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The spots look like bacterial spots. They are common in wet humid weather and this is the time of the year they will be at its worse. I remove the lower leaves from my tomatoes as soon as they are a couple of feet tall because it is hard to keep them from getting splashed when watering and it causes less issues not to have them around.
This is the hardest time of the year to keep tomatoes productive and healthy because of heat, humidity, pests and disease. Many people are actually picking off their last tomatoes and pulling out the plants. Variety helps, but unless you have a heat resistant variety like heatwaveII, Arkansas Traveller, a cherry tomato, or other heat resistant tomato, the flowers will drop off and production ceases until the weather cools. Most people will pull their plants. Clean up the space and amend and plant new ones for the fall in frost free zones.
Happy gardening in Hawaii. Gardens are where people grow.