQs / Map
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Port Isaac seasons
Before you continue, it’s important to know when the seasons are in Port Isaac as they might be different to yours depending on where in the world you’re travelling from. Port Isaac is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Port Isaac
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Port Isaac for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Port Isaac climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Port Isaac for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Port Isaac in January
- Average temperature: 8℃ (46℉)
- Average high temperature: 9℃ (48℉)
- Average low temperature: 6℃ (43℉)
- Average humidity: 82%
- Average sunny days: 9 days
- Average rainfall: 61mm (2") over 19 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Port Isaac in January, make sure you pack a warm jacket or coat.
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Port Isaac in February
- Average temperature: 7℃ (45℉)
- Average high temperature: 9℃ (48℉)
- Average low temperature: 6℃ (43℉)
- Average humidity: 81%
- Average sunny days: 10 days
- Average rainfall: 54mm (2") over 15 days
- Average snow days: 1 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Port Isaac in February, make sure you pack a warm jacket or coat.
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Port Isaac in March
- Average temperature: 8℃ (47℉)
- Average high temperature: 10℃ (50℉)
- Average low temperature: 6℃ (43℉)
- Average humidity: 81%
- Average sunny days: 13 days
- Average rainfall: 44mm (2") over 15 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Port Isaac in March, make sure you pack a warm jacket or coat.
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Port Isaac in April
- Average temperature: 10℃ (49℉)
- Average high temperature: 12℃ (53℉)
- Average low temperature: 7℃ (45℉)
- Average humidity: 81%
- Average sunny days: 13 days
- Average rainfall: 30mm (1") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Port Isaac in April, make sure you pack a warm jacket or coat.
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Port Isaac in May
- Average temperature: 12℃ (53℉)
- Average high temperature: 14℃ (57℉)
- Average low temperature: 10℃ (49℉)
- Average humidity: 83%
- Average sunny days: 15 days
- Average rainfall: 29mm (1") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Port Isaac in May, make sure you pack a warm jacket or coat.
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Port Isaac in June
- Average temperature: 14℃ (58℉)
- Average high temperature: 16℃ (61℉)
- Average low temperature: 12℃ (54℉)
- Average humidity: 84%
- Average sunny days: 14 days
- Average rainfall: 37mm (1") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Port Isaac in June, make sure you pack a light jumper or hoodie.
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Port Isaac in July
- Average temperature: 16℃ (61℉)
- Average high temperature: 18℃ (64℉)
- Average low temperature: 14℃ (58℉)
- Average humidity: 84%
- Average sunny days: 11 days
- Average rainfall: 38mm (2") over 16 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Port Isaac in July, make sure you pack a light jumper or hoodie.
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Port Isaac in August
- Average temperature: 16℃ (61℉)
- Average high temperature: 18℃ (64℉)
- Average low temperature: 15℃ (58℉)
- Average humidity: 84%
- Average sunny days: 10 days
- Average rainfall: 40mm (2") over 17 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Port Isaac in August, make sure you pack a light jumper or hoodie.
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Port Isaac in September
- Average temperature: 15℃ (59℉)
- Average high temperature: 17℃ (62℉)
- Average low temperature: 13℃ (56℉)
- Average humidity: 83%
- Average sunny days: 12 days
- Average rainfall: 40mm (2") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Port Isaac in September, make sure you pack a light jumper or hoodie.
Port Isaac in October
- Average temperature: 13℃ (56℉)
- Average high temperature: 15℃ (58℉)
- Average low temperature: 12℃ (53℉)
- Average humidity: 83%
- Average sunny days: 11 days
- Average rainfall: 58mm (2") over 16 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Port Isaac in October, make sure you pack a warm jacket or coat.
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Port Isaac in November
- Average temperature: 11℃ (51℉)
- Average high temperature: 12℃ (53℉)
- Average low temperature: 9℃ (49℉)
- Average humidity: 81%
- Average sunny days: 7 days
- Average rainfall: 78mm (3") over 21 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Port Isaac in November, make sure you pack a warm jacket or coat.
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Port Isaac in December
- Average temperature: 9℃ (48℉)
- Average high temperature: 10℃ (50℉)
- Average low temperature: 8℃ (46℉)
- Average humidity: 82%
- Average sunny days: 7 days
- Average rainfall: 72mm (3") over 20 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Port Isaac in December, make sure you pack a warm jacket or coat.
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