Cool
Average highs are around 19°C, so pack for cooler days.
Weather Guide
Best months: July, August, June
Across the year, average daytime temperatures are around 17°C, sunshine averages 6.8h per day, and rainfall totals about 1151mm.

Annual averages
Temp
17°C
Rain
1151mm
Annual total
Sun
6.8h
Weather score
48
Mixed avg
Cool
Average highs are around 19°C, so pack for cooler days.
Showers
Rainfall averages 80mm, so some wet days are possible.
Some sun
Sunshine averages 6.4h per day, enough for a balanced month.
Map
Compare Hamilton, New Jersey, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
October19°C average high
October is close to Hamilton's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
October80mm average rain
October sits on the drier side of Hamilton's year, which helps with sightseeing and transfers.
Driest monthsJanuary to June and September to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
October6.4 hours average sun
October sits close to Hamilton's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
October43 weather score
October scores below Hamilton's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.