The average temperature for the week of 30 June 2025 - 6 July 2025 was 30 °C (86 °F) during the day and 24 °C (75 °F) during the night. The current temperatures are slightly below the long-term average for Treasure Island, with the daily and nighttime temperatures being 32 °C (90 °F) and 23 °C (73 °F), respectively. The average temperatures observed during different times of day (based on local time) were as below: 7am 25 °C (77 °F), 10am 27 °C (81 °F), 1pm 29 °C (84 °F), 4pm 29 °C (84 °F), 7pm 29 °C (84 °F), 10pm 26 °C (79 °F).

The week had 1 day without rain, 3 days with light rain, 2 days with moderate rain and 1 day with heavy rain. The total precipitation for the week in Treasure Island was 88 mm (3.46 in), which is above the area's average of 43 mm (1.69 in). The daytime hours (from dawn to dusk) had an average cloud coverage of 44 %. There was a meteorological observation of haze and mist.

An average wind speed of 3.5 m/s was recorded. The air pressure was 1012 hpa - 1021 hpa. On average, the air humidity in Treasure Island was 80 %.

During the daytime (from dawn to dusk), there were in average: 6 hours clear skies, 2 hours partially overcast skies, 5 hours overcast skies and 2 hours rainy weather. On average, the time of sunrise was 06:39, and the time of sunset was 20:30.

Weather overview

Treasure Island (United States of America) is a place with a tropical climate. Temperatures during the day are in the range from 21 °C (70 °F) in January to 33 °C (91 °F) in August. The highest night temperatures could be experienced in July with 24 °C (75 °F), the lowest in January with 11 °C (52 °F). The least rainy month in Treasure Island is April with its 4 days of rain, the rainiest month is August, when it rains 16 days. The highest sea temperatures in Treasure Island are in August with 30 °C (86 °F) and the lowest in February with 18 °C (64 °F).

January weather

The sea temperature continues to descent, its value is 18 °C (65 °F) in Treasure Island, while the minimum of the day temperature is observable, with its value being 21 °C (70 °F). The number of rainy days starts to rise in this month. The minimum of the night temperature can be noticed, the value of this measure is 11 °C (52 °F).

February weather

The beginning of the rise of the day temperature could be noticed, with its value of 22 °C (72 °F) in Treasure Island, while the sea temperature is on its minimum in February. The number of rainy days rises similarly to the previous month, the value of this measure is 7 days, while the rainfall amount rise's start could be observed, the value of this measure is 71 mm (2.81 in). The beginning of the rise of the night temperature could be noticed, its value is 12 °C (54 °F). The number of sun hours (without clouds) starts to rise in this month.

March weather

The sea temperature rise's start could be observed, with its value being 19 °C (67 °F) in Treasure Island, while the day temperature rises similarly to the previous month, with its value being 24 °C (76 °F). The rainfall amount rises similarly to the previous month, its value is 89 mm (3.52 in), while the beginning of the descent of the number of rainy days could be noticed. The number of sun hours (without clouds) rises similarly to the previous month, the value of this measure is 9 hours. The maximum of the wind speed is observable.

April weather

The day temperature rises similarly to the previous month, with its value being 27 °C (80 °F) in Treasure Island, and the sea temperature rises similarly to the previous month too, with its value being 22 °C (72 °F). The number of rainy days reaches its minimum, with its value being 4 days, and the rainfall amount is on its minimum as well, with its value being 49 mm (1.94 in). The night temperature continues to rise, with its value of 17 °C (62 °F). The number of sun hours (without clouds) continues to rise, its value is 10 hours.

May weather

The rise of the day temperature can be observed, with its value of 30 °C (86 °F) in Treasure Island, and the rise of the sea temperature can be observed as well, with its value of 25 °C (78 °F). The tourist season is at its beginning. The beginning of the rise of the rainfall amount could be noticed, with its value of 62 mm (2.44 in). The number of sun hours (without clouds) is on its maximum in this month. The night temperature continues to rise, with its value being 20 °C (68 °F).

June weather

The tourist season is close to its peak in Treasure Island. The rise of the sea temperature can be observed, with its value being 28 °C (82 °F), and the day temperature rises similarly to the previous month too, its value is 32 °C (90 °F). The rainfall amount rises similarly to the previous month, its value is 179 mm (7.05 in), and the number of rainy days rises similarly to the previous month too, with its value being 12 days. The night temperature continues to rise, with its value being 23 °C (73 °F).

