When is the best time to go to Gretna
The chart above shows the best time of year to visit Gretna, 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 Gretna
Gretna weather by month
Please note our recommendations for when to visit Gretna 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 |
|---|---|---|---|
| 15°C | 128mm | 5.6hrs | 11.3hrs |
January in Gretna is generally wet with the temperature being mild.
Based on weather alone, this is probably a time of year to avoid going to Gretna for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
January is in the winter in Gretna and is typically the coldest month of the year. Daytime maximum temperatures average around a cool 16°C (61°F), whilst at night 6°C (43°F) is normal.
On average January is the driest month of the year in Gretna with around 128mm 5 inches of rain making it a wet 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.
February
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 16°C | 134mm | 6.5hrs | 12hrs |
February in Gretna is generally wet with the temperature being mild.
Based on weather alone, this is probably a time of year to avoid going to Gretna for your holidays. The weather is often not a good and not conducive to spending time outdoors.
February is in the winter in Gretna and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cool 18°C (64°F), whilst at night 8°C (46°F) is normal.
On average February is the 2nd driest month of the year in Gretna with around 134mm 5.3 inches of rain making it a wet 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 6.5 hours of sunshine per day.
March
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 20°C | 125mm | 7.7hrs | 12.8hrs |
The weather in March in Gretna is characteristically mild and wet.
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 Gretna.
March is in the spring in Gretna and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around 22°C (71°F), whilst at night 12°C (53°F) is normal.
On average March is the 3rd driest month of the year in Gretna with around 125mm 4.9 inches of rain making it a wet 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 7.7 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 23°C | 127mm | 9.2hrs | 13.7hrs |
Gretna's weather in April is typically warm, humid and wet in nature.
Although outside the main holiday season, there is still plenty of quite acceptable weather around this time of year. This makes it a good time to visit Gretna.
April is in the spring in Gretna and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a muggy 26°C (78°F), whilst at night 16°C (60°F) is normal.
On average April is the 4th driest month of the year in Gretna with around 127mm 5 inches of rain making it a wet 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 9.2 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 26°C | 122mm | 9.6hrs | 14.5hrs |
May is a wet, humid month in Gretna and the temperature is generally hot.
It is perhaps a good month to visit Gretna, with some inordinately good weather at this time of year.
May is in the spring in Gretna and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 19°C (67°F) is normal.
On average May is the 5th driest month of the year in Gretna with around 122mm 4.8 inches of rain making it a wet 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 9.6 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 29°C | 142mm | 9.6hrs | 11.3hrs |
Gretna's weather in June is typically hot, humid and wet in nature.
Based on weather alone, this is probably a time of year to avoid going to Gretna for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
June is in the summer in Gretna and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a steamy 32°C (90°F), whilst at night 23°C (73°F) is normal.
On average June is the 6th driest month of the year in Gretna with around 142mm 5.6 inches of rain making it a wet 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 9.6 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 29°C | 174mm | 8.8hrs | 12hrs |
July in Gretna is generally wet with the temperature being very hot.
Based on weather alone, this is probably a time of year to avoid going to Gretna for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
July is in the summer in Gretna and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 33°C (91°F), whilst at night 24°C (74°F) is normal.
On average July is the 6th wettest month of the year in Gretna with around 174mm 6.9 inches of rain making it a wet 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 8.8 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 29°C | 163mm | 8.6hrs | 12.8hrs |
The weather in August in Gretna is characteristically very hot, humid and wet.
Based on weather alone, this is probably a time of year to avoid going to Gretna for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
August is in the summer in Gretna and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a steamy 33°C (91°F), whilst at night 24°C (74°F) is normal.
On average August is the 5th wettest month of the year in Gretna with around 163mm 6.4 inches of rain making it a wet 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.
September
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 28°C | 147mm | 8.1hrs | 13.7hrs |
Gretna's weather in September is typically hot, humid and wet in nature.
Based on weather alone, this is probably a time of year to avoid going to Gretna for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
September is in the fall / autumn in Gretna and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 22°C (71°F) is normal.
On average September is the 4th wettest month of the year in Gretna with around 147mm 5.8 inches of rain making it a wet 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 8.1 hours of sunshine per day.
October
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 24°C | 73mm | 8.4hrs | 14.5hrs |
October is a reasonably dry, humid month in Gretna and the temperature is generally warm.
It is perhaps the perfect month to visit Gretna, with some surprisingly good weather at this time of year.
October is in the fall / autumn in Gretna and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 16°C (61°F) is normal.
On average October is the 3rd wettest month of the year in Gretna with around 73mm 2.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.4 hours of sunshine per day.
November
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 20°C | 106mm | 6.5hrs | 11.3hrs |
The climate in Gretna during November can be summarized as mild and damp.
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 Gretna.
November is in the fall / autumn in Gretna and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 22°C (71°F), whilst at night 12°C (53°F) is normal.
On average November is the 2nd wettest month of the year in Gretna with around 106mm 4.2 inches of rain making it a 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 6.5 hours of sunshine per day.
December
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 16°C | 128mm | 5.8hrs | 12hrs |
December in Gretna is generally wet with the temperature being mild.
Based on weather alone, this is probably a time of year to avoid going to Gretna for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
December is in the winter in Gretna and is typically the warmest month of the year. Daytime maximum temperatures average around 18°C (65°F), whilst at night 8°C (47°F) is normal.
On average December is the wettest month of the year in Gretna with around 128mm 5.1 inches of rain making it a wet 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 5.8 hours of sunshine per day.
Other monthly averages
Gretna weather stats
| Hottest month: | July | 32.5°C 90.5°F |
|---|---|---|
| Driest month: | October | 73mm 2.9ins |
| Sunniest month: | October | 8.4hrs |
| Coldest month: | January | 15.9°C 60.6°F |
| Wettest month: | July | 174mm 6.9ins |
| Warmest sea: | August | 29.8°C 85.6°F |
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