Princeton weather in May
In May, Princeton sees average daytime highs of 85°F and overnight lows near 73°F, with 3.8 in of rain across 13.1 wet days and about 13.2 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.
Day-to-day highs hold fairly steady near 85°F through the month. The sky is clear or mostly clear about 42% of the time in May, and the air most often feels oppressive.
Daylight stretches from about 12 h 54 min at the start of May to 13 h 30 min by month's end. Set against the rest of the year, May is Princeton's 5th-clearest and 8th-windiest month. For the whole year in context, see Princeton's year-round climate.
- Daytime high
- 85°
- 5th warmest
- Overnight low
- 73°
- 7th coldest
- Rainfall
- 3.8 in
- 13.1 wet days
- Daylight
- 13 h 12 min
- 5:41 AM – 6:55 PM
- Cloud cover
- 50%
- 5th clearest
- Wind
- 7 mph
- 8th windiest
- Solar energy
- 6.45 kWh/m²
- Travel score
- 4.9
- out of 10
Princeton is census-designated place in Miami-Dade County, Florida, United States.
- Density
- 2,032/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Day-to-day highs hold fairly steady near 85°F through the month.
A typical May day in Princeton reaches about 85°F in the afternoon and slips back to 73°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 82°F and 89°F. Set against its neighbours, May runs about 3°F warmer than April and about 2°F cooler than June.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 84 | 84 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 |
| Avg low (°F) | 71 | 71 | 71 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 75 | 75 | 75 | 75 | 75 | 75 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 84 | 71 |
| 2 | 84 | 71 |
| 3 | 85 | 71 |
| 4 | 85 | 72 |
| 5 | 85 | 72 |
| 6 | 85 | 72 |
| 7 | 85 | 72 |
| 8 | 85 | 72 |
| 9 | 85 | 72 |
| 10 | 85 | 72 |
| 11 | 85 | 73 |
| 12 | 85 | 73 |
| 13 | 85 | 73 |
| 14 | 86 | 73 |
| 15 | 86 | 73 |
| 16 | 86 | 73 |
| 17 | 86 | 73 |
| 18 | 86 | 73 |
| 19 | 86 | 74 |
| 20 | 86 | 74 |
| 21 | 86 | 74 |
| 22 | 86 | 74 |
| 23 | 86 | 74 |
| 24 | 86 | 74 |
| 25 | 86 | 74 |
| 26 | 86 | 75 |
| 27 | 86 | 75 |
| 28 | 86 | 75 |
| 29 | 86 | 75 |
| 30 | 86 | 75 |
| 31 | 86 | 75 |
How May really feels in Princeton
Once humidity and wind are folded in, May averages 14 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Princeton weather by month
How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 75° / 61° | 1.4 | 5.7 | 10.6 | 7.8 |
| Feb | 77° / 62° | 1.3 | 5.8 | 11.1 | 7.7 |
| Mar | 80° / 65° | 1.6 | 6.2 | 11.8 | 7.4 |
| Apr | 83° / 69° | 2.0 | 7.7 | 12.6 | 6.4 |
| May | 85° / 73° | 3.8 | 13.1 | 13.2 | 4.9 |
| Jun | 87° / 77° | 7.3 | 23.7 | 13.6 | 3.1 |
| Jul | 88° / 78° | 5.9 | 24.7 | 13.4 | 2.9 |
| Aug | 89° / 78° | 6.9 | 25.7 | 12.9 | 2.8 |
| Sep | 87° / 77° | 6.7 | 23.2 | 12.2 | 3.2 |
| Oct | 85° / 74° | 4.0 | 15 | 11.4 | 4.9 |
| Nov | 80° / 68° | 1.5 | 6.8 | 10.8 | 7.1 |
| Dec | 77° / 64° | 1.2 | 5.5 | 10.4 | 7.7 |
Cloud cover in May
The sky is clear or mostly clear about 42% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 24% of May, with mostly cloudy or overcast conditions the remaining 34%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 72 | 72 | 72 | 72 | 72 | 73 | 73 | 73 | 72 | 72 | 72 | 71 | 70 | 69 | 68 | 68 | 67 | 66 | 65 | 64 | 64 | 63 | 62 | 61 | 59 | 58 | 57 | 55 | 54 | 52 | 50 |
