When to go · San Marcos
San Marcos, month by month
The best months for San Marcos: Mar, Apr, May, Sep, Oct, Nov. Months to avoid: Jul, Aug, Dec.
Month by month
- JanuaryMixedOutside the best window (Mar–May, Sep–Nov). Across United States: Cold and snowy north and in the mountains; Florida, Hawaii and the desert Southwest are the picks.17 °C (63 °F) / 5 °C (41 °F), 7 rain days63 °F (17 °C) / 41 °F (5 °C), 7 rain daysCrowds: Low
- FebruaryMixedOutside the best window (Mar–May, Sep–Nov). Across United States: Still winter north; ski season in the Rockies; Presidents' Day weekend busy. Mardi Gras in New Orleans (date varies).19 °C (66 °F) / 7 °C (45 °F), 7 rain days66 °F (19 °C) / 45 °F (7 °C), 7 rain daysCrowds: Low · 1 festival or holiday
- MarchGreatInside San Marcos's best window: Mar–May, Sep–Nov.23 °C (73 °F) / 11 °C (52 °F), 7 rain days73 °F (23 °C) / 52 °F (11 °C), 7 rain daysCrowds: Medium · 2 festivals or holidays
- AprilGreatInside San Marcos's best window: Mar–May, Sep–Nov.27 °C (81 °F) / 15 °C (59 °F), 6 rain days81 °F (27 °C) / 59 °F (15 °C), 6 rain daysCrowds: Medium · 1 festival or holiday
- MayGreatInside San Marcos's best window: Mar–May, Sep–Nov.30 °C (86 °F) / 19 °C (66 °F), 8 rain days86 °F (30 °C) / 66 °F (19 °C), 8 rain daysCrowds: Medium · 1 festival or holiday
- JuneGoodOutside the best window (Mar–May, Sep–Nov). Across United States: Rockies and northern parks open; desert heat builds; hurricane season starts. Book parks months ahead.33 °C (91 °F) / 22 °C (72 °F), 6 rain days91 °F (33 °C) / 72 °F (22 °C), 6 rain daysCrowds: High
- JulyAvoidListed as a month to avoid: Jul–Aug (38°C (100°F)+ and crowded river), plus graduation weekends in May and December.Listed as a month to avoid: Jul–Aug (100°F (38°C)+ and crowded river), plus graduation weekends in May and December.35 °C (95 °F) / 23 °C (73 °F), 5 rain days95 °F (35 °C) / 73 °F (23 °C), 5 rain daysCrowds: High · 1 festival or holiday
- AugustAvoidListed as a month to avoid: Jul–Aug (38°C (100°F)+ and crowded river), plus graduation weekends in May and December.Listed as a month to avoid: Jul–Aug (100°F (38°C)+ and crowded river), plus graduation weekends in May and December.36 °C (97 °F) / 23 °C (73 °F), 5 rain days97 °F (36 °C) / 73 °F (23 °C), 5 rain daysCrowds: High
- SeptemberGreatInside San Marcos's best window: Mar–May, Sep–Nov.33 °C (91 °F) / 21 °C (70 °F), 7 rain days91 °F (33 °C) / 70 °F (21 °C), 7 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatInside San Marcos's best window: Mar–May, Sep–Nov.28 °C (82 °F) / 15 °C (59 °F), 6 rain days82 °F (28 °C) / 59 °F (15 °C), 6 rain daysCrowds: Medium
- NovemberGreatInside San Marcos's best window: Mar–May, Sep–Nov.22 °C (72 °F) / 9 °C (48 °F), 6 rain days72 °F (22 °C) / 48 °F (9 °C), 6 rain daysCrowds: Medium · 1 festival or holiday
- DecemberAvoidListed as a month to avoid: Jul–Aug (38°C (100°F)+ and crowded river), plus graduation weekends in May and December.Listed as a month to avoid: Jul–Aug (100°F (38°C)+ and crowded river), plus graduation weekends in May and December.18 °C (64 °F) / 5 °C (41 °F), 7 rain days64 °F (18 °C) / 41 °F (5 °C), 7 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in San Marcos, side by side.
Verdict
Mar: Great
Apr: Great
Daytime high
Mar: 23 °C (73 °F)73 °F (23 °C)
Apr: 27 °C (81 °F)81 °F (27 °C)
Night low
Mar: 11 °C (52 °F)52 °F (11 °C)
Apr: 15 °C (59 °F)59 °F (15 °C)
Rain days
Mar: 7
Apr: 6 (better)
Crowds
Mar: Medium
Apr: Medium
Prices
Mar: Medium
Apr: Medium
Festivals listed
Mar: 2
Apr: 1
March: Inside San Marcos's best window: Mar–May, Sep–Nov.
April: Inside San Marcos's best window: Mar–May, Sep–Nov.
San Marcos: figures are long-term averages from this guide, not a forecast.