Monthly weather forecast and climate
Guaymas, Mexico

The best months for a swim in Guaymas, Mexico, are June and October, with a perfect temperature - varying between 25°C (77°F) and 29°C (84.2°F), and scarce rainfall.

January, like December, is another pleasant winter month in Guaymas, Mexico, with average temperature varying between 22.3°C (72.1°F) and 15.1°C (59.2°F). January is the coldest month, with an average high-temperature of 22.3°C (72.1°F) and an average low-temperature of 15.1°C (59.2°F). Weather in January »

February, the last month of the winter, in Guaymas, is another pleasant month, with average temperature fluctuating between 22.8°C (73°F) and 15.5°C (59.9°F). In Guaymas, the average high-temperature in February is practically the same as in January - a still agreeable 22.8°C (73°F). Weather in February »

March, the first month of the spring, in Guaymas, is a warm month, with average temperature ranging between max 25°C (77°F) and min 17.4°C (63.3°F). In March, the average high-temperature is relatively the same as in February - a warm 25°C (77°F). Weather in March »

April, like March, in Guaymas, Mexico, is another warm spring month, with average temperature ranging between min 19.5°C (67.1°F) and max 26.4°C (79.5°F). In April, the average high-temperature is relatively the same as in March - a still warm 26.4°C (79.5°F). Weather in April »

The last month of the spring, May, is another warm month in Guaymas, Mexico, with average temperature ranging between min 22.1°C (71.8°F) and max 29°C (84.2°F). In Guaymas, the average high-temperature is relatively the same as in April - a still moderately hot 29°C (84.2°F). Weather in May »

The first month of the summer, June, is a hot month in Guaymas, Mexico, with average temperature ranging between min 26.5°C (79.7°F) and max 32.3°C (90.1°F). The perfect water temperature of 27.8°C (82°F) with 7mm (0.28") of accumulated rainfall and only 2.8 rainfall days, makes June a great period for swimming and other water activities. Weather in June »

July, like June, is a hot summer month in Guaymas, Mexico, with average temperature fluctuating between 28.9°C (84°F) and 33.1°C (91.6°F). In Guaymas, the average high-temperature in July is essentially the same as in June - a still hot 33.1°C (91.6°F). Weather in July »

August, the last month of the summer, in Guaymas, is another tropical month, with temperature in the range of an average low of 29.1°C (84.4°F) and an average high of 33.9°C (93°F). The warmest month is August, with an average high-temperature of 33.9°C (93°F) and an average low-temperature of 29.1°C (84.4°F). In August, the average heat index is appraised at a scorching 42.7°C (108.9°F). Weather in August »

September, the first month of the autumn, in Guaymas, is also a hot month, with average temperature fluctuating between 33.1°C (91.6°F) and 27.8°C (82°F). In September, the average high-temperature is almost the same as in August - a still tropical 33.1°C (91.6°F). Weather in September »

October, like September, is another hot autumn month in Guaymas, Mexico, with average temperature varying between 24.5°C (76.1°F) and 30.7°C (87.3°F). An excellent water temperature of 28.5°C (83.3°F) and only 3.3 rainfall days, with 15mm (0.59") of accumulated rainfall, makes October a prime for swimming and other water activities. Weather in October »

November, the last month of the autumn, in Guaymas, is also a moderately hot month, with average temperature ranging between max 26.5°C (79.7°F) and min 19.8°C (67.6°F). In Guaymas, the average high-temperature marginally drops, from a hot 30.7°C (87.3°F) in October, to a warm 26.5°C (79.7°F). Weather in November »

December, the first month of the winter, in Guaymas, is also an agreeable month, with average temperature ranging between min 15.9°C (60.6°F) and max 22.5°C (72.5°F). In December, the average high-temperature marginally drops, from a warm 26.5°C (79.7°F) in November, to a pleasant 22.5°C (72.5°F). Weather in December »

What is the coldest month in Guaymas?

With an average high-temperature of 22.3°C (72.1°F) and an average low-temperature of 15.1°C (59.2°F), January is the coldest month in Guaymas.

How many days does it rain in Guaymas?

Throughout the year, there are 56 rainfall days, and 164mm (6.46") of precipitation is accumulated.

When is the lowest UV index in Guaymas?

January, February, November and December, with an average maximum UV index of 5, are months with the lowest UV index.

When is the sea coldest in Guaymas?

With an average sea temperature of 17.2°C (63°F), February is the month with the coldest seawater.

What is the least humid month in Guaymas?

The least humid month in Guaymas, Mexico, is May, with an average relative humidity of 43%.

What is the driest month in Guaymas?

The only month without rainfall is May.

When does it rain in Guaymas?

January through April, June through December are months with rainfall.

When are the longest days in Guaymas?

With an average of 13.9h of daylight, June has the longest days of the year in Guaymas, Mexico.

What month has the most sunshine in Guaymas?

June has the most sunshine of the year, with an average of 12.2h of sunshine.

What is the month with the highest UV index in Guaymas?

June through September, with an average maximum UV index of 8, are months with the highest UV index in Guaymas, Mexico.

What is the warmest month in Guaymas?

August is the warmest month, with an average high-temperature of 33.9°C (93°F) and an average low-temperature of 29.1°C (84.4°F).

What is the most humid month in Guaymas?

August is the most humid month, with an average relative humidity of 62%.

What month is the sea warmest in Guaymas?

With an average sea temperature of 31°C (87.8°F), August is the month with the warmest seawater.

What is the wettest month in Guaymas?

September is the month with the most rainfall in Guaymas, Mexico. Rain falls for 10.5 days and accumulates 46mm (1.81") of precipitation.

What is the month with the shortest days in Guaymas?

December has the shortest days of the year in Guaymas, Mexico, with an average of 10.4h of daylight.

What is the month with the least sunshine in Guaymas?

December has the least sunshine of the year, with an average of 6.9h of sunshine.
Average temperature - Guaymas, Mexico
Average rainfall - Guaymas, Mexico
Average rainfall days - Guaymas, Mexico

The month with the highest number of rainy days is July (14.8 days).
Months with the least rainy days are April and May (0.6 days).

Average sea temperature - Guaymas, Mexico

The best month for swimming (with the highest average sea temperature) is August (31°C).
The coldest month (with the lowest average sea temperature) is February (17.2°C).

Average daylight / Average sunshine - Guaymas, Mexico

The month with the longest days is June (Average daylight: 13.9h).
The month with the shortest days is December (Average daylight: 10.4h).

The month with the most sunshine is June (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 6.9h).

Average UV index - Guaymas, Mexico

Months with the highest UV index are June, July, August and September (UV index 8).
Months with the lowest UV index are January, February, November and December (UV index 5).