| Cloudier (%) | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 29 | 30 | 31 | 32 | 32 | 33 | 34 | 35 | 36 | 36 | 37 | 38 | 39 | 41 | 42 | 43 | 45 | 46 | 48 | 50 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 72 | 28 |
| 2 | 72 | 28 |
| 3 | 72 | 28 |
| 4 | 72 | 28 |
| 5 | 72 | 28 |
| 6 | 73 | 27 |
| 7 | 73 | 27 |
| 8 | 73 | 27 |
| 9 | 72 | 28 |
| 10 | 72 | 28 |
| 11 | 72 | 28 |
| 12 | 71 | 29 |
| 13 | 70 | 30 |
| 14 | 69 | 31 |
| 15 | 68 | 32 |
| 16 | 68 | 32 |
| 17 | 67 | 33 |
| 18 | 66 | 34 |
| 19 | 65 | 35 |
| 20 | 64 | 36 |
| 21 | 64 | 36 |
| 22 | 63 | 37 |
| 23 | 62 | 38 |
| 24 | 61 | 39 |
| 25 | 59 | 41 |
| 26 | 58 | 42 |
| 27 | 57 | 43 |
| 28 | 55 | 45 |
| 29 | 54 | 46 |
| 30 | 52 | 48 |
| 31 | 50 | 50 |
Chance of precipitation in May
Princeton gets around 3.8 in of rain over 13.1 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 44% and peaks near 67% on the wettest days. The odds climb toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 32 | 32 | 33 | 34 | 35 | 37 | 38 | 40 | 41 | 43 | 44 | 46 | 48 | 49 | 51 | 52 | 54 | 56 | 57 | 59 | 61 | 63 | 65 | 67 |
| Rain chance (%) | |
|---|---|
| 1 | 30 |
| 2 | 30 |
| 3 | 30 |
| 4 | 30 |
| 5 | 30 |
| 6 | 31 |
| 7 | 31 |
| 8 | 32 |
| 9 | 32 |
| 10 | 33 |
| 11 | 34 |
| 12 | 35 |
| 13 | 37 |
| 14 | 38 |
| 15 | 40 |
| 16 | 41 |
| 17 | 43 |
| 18 | 44 |
| 19 | 46 |
| 20 | 48 |
| 21 | 49 |
| 22 | 51 |
| 23 | 52 |
| 24 | 54 |
| 25 | 56 |
| 26 | 57 |
| 27 | 59 |
| 28 | 61 |
| 29 | 63 |
| 30 | 65 |
| 31 | 67 |
Humidity in May
Most of May feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the oppressive band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 83% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Comfortable (%) | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| Humid (%) | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 11 | 10 | 10 | 9 | 8 | 7 | 6 | 6 | 5 | 4 | 4 | 3 |
| Muggy (%) | 37 | 38 | 39 | 40 | 40 | 41 | 41 | 42 | 42 | 42 | 42 | 41 | 41 | 40 | 39 | 39 | 38 | 37 | 35 | 34 | 33 | 32 | 31 | 29 | 28 | 26 | 24 | 23 | 21 | 19 | 17 |
| Oppressive (%) | 31 | 31 | 31 | 32 | 32 | 32 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 40 | 42 | 44 | 45 | 47 | 49 | 52 | 54 | 54 | 56 | 58 | 60 | 62 | 64 | 65 | 67 | 67 | 69 |
| Miserable (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 6 | 7 | 8 | 10 | 11 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 4 | 9 | 18 | 37 | 31 | 1 |
| 2 | 4 | 9 | 18 | 38 | 31 | 1 |
| 3 | 3 | 8 | 17 | 39 | 31 | 1 |
| 4 | 3 | 8 | 17 | 40 | 32 | 1 |
| 5 | 3 | 8 | 16 | 40 | 32 | 1 |
| 6 | 3 | 7 | 16 | 41 | 32 | 1 |
| 7 | 3 | 7 | 16 | 41 | 32 | 1 |
| 8 | 2 | 7 | 16 | 42 | 33 | 1 |
| 9 | 2 | 6 | 16 | 42 | 34 | 1 |
| 10 | 2 | 6 | 15 | 42 | 35 | 1 |
| 11 | 2 | 5 | 15 | 42 | 36 | 1 |
| 12 | 2 | 5 | 15 | 41 | 37 | 1 |
| 13 | 1 | 4 | 15 | 41 | 38 | 1 |
| 14 | 1 | 4 | 14 | 40 | 40 | 1 |
| 15 | 1 | 3 | 14 | 39 | 42 | 1 |
| 16 | 1 | 3 | 13 | 39 | 44 | 1 |
| 17 | 1 | 2 | 13 | 38 | 45 | 1 |
| 18 | 0 | 2 | 12 | 37 | 47 | 1 |
| 19 | 0 | 2 | 12 | 35 | 49 | 2 |
| 20 | 0 | 1 | 11 | 34 | 52 | 2 |
| 21 | 0 | 1 | 10 | 33 | 54 | 2 |
| 22 | 0 | 1 | 10 | 32 | 54 | 3 |
| 23 | 0 | 1 | 9 | 31 | 56 | 3 |
| 24 | 0 | 1 | 8 | 29 | 58 | 4 |
| 25 | 0 | 1 | 7 | 28 | 60 | 4 |
| 26 | 0 | 1 | 6 | 26 | 62 | 5 |
| 27 | 0 | 0 | 6 | 24 | 64 | 6 |
| 28 | 0 | 0 | 5 | 23 | 65 | 7 |
| 29 | 0 | 0 | 4 | 21 | 67 | 8 |
| 30 | 0 | 0 | 4 | 19 | 67 | 10 |
| 31 | 0 | 0 | 3 | 17 | 69 | 11 |
Wind in May
Winds average 7 mph in May.
