Weather in Brownsville in April
United States · 20-year averages, April
A good month. April is a solid month to be in Brownsville. Highs average 30.7 °C, lows 20.4 °C, and rain falls on 4 days — nothing in the month is working against you.
April ranks 6 of 12 in Brownsville: past the worst of the year but short of February, which is the month to book if the dates are open.
Rain falls on only 4 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 30.7 °C days and 20.4 °C nights; the spread matters more here than any single number.
What the averages hide
Averages flatten a month, and this one hides a few things: 18 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest April day reached 40.5 °C and the coldest night fell to 9.6 °C, and the wettest single day dropped 50 mm — roughly 143% of the month's rain in one day.
This is the volatile part. April rainfall has ranged from 0 mm to 131 mm across the twenty years measured — a 131 mm spread around an average of 35 mm. The average is real but almost no individual April looks like it, so treat the figure as the middle of a wide range rather than a forecast.
Wind is light at 15.2 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 71%.
How April sits in the year
The month is on the way up: 3.2 °C warmer than March, and May adds another 2 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.
Daylight in April
12.7 hours of daylight, gaining 0.7 hours across the month. That is between Brownsville's extremes of 13.7 and 10.5 hours, so days are long enough not to constrain the plan.
Sea temperature
The sea sits at about 23.9 °C in April — comfortable for a proper swim. The sea peaks at 29.4 °C in August and bottoms out at 21.4 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.
How busy it gets
Shoulder. The value months — prices ease off and you get the place closer to itself.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
April in Brownsville versus nearby
If Brownsville is one option among several, the nearby comparison is worth making. Corpus Christi is close enough to be a coin toss — within a degree on temperature, 2 days more rain. Laredo is the weaker option in April — 2.4 °C warmer, 2 days more rain.
So: April works, with February the better month by 16 points if the dates can move. If they cannot, nothing here should stop you booking.
Every month in Brownsville
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 22.3 | 12.5 | 5 | 25 | 75 | 10.7 | 22 | 91 |
| February | 24.5 | 14.2 | 4 | 22 | 74 | 11.3 | 21.4 | 92 |
| March | 27.5 | 17.1 | 4 | 30 | 72 | 12 | 21.9 | 90 |
| April | 30.7 | 20.4 | 4 | 35 | 71 | 12.7 | 23.9 | 76 |
| May | 32.7 | 23.3 | 6 | 57 | 71 | 13.4 | 26.2 | 62 |
| June | 34.4 | 25.6 | 8 | 79 | 70 | 13.7 | 28.3 | 48 |
| July | 33.8 | 25.9 | 8 | 78 | 72 | 13.6 | 28.9 | 54 |
| August | 34.5 | 26.4 | 8 | 44 | 70 | 13.1 | 29.4 | 48 |
| September | 32.5 | 25 | 15 | 144 | 74 | 12.3 | 29.4 | 44 |
| October | 30.7 | 21.8 | 8 | 63 | 72 | 11.6 | 28.2 | 68 |
| November | 26.7 | 17.5 | 5 | 39 | 73 | 10.9 | 25.7 | 91 |
| December | 23.4 | 13.7 | 4 | 30 | 74 | 10.5 | 23.5 | 92 |
See all twelve months in Brownsville, or where else to go in April.
Planning the rest of the trip
- Flight time to Brownsville how long you are actually in the air
- Brownsville time zone and the difference from home
- Days until your trip count down to the departure date
- Gyms & clubs in Brownsville keep training while you are there