Sayreville Climate by Month
Sayreville, New Jersey, United States
Hot summers and cold winters, with rain spread through the year.
The climate in Sayreville is one of hot summers and cold winters, with rain spread through the year. July is the warmest month, with highs around 86°F (30°C); January is the coolest at 41°F (5°C), and nights dip to 24°F (-4°C). About 48 in (1215 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 86°F(30°C)
- Average high, July
- Coldest nights
- 24°F(-4°C)
- Average low, January
- Rain per year
- 48 in(1215 mm)
- No clear rainy season
- Humidity
- 66%
- Sunniest: July
Best and worst months in Sayreville
Best for weatherThe most comfortable weather comes in May, with highs around 73°F (23°C) and about 3.7 in (93 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 41°F (5°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Sayreville weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 41°F(5°C) | 24°F(-4°C) | 3.6 in(92 mm) | 65% | 1.8 |
| FebFebruary | 43°F(6°C) | 25°F(-4°C) | 2.9 in(73 mm) | 60% | 2.7 |
| MarMarch | 51°F(11°C) | 32°F(0°C) | 4.2 in(106 mm) | 56% | 3.7 |
| AprApril | 63°F(17°C) | 41°F(5°C) | 3.7 in(93 mm) | 60% | 4.6 |
| MayMayBest | 73°F(23°C) | 51°F(10°C) | 3.7 in(93 mm) | 64% | 5.3 |
| JunJune | 82°F(28°C) | 60°F(16°C) | 4.7 in(119 mm) | 66% | 5.7 |
| JulJuly | 86°F(30°C) | 65°F(19°C) | 5.0 in(127 mm) | 69% | 5.8 |
| AugAugust | 85°F(29°C) | 64°F(18°C) | 4.4 in(112 mm) | 69% | 5.1 |
| SepSeptember | 78°F(26°C) | 57°F(14°C) | 4.3 in(109 mm) | 74% | 4.0 |
| OctOctober | 67°F(19°C) | 45°F(7°C) | 4.0 in(101 mm) | 72% | 2.9 |
| NovNovember | 56°F(13°C) | 37°F(3°C) | 3.4 in(87 mm) | 66% | 2.0 |
| DecDecember | 46°F(8°C) | 29°F(-2°C) | 4.1 in(103 mm) | 66% | 1.6 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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