July weather

The rise of the day temperature can be observed, with its value being 33 °C (91 °F) in Treasure Island, and the rise of the sea temperature can be observed too, with its value being 29 °C (85 °F). The wet season slowly starts. The maximum of the night temperature is observable in July. The rise of the number of rainy days can be observed, with its value being 14 days. The number of sun hours (without clouds) descents similarly to the previous month, its value is 9 hours.

August weather

The wet season is close to its peak in Treasure Island. The maximum of the day temperature is observable, with its value being 33 °C (91 °F), and the maximum of the sea temperature is observable too, with its value being 30 °C (86 °F). The rainfall amount reaches its maximum, with its value of 227 mm (8.93 in), and the maximum of the number of rainy days can be noticed too in this month. The minimum of the wind speed can be noticed, its value is 3.

September weather

The beginning of the descent of the day temperature could be noticed in Treasure Island, and the beginning of the descent of the sea temperature could be noticed too, with its value being 29 °C (84 °F). The tourist season slowly starts. The rainfall amount descent's start could be observed, the value of this measure is 182 mm (7.17 in), and the number of rainy days starts to descent too. The number of sun hours (without clouds) descents similarly to the previous month, with its value being 8 hours.

October weather

There is pending tourist season in Treasure Island. The day temperature descents similarly to the previous month, with its value of 29 °C (84 °F), and the descent of the sea temperature can be observed as well, with its value of 27 °C (80 °F). The rainfall amount continues to descent, the value of this measure is 67 mm (2.63 in), and the number of rainy days descents similarly to the previous month too, its value is 7 days. The descent of the night temperature can be observed, with its value being 20 °C (68 °F).

November weather

The descent of the day temperature can be observed, the value of this measure is 26 °C (78 °F) in Treasure Island, and the descent of the sea temperature can be observed as well, the value of this measure is 23 °C (74 °F). The number of rainy days descents similarly to the previous month, and the rainfall amount descents similarly to the previous month as well, with its value of 51 mm (2.02 in). The night temperature continues to descent, the value of this measure is 16 °C (61 °F). The beginning of the descent of the number of sun hours (without clouds) could be noticed in this month.

December weather

The sea temperature descents similarly to the previous month, the value of this measure is 20 °C (69 °F) in Treasure Island, and the day temperature continues to descent as well. The rainfall amount starts to rise, with its value being 62 mm (2.44 in). The night temperature descents similarly to the previous month, the value of this measure is 13 °C (55 °F). The minimum of the day length can be noticed in this month. The number of sun hours (without clouds) is on its minimum, with its value being 6 hours.

How many sunny hours can I expect in Treasure Island in February?

There is an average length of sunshine of 7 hours per day in February in Treasure Island.

How windy is Treasure Island in March?

In March in Treasure Island, there will be an average wind scale of 4.

What is the air temperature in April in Treasure Island at night?

The average night temperature in April in Treasure Island is 17 °C (62 °F). This temperature is pleasant for a wide range of evening, night, and morning activities from sports to sitting outside in restaurants or evening walks.

Is there a wet season in May in Treasure Island?

No, there is no wet season in May in Treasure Island - you can expect 7 days of rain during the month.

Is it hot in June in Treasure Island?

In Treasure Island in June, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.

Are there good conditions to visit in July in Treasure Island?

July is a good month to visit Treasure Island. The daily temperatures in this month reach pleasant 33 °C (91 °F). The temperature of the sea will be perfect at 29 °C (85 °F). At night, temperatures hover around a pleasant 24 °C (75 °F). In July in Treasure Island, there is a wet season, which means that it could rain more often there during your stay.

Is August part of the dry season in Treasure Island?

No, August is not a dry month in Treasure Island, expect rain approximately 16 days in a month.

What is the sea temperature in September in Treasure Island?

In Treasure Island in September expect the sea to be warm at 29 °C (84 °F). This temperature is someone's dream come true, while for someone it may no longer be ideal for the purpose of refreshment.

What is the temperature in Treasure Island during the day in October?

The average daily temperature in October in Treasure Island is 29 °C (84 °F). The ideal temperature for enjoying sunbathing by the water and a good temperature for other activities. For some people, it will be too hot in the direct sunlight and the stay may not be so pleasant. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.

How many days of precipitation on average can I expect in Treasure Island in November?

There are 6 days, which are rainy in November in Treasure Island, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 1.3 days of the week, or in general - 19 % days.

What is the humidity in Treasure Island in December?

Humidity in Treasure Island in December is 75 %.