Rahway (NJ) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Rahway.
Climate overview of Rahway
Temperatures in Rahway, New Jersey, United States of America, vary greatly throughout the year. July is the hottest month at 31°C (88°F), while January is the coldest at 5°C (41°F).
The city receives considerable rain/snowfall, with around 1242 mm (49 in) annually. December is the wettest month. July is the sunniest month, averaging 9.0 hours of sunshine per day.
Rahway Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Rahway — and find the best time to visit.
Monthly Temperature in Rahway
The climate in Rahway is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a very warm 31°C (88°F) in July to a chilly 5°C (41°F) in the coolest month, January.
Nights vary from 20°C (68°F) in July to around -4°C (25°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Rahway
Rahway has a notably wet climate with abundant precipitation, recording 1242 mm (49 in) of rain/snowfall per year. Rahway offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month December (129 mm (5.1 in)) and the driest month November (75 mm (3 in)) is not too significant. For more details, please visit our Rahway Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Rahway
For those who appreciate different seasons, Rahway serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.0 hours of sunshine daily, and embrace the darker days in December, offering only 4.7 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Rahway by Month
The relative humidity is high throughout the year in Rahway.
The city experiences its highest humidity in September, reaching 68%. In April, the humidity drops to its lowest level at 55%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Rahway
Frequently asked questions about the climate in Rahway
What is the best time to visit Rahway?
September typically offers the most optimal weather in Rahway. In contrast, January, February and December tend to have less optimal conditions.
What temperatures can I expect in Rahway?
Daytime highs range from 5°C (41°F) in January to 31°C (88°F) in July. Nighttime lows range from -4°C (25°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does Rahway get?
Annual rainfall is around 1242 mm (49 in). December is the wettest month with 129 mm (5.1 in), while November is the driest with 75 mm (3 in).
How sunny is Rahway?
Rahway receives around 2,544 hours of sunshine per year. July is the sunniest month with 271 hours, while December is the cloudiest with just 141 hours. Overall, Rahway enjoys abundant sunshine.
Rahway 3-Day Forecast
Rahway (NJ) 3-Day Forecast
Rahway on the map
Rahway is highlighted — select any city to see its climate.
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