Across May, daily wind ranges from about 6 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 8 | light breeze |
| 2 | 8 | light breeze |
| 3 | 8 | light breeze |
| 4 | 8 | light breeze |
| 5 | 8 | light breeze |
| 6 | 8 | light breeze |
| 7 | 8 | light breeze |
| 8 | 8 | light breeze |
| 9 | 8 | light breeze |
| 10 | 7 | light breeze |
| 11 | 7 | calm |
| 12 | 7 | calm |
| 13 | 7 | calm |
| 14 | 7 | calm |
| 15 | 7 | calm |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 6 | calm |
| 31 | 6 | calm |
Sunrise & sunset in May
Daylight runs from about 12 h 54 min at the start of May to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 36 minutes over May. Sunrise moves from 5:50 AM to 5:35 AM, and sunset from 6:47 PM to 7:03 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.9 | 13.0 | 13.0 | 13.0 | 13.0 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.5 | 13.5 |
| Sunrise (AM) | 5:50 | 5:50 | 5:49 | 5:48 | 5:47 | 5:47 | 5:46 | 5:45 | 5:45 | 5:44 | 5:43 | 5:43 | 5:42 | 5:42 | 5:41 | 5:41 | 5:40 | 5:40 | 5:39 | 5:39 | 5:38 | 5:38 | 5:37 | 5:37 | 5:37 | 5:36 | 5:36 | 5:36 | 5:36 | 5:35 | 5:35 |
| Sunset (PM) | 6:47 | 6:48 | 6:48 | 6:49 | 6:49 | 6:50 | 6:50 | 6:51 | 6:51 | 6:52 | 6:52 | 6:53 | 6:54 | 6:54 | 6:55 | 6:55 | 6:56 | 6:56 | 6:57 | 6:57 | 6:58 | 6:58 | 6:59 | 6:59 | 7:00 | 7:00 | 7:01 | 7:01 | 7:02 | 7:02 | 7:03 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.9 | 5:50 | 6:47 |
| 2 | 13.0 | 5:50 | 6:48 |
| 3 | 13.0 | 5:49 | 6:48 |
| 4 | 13.0 | 5:48 | 6:49 |
| 5 | 13.0 | 5:47 | 6:49 |
| 6 | 13.1 | 5:47 | 6:50 |
| 7 | 13.1 | 5:46 | 6:50 |
| 8 | 13.1 | 5:45 | 6:51 |
| 9 | 13.1 | 5:45 | 6:51 |
| 10 | 13.1 | 5:44 | 6:52 |
| 11 | 13.2 | 5:43 | 6:52 |
| 12 | 13.2 | 5:43 | 6:53 |
| 13 | 13.2 | 5:42 | 6:54 |
| 14 | 13.2 | 5:42 | 6:54 |
| 15 | 13.2 | 5:41 | 6:55 |
| 16 | 13.2 | 5:41 | 6:55 |
| 17 | 13.3 | 5:40 | 6:56 |
| 18 | 13.3 | 5:40 | 6:56 |
| 19 | 13.3 | 5:39 | 6:57 |
| 20 | 13.3 | 5:39 | 6:57 |
| 21 | 13.3 | 5:38 | 6:58 |
| 22 | 13.3 | 5:38 | 6:58 |
| 23 | 13.4 | 5:37 | 6:59 |
| 24 | 13.4 | 5:37 | 6:59 |
| 25 | 13.4 | 5:37 | 7:00 |
| 26 | 13.4 | 5:36 | 7:00 |
| 27 | 13.4 | 5:36 | 7:01 |
| 28 | 13.4 | 5:36 | 7:01 |
| 29 | 13.4 | 5:36 | 7:02 |
| 30 | 13.5 | 5:35 | 7:02 |
| 31 | 13.5 | 5:35 | 7:03 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 6.45 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 3.44 kWh/m² to a high of 6.45 kWh/m² in May across the year — May's 6.45 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.5 | 6.5 | 6.5 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.5 | 6.5 | 6.5 | 6.5 | 6.4 | 6.4 | 6.4 | 6.3 | 6.3 | 6.3 | 6.3 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6.1 | 6.0 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.5 | Intense |
| 2 | 6.5 | Intense |
| 3 | 6.5 | Intense |
| 4 | 6.6 | Intense |
| 5 | 6.6 | Intense |
| 6 | 6.6 | Intense |
| 7 | 6.6 | Intense |
| 8 | 6.6 | Intense |
| 9 | 6.6 | Intense |
| 10 | 6.6 | Intense |
| 11 | 6.6 | Intense |
| 12 | 6.6 | Intense |
| 13 | 6.5 | Intense |
| 14 | 6.5 | Intense |
| 15 | 6.5 | Intense |
| 16 | 6.5 | Intense |
| 17 | 6.4 | Intense |
| 18 | 6.4 | Intense |
| 19 | 6.4 | Intense |
| 20 | 6.3 | Intense |
| 21 | 6.3 | Intense |
| 22 | 6.3 | Intense |
| 23 | 6.3 | Intense |
| 24 | 6.2 | Intense |
| 25 | 6.2 | Intense |
| 26 | 6.2 | Intense |
| 27 | 6.1 | Intense |
| 28 | 6.1 | Intense |
| 29 | 6.1 | Intense |
| 30 | 6.1 | Intense |
| 31 | 6.0 | Intense |
