When is the best time to go to Portsmouth
The chart above shows the best time of year to visit Portsmouth, Dominica. 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 Portsmouth
Portsmouth weather by month
Please note our recommendations for when to visit Portsmouth 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 |
|---|---|---|---|---|
| 26°C | 145mm | 7.2hrs | 12.1hrs | 27°C |
January in Portsmouth is generally wet with the temperature being hot.
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 Portsmouth.
January is in the winter in Portsmouth and is typically the coldest month of the year. Daytime maximum temperatures average around a muggy 28°C (83°F), whilst at night 21°C (70°F) is normal.
On average January is the driest month of the year in Portsmouth with around 145mm 5.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.2 hours of sunshine per day.
Portsmouth weather in January »
February
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 26°C | 95mm | 7.8hrs | 12.4hrs | 27°C |
February in Portsmouth is generally a little damp with the temperature being hot.
It is perhaps the perfect month to visit Portsmouth, with some inordinately good weather at this time of year.
February is in the winter in Portsmouth and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a muggy 29°C (83°F), whilst at night 21°C (70°F) is normal.
On average February is the 2nd driest month of the year in Portsmouth with around 95mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.8 hours of sunshine per day.
Portsmouth weather in February »
March
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 26°C | 110mm | 8hrs | 12.8hrs | 27°C |
The weather in March in Portsmouth is characteristically hot, humid and damp.
It is perhaps a good month to visit Portsmouth, with some surprisingly good weather at this time of year.
March is in the spring in Portsmouth and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a steamy 29°C (85°F), whilst at night 21°C (70°F) is normal.
On average March is the 3rd driest month of the year in Portsmouth with around 110mm 4.3 inches of rain making it a damp time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 8 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 27°C | 105mm | 8.6hrs | 13.2hrs | 27°C |
Portsmouth's weather in April is typically hot, humid and damp in nature.
It is perhaps a good month to visit Portsmouth, with some very good weather at this time of year.
April is in the spring in Portsmouth and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 22°C (71°F) is normal.
On average April is the 4th driest month of the year in Portsmouth with around 105mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.6 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 27°C | 177mm | 8.3hrs | 13.6hrs | 28°C |
May is a wet, humid month in Portsmouth and the temperature is generally hot.
Based on weather alone, this is probably a time of year to avoid going to Portsmouth for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
May is in the spring in Portsmouth and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 23°C (74°F) is normal.
On average May is the 5th driest month of the year in Portsmouth with around 177mm 7 inches of rain making it a wet time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.3 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 28°C | 173mm | 8.1hrs | 12.1hrs | 28°C |
Hot, humid and wet weather often prevails in Portsmouth during the month of June
Based on weather alone, this is probably a time of year to avoid going to Portsmouth for your holidays. The weather is often not a good and not conducive to spending time outdoors.
June is in the summer in Portsmouth and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 24°C (74°F) is normal.
On average June is the 6th driest month of the year in Portsmouth with around 173mm 6.8 inches of rain making it a wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.1 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 28°C | 156mm | 8hrs | 12.4hrs | 28°C |
July in Portsmouth is generally wet with the temperature being hot.
Based on weather alone, this is probably a time of year to avoid going to Portsmouth for your holidays. The weather is often not a good and not conducive to spending time outdoors.
July is in the summer in Portsmouth and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 24°C (75°F) is normal.
On average July is the 6th wettest month of the year in Portsmouth with around 156mm 6.2 inches of rain making it a wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 8 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 28°C | 243mm | 8.3hrs | 12.8hrs | 29°C |
The weather in August in Portsmouth is characteristically hot, humid and very wet.
Based on weather alone, this is probably a time of year to avoid going to Portsmouth for your holidays. The weather is often not a good and not conducive to spending time outdoors.
August is in the summer in Portsmouth and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 24°C (75°F) is normal.
On average August is the 5th wettest month of the year in Portsmouth with around 243mm 9.6 inches of rain making it a very wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.3 hours of sunshine per day.
Portsmouth weather in August »
September
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 28°C | 269mm | 7.6hrs | 13.2hrs | 29°C |
Portsmouth's weather in September is typically hot, humid and very wet in nature.
Based on weather alone, this is probably a time of year to avoid going to Portsmouth for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
September is in the fall / autumn in Portsmouth and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 24°C (74°F) is normal.
On average September is the 4th wettest month of the year in Portsmouth with around 269mm 10.6 inches of rain making it a very wet time to visit. This rainfall is typically spread over 22 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.6 hours of sunshine per day.
Portsmouth weather in September »
October
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 27°C | 279mm | 7.6hrs | 13.6hrs | 29°C |
October is a very wet, humid month in Portsmouth and the temperature is generally hot.
Although outside the main holiday season, there is still plenty of fairly acceptable weather around this time of year. This makes it an okay time to visit Portsmouth.
October is in the fall / autumn in Portsmouth and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 23°C (73°F) is normal.
On average October is the 3rd wettest month of the year in Portsmouth with around 279mm 11 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.6 hours of sunshine per day.
Portsmouth weather in October »
November
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 27°C | 301mm | 7.1hrs | 12.1hrs | 28°C |
The weather in November in Portsmouth is characteristically hot, humid and very wet.
Although outside the main holiday season, there is still plenty of relatively acceptable weather around this time of year. This makes it an okay time to visit Portsmouth.
November is in the fall / autumn in Portsmouth and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 23°C (73°F) is normal.
On average November is the 2nd wettest month of the year in Portsmouth with around 301mm 11.8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.1 hours of sunshine per day.
Portsmouth weather in November »
December
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 26°C | 201mm | 6.8hrs | 12.4hrs | 28°C |
December in Portsmouth is generally very wet with the temperature being hot.
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 Portsmouth.
December is in the winter in Portsmouth and is typically the warmest month of the year. Daytime maximum temperatures average around a steamy 29°C (84°F), whilst at night 22°C (71°F) is normal.
On average December is the wettest month of the year in Portsmouth with around 201mm 7.9 inches of rain making it a very wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.8 hours of sunshine per day.
Other monthly averages
Portsmouth weather stats
| Hottest month: | July | 30.6°C 87.1°F |
|---|---|---|
| Driest month: | February | 95mm 3.7ins |
| Sunniest month: | April | 8.6hrs |
| Coldest month: | February | 28.3°C 82.9°F |
| Wettest month: | November | 301mm 11.9ins |
| Warmest sea: | September | 29°C 84.2°F |
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