So, you want to know how is the weather in New York in October. You are in luck. If you are planning a visit to New York City in October, you have picked on of the best months of the year to see the sites. The weather is comfortable with relatively warm days and cool nights â great weather for joining one of our walking tours. Daily temperatures range from about 55f (13C) in the early morning to near 70f (21C) during the afternoon hours early in the month, cooling to 46f (8C) to near 60f (16C) by months end.
1 Coffee drinking in moderation contributes to our fluid intake and does not lead to dehydration or significant loss of body water1,2,3,4,.  Whilst caffeine may have a small diuretic effect, this effect is not strong enough to counter-balance the benefits of fluid intake from coffee drinking.
But much of the hubbub stems from some misguidance when it comes to caffeine and it's deleterious effects. Here, we set the record straight on some common caffeine myths. Myth 1: Caffeine is dehydrating. Yes, caffeine has a mild diuretic effect, but you're also typically consuming caffeine in the form of coffee or tea. The water in those caffeinated beverages more than makes up for the dehydrating effects of the caffeine itself.