Hazard calendar for Princeton
In May, Princeton sits inside its monsoon season. The full year is below, with each hazard's peak months called out.
Princeton sits in the Atlantic hurricane belt; the season peaks August–October.
Princeton's monsoon runs May–October, when most of the year's rain falls.
Is May a good time to visit Princeton?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is a reasonable time to visit Princeton for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Princeton in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Princeton sees daytime highs around 85°F and nights near 73°F. Pack light clothes and sun protection. Worth having: rain gear. About 13 days see rain.
Sea temperature near Princeton in May
The nearest coast averages about 81°F in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 19 mi away) is warmest in August at about 85°F and coldest in February near 76°F.
The water stays above 68°F all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 76 | 76 | 77 | 78 | 81 | 83 | 85 | 85 | 85 | 83 | 80 | 78 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 76 | Warm |
| Feb | 76 | Warm |
| Mar | 77 | Warm |
| Apr | 78 | Warm |
| May | 81 | Warm |
| Jun | 83 | Tropical |
| Jul | 85 | Tropical |
| Aug | 85 | Tropical |
| Sep | 85 | Tropical |
| Oct | 83 | Tropical |
| Nov | 80 | Warm |
| Dec | 78 | Warm |
UV index in Princeton in May
Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Princeton peaks around July 15 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 5 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 5 | 7 | 10 | 10 | 11 | 11 | 12 | 11 | 10 | 8 | 6 | 5 |
| Level | High | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 5 | High |
| Feb | 7 | Very high |
| Mar | 10 | Very high |
| Apr | 10 | Very high |
| May | 11 | Extreme |
| Jun | 11 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 10 | Very high |
| Oct | 8 | Very high |
| Nov | 6 | High |
| Dec | 5 | Moderate |
Air quality in Princeton in May
Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.
Air quality in Princeton is worst in July — around 23 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (November, 9 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 11 | 11 | 14 | 14 | 14 | 19 | 23 | 19 | 15 | 11 | 9 | 10 |
| Level | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 11 | Good |
| Mar | 14 | Moderate |
| Apr | 14 | Moderate |
| May | 14 | Moderate |
| Jun | 19 | Moderate |
| Jul | 23 | Moderate |
| Aug | 19 | Moderate |
| Sep | 15 | Moderate |
| Oct | 11 | Good |
| Nov | 9 | Good |
| Dec | 10 | Good |
Where is Princeton?
Princeton sits at 25.5°N, 80.4°W, 10 ft above sea level, in United States. The nearest listed city is Leisure City, 3.1 mi away.
Topography around Princeton
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Princeton.
Within 2 miles, the terrain around Princeton has only modest variations in elevation — a maximum elevation change of 49 ft around an average of 13 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 148 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 171 ft.
The land around Princeton is covered by grassland (35%), artificial surfaces (32%) and trees (22%) within 2 miles, grassland (20%) within 10 miles, and water (43%) and wetland (36%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Princeton (25.5384°, -80.4089°, elevation 10 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).